SI Brochure

<!DOCTYPE html> <html class="ltr" dir="ltr" lang="en-US"> <head><script type="text/javascript" src="https://web-static.archive.org/_static/js/bundle-playback.js?v=7YQSqjSh" charset="utf-8"></script> <script type="text/javascript" src="https://web-static.archive.org/_static/js/wombat.js?v=txqj7nKC" charset="utf-8"></script> <script>window.RufflePlayer=window.RufflePlayer||{};window.RufflePlayer.config={"autoplay":"on","unmuteOverlay":"hidden"};</script> <script type="text/javascript" src="https://web-static.archive.org/_static/js/ruffle/ruffle.js"></script> <script type="text/javascript"> __wm.init("https://web.archive.org/web"); __wm.wombat("https://www.bipm.org/en/publications/si-brochure","20210419211921","https://web.archive.org/","web","https://web-static.archive.org/_static/", "1618867161"); </script> <link rel="stylesheet" type="text/css" href="https://web-static.archive.org/_static/css/banner-styles.css?v=p7PEIJWi" /> <link rel="stylesheet" type="text/css" href="https://web-static.archive.org/_static/css/iconochive.css?v=3PDvdIFv" />  <title>SI Brochure - BIPM</title> <meta content="initial-scale=1.0, width=device-width" name="viewport"/> <meta content="text/html; charset=UTF-8" http-equiv="content-type"/> <link href="https://web.archive.org/web/20210419211921cs_/https://www.bipm.org/o/dynamic-data-mapping-form-builder/css/main.css?browserId=firefox&themeId=bipmtheme_WAR_bipmtheme&minifierType=css&languageId=en_US&b=7110&t=1618575711841" rel="stylesheet" type="text/css"/> <link href="https://web.archive.org/web/20210419211921cs_/https://www.bipm.org/o/dynamic-data-mapping-form-renderer/css/main.css?browserId=firefox&themeId=bipmtheme_WAR_bipmtheme&minifierType=css&languageId=en_US&b=7110&t=1618575711841" rel="stylesheet" type="text/css"/> <link href="https://web.archive.org/web/20210419211921cs_/https://www.bipm.org/o/dynamic-data-mapping-web/css/main.css?browserId=firefox&themeId=bipmtheme_WAR_bipmtheme&minifierType=css&languageId=en_US&b=7110&t=1618575711841" rel="stylesheet" type="text/css"/> <script data-senna-track="temporary" type="text/javascript"> if (window.Analytics) { window._com_liferay_document_library_analytics_isViewFileEntry = false; } </script> <link data-senna-track="temporary" href="https://web.archive.org/web/20210419211921im_/https://www.bipm.org/o/bipm-theme/images/favicon.ico" rel="Shortcut Icon"/> <link data-senna-track="temporary" href="https://web.archive.org/web/20210419211921/https://www.bipm.org/en/publications/si-brochure" rel="canonical"/> <link data-senna-track="temporary" href="https://web.archive.org/web/20210419211921/https://www.bipm.org/fr/publications/si-brochure" hreflang="fr-FR" rel="alternate"/> <link data-senna-track="temporary" href="https://web.archive.org/web/20210419211921/https://www.bipm.org/en/publications/si-brochure" hreflang="x-default" rel="alternate"/> <link data-senna-track="temporary" href="https://web.archive.org/web/20210419211921/https://www.bipm.org/en/publications/si-brochure" hreflang="en-US" rel="alternate"/> <link class="lfr-css-file" data-senna-track="temporary" href="https://web.archive.org/web/20210419211921cs_/https://www.bipm.org/o/bipm-theme/css/clay.css?browserId=firefox&themeId=bipmtheme_WAR_bipmtheme&minifierType=css&languageId=en_US&b=7110&t=1618575711841" id="liferayAUICSS" rel="stylesheet" type="text/css"/> <link data-senna-track="temporary" href="/web/20210419211921cs_/https://www.bipm.org/o/frontend-css-web/main.css?browserId=firefox&themeId=bipmtheme_WAR_bipmtheme&minifierType=css&languageId=en_US&b=7110&t=1614670864343" id="liferayPortalCSS" rel="stylesheet" type="text/css"/> <link data-senna-track="temporary" href="/web/20210419211921cs_/https://www.bipm.org/combo?browserId=firefox&minifierType=&themeId=bipmtheme_WAR_bipmtheme&languageId=en_US&b=7110&com_liferay_asset_publisher_web_portlet_AssetPublisherPortlet_INSTANCE_Uy9C6RxzMDL3:%2Fcss%2Fmain.css&com_liferay_journal_content_web_portlet_JournalContentPortlet_INSTANCE_uzg9CABotyGz:%2Fcss%2Fmain.css&com_liferay_product_navigation_product_menu_web_portlet_ProductMenuPortlet:%2Fcss%2Fmain.css&t=1618582586000" id="d9b3ce0a" rel="stylesheet" type="text/css"/> <script data-senna-track="temporary" type="text/javascript"> // <![CDATA[ var Liferay = Liferay || {}; Liferay.Browser = { acceptsGzip: function() { return true; }, getMajorVersion: function() { return 67.0; }, getRevision: function() { return ''; }, getVersion: function() { return '67.0'; }, isAir: function() { return false; }, isChrome: function() { return false; }, isEdge: function() { return false; }, isFirefox: function() { return true; }, isGecko: function() { return true; }, isIe: function() { return false; }, isIphone: function() { return false; }, isLinux: function() { return false; }, isMac: function() { return false; }, isMobile: function() { return false; }, isMozilla: function() { return true; }, isOpera: function() { return false; }, isRtf: function() { return true; }, isSafari: function() { return false; }, isSun: function() { return false; }, isWebKit: function() { return false; }, isWindows: function() { return true; } }; Liferay.Data = Liferay.Data || {}; Liferay.Data.ICONS_INLINE_SVG = true; Liferay.Data.NAV_SELECTOR = '#navigation'; Liferay.Data.NAV_SELECTOR_MOBILE = '#navigationCollapse'; Liferay.Data.isCustomizationView = function() { return false; }; Liferay.Data.notices = [ null ]; Liferay.PortletKeys = { DOCUMENT_LIBRARY: 'com_liferay_document_library_web_portlet_DLPortlet', DYNAMIC_DATA_MAPPING: 'com_liferay_dynamic_data_mapping_web_portlet_DDMPortlet', ITEM_SELECTOR: 'com_liferay_item_selector_web_portlet_ItemSelectorPortlet' }; Liferay.PropsValues = { JAVASCRIPT_SINGLE_PAGE_APPLICATION_TIMEOUT: 0, NTLM_AUTH_ENABLED: false, UPLOAD_SERVLET_REQUEST_IMPL_MAX_SIZE: 272629760 }; Liferay.ThemeDisplay = { getLayoutId: function() { return '1923264'; }, getLayoutRelativeControlPanelURL: function() { return '/en/group/guest/~/control_panel/manage'; }, getLayoutRelativeURL: function() { return '/en/publications/si-brochure'; }, getLayoutURL: function() { return 'https://web.archive.org/web/20210419211921/https://www.bipm.org/en/publications/si-brochure'; }, getParentLayoutId: function() { return '8'; }, isControlPanel: function() { return false; }, isPrivateLayout: function() { return 'false'; }, isVirtualLayout: function() { return false; }, getBCP47LanguageId: function() { return 'en-US'; }, getCanonicalURL: function() { return 'https://web.archive.org/web/20210419211921/https://www.bipm.org/en/publications/si-brochure'; }, getCDNBaseURL: function() { return 'https://web.archive.org/web/20210419211921/https://www.bipm.org'; }, getCDNDynamicResourcesHost: function() { return ''; }, getCDNHost: function() { return ''; }, getCompanyGroupId: function() { return '20135'; }, getCompanyId: function() { return '20099'; }, getDefaultLanguageId: function() { return 'en_US'; }, getDoAsUserIdEncoded: function() { return ''; }, getLanguageId: function() { return 'en_US'; }, getParentGroupId: function() { return '20126'; }, getPathContext: function() { return ''; }, getPathImage: function() { return '/image'; }, getPathJavaScript: function() { return '/o/frontend-js-web'; }, getPathMain: function() { return '/en/c'; }, getPathThemeImages: function() { return 'https://web.archive.org/web/20210419211921/https://www.bipm.org/o/bipm-theme/images'; }, getPathThemeRoot: function() { return '/o/bipm-theme'; }, getPlid: function() { return '41483279'; }, getPortalURL: function() { return 'https://web.archive.org/web/20210419211921/https://www.bipm.org'; }, getScopeGroupId: function() { return '20126'; }, getScopeGroupIdOrLiveGroupId: function() { return '20126'; }, getSessionId: function() { return ''; }, getSiteAdminURL: function() { return 'https://web.archive.org/web/20210419211921/https://www.bipm.org/group/guest/~/control_panel/manage?p_p_lifecycle=0&p_p_state=maximized&p_p_mode=view'; }, getSiteGroupId: function() { return '20126'; }, getURLControlPanel: function() { return '/en/group/control_panel?refererPlid=41483279'; }, getURLHome: function() { return 'https\x3a\x2f\x2fwww\x2ebipm\x2eorg\x2fweb\x2fguest'; }, getUserId: function() { return '20103'; }, getUserName: function() { return ''; }, isAddSessionIdToURL: function() { return false; }, isFreeformLayout: function() { return false; }, isImpersonated: function() { return false; }, isSignedIn: function() { return false; }, isStateExclusive: function() { return false; }, isStateMaximized: function() { return false; }, isStatePopUp: function() { return false; } }; var themeDisplay = Liferay.ThemeDisplay; Liferay.AUI = { getAvailableLangPath: function() { return 'available_languages.jsp?browserId=firefox&themeId=bipmtheme_WAR_bipmtheme&colorSchemeId=01&minifierType=js&languageId=en_US&b=7110&t=1614670870596'; }, getCombine: function() { return true; }, getComboPath: function() { return '/combo/?browserId=firefox&minifierType=&languageId=en_US&b=7110&t=1614670870596&'; }, getDateFormat: function() { return '%m/%d/%Y'; }, getEditorCKEditorPath: function() { return '/o/frontend-editor-ckeditor-web'; }, getFilter: function() { var filter = 'raw'; filter = 'min'; return filter; }, getFilterConfig: function() { var instance = this; var filterConfig = null; if (!instance.getCombine()) { filterConfig = { replaceStr: '.js' + instance.getStaticResourceURLParams(), searchExp: '\\.js$' }; } return filterConfig; }, getJavaScriptRootPath: function() { return '/o/frontend-js-web'; }, getLangPath: function() { return 'aui_lang.jsp?browserId=firefox&themeId=bipmtheme_WAR_bipmtheme&colorSchemeId=01&minifierType=js&languageId=en_US&b=7110&t=1614670870596'; }, getPortletRootPath: function() { return '/html/portlet'; }, getStaticResourceURLParams: function() { return '?browserId=firefox&minifierType=&languageId=en_US&b=7110&t=1614670870596'; } }; Liferay.authToken = 'PmQyK1gv'; Liferay.currentURL = '\x2fen\x2fpublications\x2fsi-brochure'; Liferay.currentURLEncoded = '\x252Fen\x252Fpublications\x252Fsi-brochure'; // ]]> </script> <script src="/web/20210419211921js_/https://www.bipm.org/o/js_loader_modules?t=1618575711841" type="text/javascript"></script> <script data-senna-track="permanent" src="https://web.archive.org/web/20210419211921js_/https://www.bipm.org/combo?browserId=firefox&minifierType=js&languageId=en_US&b=7110&t=1614670870596&/o/frontend-js-web/jquery/jquery.js&/o/frontend-js-web/clay/popper.js&/o/frontend-js-web/clay/bootstrap.js&/o/frontend-js-web/loader/config.js&/o/frontend-js-web/loader/loader.js&/o/frontend-js-web/lodash/lodash.js&/o/frontend-js-web/aui/aui/aui.js&/o/frontend-js-web/aui/aui-base-html5-shiv/aui-base-html5-shiv.js&/o/frontend-js-web/liferay/browser_selectors.js&/o/frontend-js-web/liferay/modules.js&/o/frontend-js-web/liferay/aui_sandbox.js&/o/frontend-js-web/clay/collapsible-search.js&/o/frontend-js-web/clay/side-navigation.js&/o/frontend-js-web/jquery/fm.js&/o/frontend-js-web/jquery/form.js&/o/frontend-js-web/lodash/util.js&/o/frontend-js-web/misc/svg4everybody.js&/o/frontend-js-web/aui/arraylist-add/arraylist-add.js&/o/frontend-js-web/aui/arraylist-filter/arraylist-filter.js&/o/frontend-js-web/aui/arraylist/arraylist.js&/o/frontend-js-web/aui/array-extras/array-extras.js&/o/frontend-js-web/aui/array-invoke/array-invoke.js&/o/frontend-js-web/aui/attribute-base/attribute-base.js&/o/frontend-js-web/aui/attribute-complex/attribute-complex.js&/o/frontend-js-web/aui/attribute-core/attribute-core.js&/o/frontend-js-web/aui/attribute-observable/attribute-observable.js&/o/frontend-js-web/aui/attribute-extras/attribute-extras.js&/o/frontend-js-web/aui/base-base/base-base.js&/o/frontend-js-web/aui/base-pluginhost/base-pluginhost.js&/o/frontend-js-web/aui/classnamemanager/classnamemanager.js&/o/frontend-js-web/aui/datatype-xml-format/datatype-xml-format.js&/o/frontend-js-web/aui/datatype-xml-parse/datatype-xml-parse.js&/o/frontend-js-web/aui/dom-base/dom-base.js&/o/frontend-js-web/aui/dom-core/dom-core.js&/o/frontend-js-web/aui/dom-screen/dom-screen.js&/o/frontend-js-web/aui/dom-style/dom-style.js&/o/frontend-js-web/aui/event-base/event-base.js&/o/frontend-js-web/aui/event-custom-base/event-custom-base.js&/o/frontend-js-web/aui/event-custom-complex/event-custom-complex.js&/o/frontend-js-web/aui/event-delegate/event-delegate.js" type="text/javascript"></script> <script data-senna-track="permanent" src="https://web.archive.org/web/20210419211921js_/https://www.bipm.org/combo?browserId=firefox&minifierType=js&languageId=en_US&b=7110&t=1614670870596&/o/frontend-js-web/aui/event-focus/event-focus.js&/o/frontend-js-web/aui/event-hover/event-hover.js&/o/frontend-js-web/aui/event-key/event-key.js&/o/frontend-js-web/aui/event-mouseenter/event-mouseenter.js&/o/frontend-js-web/aui/event-mousewheel/event-mousewheel.js&/o/frontend-js-web/aui/event-outside/event-outside.js&/o/frontend-js-web/aui/event-resize/event-resize.js&/o/frontend-js-web/aui/event-simulate/event-simulate.js&/o/frontend-js-web/aui/event-synthetic/event-synthetic.js&/o/frontend-js-web/aui/intl/intl.js&/o/frontend-js-web/aui/io-base/io-base.js&/o/frontend-js-web/aui/io-form/io-form.js&/o/frontend-js-web/aui/io-queue/io-queue.js&/o/frontend-js-web/aui/io-upload-iframe/io-upload-iframe.js&/o/frontend-js-web/aui/io-xdr/io-xdr.js&/o/frontend-js-web/aui/json-parse/json-parse.js&/o/frontend-js-web/aui/json-stringify/json-stringify.js&/o/frontend-js-web/aui/node-base/node-base.js&/o/frontend-js-web/aui/node-core/node-core.js&/o/frontend-js-web/aui/node-event-delegate/node-event-delegate.js&/o/frontend-js-web/aui/node-event-simulate/node-event-simulate.js&/o/frontend-js-web/aui/node-focusmanager/node-focusmanager.js&/o/frontend-js-web/aui/node-pluginhost/node-pluginhost.js&/o/frontend-js-web/aui/node-screen/node-screen.js&/o/frontend-js-web/aui/node-style/node-style.js&/o/frontend-js-web/aui/oop/oop.js&/o/frontend-js-web/aui/plugin/plugin.js&/o/frontend-js-web/aui/pluginhost-base/pluginhost-base.js&/o/frontend-js-web/aui/pluginhost-config/pluginhost-config.js&/o/frontend-js-web/aui/querystring-stringify-simple/querystring-stringify-simple.js&/o/frontend-js-web/aui/queue-promote/queue-promote.js&/o/frontend-js-web/aui/selector-css2/selector-css2.js&/o/frontend-js-web/aui/selector-css3/selector-css3.js&/o/frontend-js-web/aui/selector-native/selector-native.js&/o/frontend-js-web/aui/selector/selector.js&/o/frontend-js-web/aui/widget-base/widget-base.js&/o/frontend-js-web/aui/widget-htmlparser/widget-htmlparser.js" type="text/javascript"></script> <script data-senna-track="permanent" src="https://web.archive.org/web/20210419211921js_/https://www.bipm.org/combo?browserId=firefox&minifierType=js&languageId=en_US&b=7110&t=1614670870596&/o/frontend-js-web/aui/widget-skin/widget-skin.js&/o/frontend-js-web/aui/widget-uievents/widget-uievents.js&/o/frontend-js-web/aui/yui-throttle/yui-throttle.js&/o/frontend-js-web/aui/aui-base-core/aui-base-core.js&/o/frontend-js-web/aui/aui-base-lang/aui-base-lang.js&/o/frontend-js-web/aui/aui-classnamemanager/aui-classnamemanager.js&/o/frontend-js-web/aui/aui-component/aui-component.js&/o/frontend-js-web/aui/aui-debounce/aui-debounce.js&/o/frontend-js-web/aui/aui-delayed-task-deprecated/aui-delayed-task-deprecated.js&/o/frontend-js-web/aui/aui-event-base/aui-event-base.js&/o/frontend-js-web/aui/aui-event-input/aui-event-input.js&/o/frontend-js-web/aui/aui-form-validator/aui-form-validator.js&/o/frontend-js-web/aui/aui-node-base/aui-node-base.js&/o/frontend-js-web/aui/aui-node-html5/aui-node-html5.js&/o/frontend-js-web/aui/aui-selector/aui-selector.js&/o/frontend-js-web/aui/aui-timer/aui-timer.js&/o/frontend-js-web/liferay/dependency.js&/o/frontend-js-web/liferay/dom_task_runner.js&/o/frontend-js-web/liferay/events.js&/o/frontend-js-web/liferay/language.js&/o/frontend-js-web/liferay/lazy_load.js&/o/frontend-js-web/liferay/liferay.js&/o/frontend-js-web/liferay/util.js&/o/frontend-js-web/liferay/global.bundle.js&/o/frontend-js-web/liferay/portal.js&/o/frontend-js-web/liferay/portlet.js&/o/frontend-js-web/liferay/workflow.js&/o/frontend-js-web/liferay/address.js&/o/frontend-js-web/liferay/form.js&/o/frontend-js-web/liferay/form_placeholders.js&/o/frontend-js-web/liferay/icon.js&/o/frontend-js-web/liferay/menu.js&/o/frontend-js-web/liferay/notice.js&/o/frontend-js-web/liferay/poller.js&/o/frontend-js-web/aui/async-queue/async-queue.js&/o/frontend-js-web/aui/base-build/base-build.js&/o/frontend-js-web/aui/cookie/cookie.js&/o/frontend-js-web/aui/event-touch/event-touch.js&/o/frontend-js-web/aui/overlay/overlay.js&/o/frontend-js-web/aui/querystring-stringify/querystring-stringify.js" type="text/javascript"></script> <script data-senna-track="permanent" src="https://web.archive.org/web/20210419211921js_/https://www.bipm.org/combo?browserId=firefox&minifierType=js&languageId=en_US&b=7110&t=1614670870596&/o/frontend-js-web/aui/widget-child/widget-child.js&/o/frontend-js-web/aui/widget-position-align/widget-position-align.js&/o/frontend-js-web/aui/widget-position-constrain/widget-position-constrain.js&/o/frontend-js-web/aui/widget-position/widget-position.js&/o/frontend-js-web/aui/widget-stack/widget-stack.js&/o/frontend-js-web/aui/widget-stdmod/widget-stdmod.js&/o/frontend-js-web/aui/aui-aria/aui-aria.js&/o/frontend-js-web/aui/aui-io-plugin-deprecated/aui-io-plugin-deprecated.js&/o/frontend-js-web/aui/aui-io-request/aui-io-request.js&/o/frontend-js-web/aui/aui-loading-mask-deprecated/aui-loading-mask-deprecated.js&/o/frontend-js-web/aui/aui-overlay-base-deprecated/aui-overlay-base-deprecated.js&/o/frontend-js-web/aui/aui-overlay-context-deprecated/aui-overlay-context-deprecated.js&/o/frontend-js-web/aui/aui-overlay-manager-deprecated/aui-overlay-manager-deprecated.js&/o/frontend-js-web/aui/aui-overlay-mask-deprecated/aui-overlay-mask-deprecated.js&/o/frontend-js-web/aui/aui-parse-content/aui-parse-content.js&/o/frontend-js-web/liferay/layout_exporter.js&/o/frontend-js-web/liferay/session.js&/o/frontend-js-web/liferay/deprecated.js" type="text/javascript"></script> <script src="/web/20210419211921js_/https://www.bipm.org/o/js_bundle_config?t=1618361660863" type="text/javascript"></script> <script data-senna-track="temporary" type="text/javascript"> // <![CDATA[ // ]]> </script> <script data-senna-track="permanent" id="googleAnalyticsScript" type="text/javascript"> (function(i, s, o, g, r, a, m) { i['GoogleAnalyticsObject'] = r; i[r] = i[r] || function() { var arrayValue = i[r].q || []; i[r].q = arrayValue; (i[r].q).push(arguments); }; i[r].l = 1 * new Date(); a = s.createElement(o); m = s.getElementsByTagName(o)[0]; a.async = 1; a.src = g; m.parentNode.insertBefore(a, m); })(window, document, 'script', '//web.archive.org/web/20210419211921/https://www.google-analytics.com/analytics.js', 'ga'); ga('create', 'UA-38070491-1', 'auto'); ga('send', 'pageview'); Liferay.on( 'endNavigate', function(event) { ga('set', 'page', event.path); ga('send', 'pageview'); } ); </script> <link class="lfr-css-file" data-senna-track="temporary" href="https://web.archive.org/web/20210419211921cs_/https://www.bipm.org/o/bipm-theme/css/main.css?browserId=firefox&themeId=bipmtheme_WAR_bipmtheme&minifierType=css&languageId=en_US&b=7110&t=1618575711841" id="liferayThemeCSS" rel="stylesheet" type="text/css"/> <style data-senna-track="temporary" type="text/css"> .flag_right { height:50px; float:right; } </style> <style data-senna-track="temporary" type="text/css"> </style> <script type="text/javascript"> // <![CDATA[ Liferay.Loader.require('frontend-js-spa-web@2.0.9/liferay/init.es', function(frontendJsSpaWeb209LiferayInitEs) { (function(){ var frontendJsSpaWebLiferayInitEs = frontendJsSpaWeb209LiferayInitEs; (function() {var $ = AUI.$;var _ = AUI._; Liferay.SPA = Liferay.SPA || {}; Liferay.SPA.cacheExpirationTime = 300000; Liferay.SPA.clearScreensCache = true; Liferay.SPA.debugEnabled = false; Liferay.SPA.excludedPaths = ["/documents","/image"]; Liferay.SPA.loginRedirect = ''; Liferay.SPA.navigationExceptionSelectors = ':not([target="_blank"]):not([data-senna-off]):not([data-resource-href]):not([data-cke-saved-href]):not([data-cke-saved-href])'; Liferay.SPA.requestTimeout = 0; Liferay.SPA.userNotification = { message: 'It looks like this is taking longer than expected.', timeout: 30000, title: 'Oops' }; frontendJsSpaWebLiferayInitEs.default.init( function(app) { app.setPortletsBlacklist({"com_liferay_site_navigation_directory_web_portlet_SitesDirectoryPortlet":true,"com_liferay_nested_portlets_web_portlet_NestedPortletsPortlet":true,"com_liferay_login_web_portlet_LoginPortlet":true,"com_liferay_login_web_portlet_FastLoginPortlet":true}); app.setValidStatusCodes([221,490,494,499,491,492,493,495,220]); } );})();})(); }, function(error) { console.error(error); }); // ]]> </script><link data-senna-track="permanent" href="https://web.archive.org/web/20210419211921cs_/https://www.bipm.org/combo?browserId=firefox&minifierType=css&languageId=en_US&b=7110&t=1614670839815&/o/product-navigation-simulation-theme-contributor/css/simulation_panel.css&/o/product-navigation-product-menu-theme-contributor/product_navigation_product_menu.css&/o/product-navigation-control-menu-theme-contributor/product_navigation_control_menu.css" rel="stylesheet" type="text/css"/> <script data-senna-track="permanent" src="https://web.archive.org/web/20210419211921js_/https://www.bipm.org/combo?browserId=firefox&minifierType=js&languageId=en_US&b=7110&t=1614670839815&/o/product-navigation-control-menu-theme-contributor/product_navigation_control_menu.js" type="text/javascript"></script> <script type="text/javascript"> // <![CDATA[ Liferay.on( 'ddmFieldBlur', function(event) { if (window.Analytics) { Analytics.send( 'fieldBlurred', 'Form', { fieldName: event.fieldName, focusDuration: event.focusDuration, formId: event.formId, page: event.page } ); } } ); Liferay.on( 'ddmFieldFocus', function(event) { if (window.Analytics) { Analytics.send( 'fieldFocused', 'Form', { fieldName: event.fieldName, formId: event.formId, page: event.page } ); } } ); Liferay.on( 'ddmFormPageShow', function(event) { if (window.Analytics) { Analytics.send( 'pageViewed', 'Form', { formId: event.formId, page: event.page, title: event.title } ); } } ); Liferay.on( 'ddmFormSubmit', function(event) { if (window.Analytics) { Analytics.send( 'formSubmitted', 'Form', { formId: event.formId } ); } } ); Liferay.on( 'ddmFormView', function(event) { if (window.Analytics) { Analytics.send( 'formViewed', 'Form', { formId: event.formId, title: event.title } ); } } ); // ]]> </script> <script src="https://web.archive.org/web/20210419211921js_/https://www.bipm.org/o/bipm-theme/js/bipm.js"></script> <script src="https://web.archive.org/web/20210419211921js_/https://www.bipm.org/o/bipm-theme/js/vendor/jquery.sticky.js"></script> <script src="https://web.archive.org/web/20210419211921js_/https://www.bipm.org/o/bipm-theme/js/vendor/jquery-ui.min.js"></script> </head> <body class=" controls-visible yui3-skin-sam guest-site signed-out public-page site bipm"> <nav class="quick-access-nav" id="bsja_quickAccessNav"> <h1 class="hide-accessible">Navigation</h1> <ul> <li><a href="#main-content">Skip to Content</a></li> </ul> </nav> <div id="wrapper"> <style> @media screen and (min-width: 992px) { body.bipm #wrapper #banner { background-image: url(/web/20210419211921im_/https://www.bipm.org/documents/portlet_file_entry/20126/NPL7.png/698b00c9-5d8f-1121-3dca-8f83d4e770d5?download=true) } } @media screen and (max-width: 991px) { body.bipm #wrapper #banner { background-image: url(/web/20210419211921im_/https://www.bipm.org/documents/portlet_file_entry/20126/NPL7.png/698b00c9-5d8f-1121-3dca-8f83d4e770d5?download=true) } } </style> <header id="banner" class="header" role="banner"> <div class="container"> <div class="row align-items-lg-center"> <div class="col-12 col-lg-3"> <div class="site-title"> <img class="header__logo" src="https://web.archive.org/web/20210419211921im_/https://www.bipm.org/o/bipm-theme/images/logo.png"/> </div> </div> <div class="col-12 col-lg-9"> <div id="secondary-nav" class="header-second-nav"> <ul class="header-second-nav__list"> <li class="header-second-nav__items header-second-nav__items--connexion connexion"> <div class="sign-in-header" data-dismiss="modal" data-toggle="modal" data-target="#second-nav-sign-in"> <p class="header-second-nav__content">Sign in</p> <div class="header-second-nav__picto"></div> </div> </li> <li class="header-second-nav__items header-second-nav__items--metrology metrology-areas-header" data-dismiss="modal" data-toggle="modal" data-target="#second-nav-metrology"> <p class="header-second-nav__content">Metrology areas</p> <div class="header-second-nav__picto"></div> </li> <li class="header-second-nav__items header-second-nav__items--quicks quick-links-header" data-dismiss="modal" data-toggle="modal" data-target="#second-nav-quicklinks"> <p class="header-second-nav__content">Quick links</p> <div class="header-second-nav__picto"></div> </li> <li class="header-second-nav__items header-second-nav__items--languages languages-header"> <div class="portlet-boundary portlet-boundary_com_liferay_site_navigation_language_web_portlet_SiteNavigationLanguagePortlet_ portlet-static portlet-static-end decorate portlet-language " id="p_p_id_com_liferay_site_navigation_language_web_portlet_SiteNavigationLanguagePortlet_"> <span id="p_com_liferay_site_navigation_language_web_portlet_SiteNavigationLanguagePortlet"></span> <section class="portlet" id="portlet_com_liferay_site_navigation_language_web_portlet_SiteNavigationLanguagePortlet"> <div class="portlet-content"> <div class="autofit-float autofit-row portlet-header"> <div class="autofit-col autofit-col-expand"> <h2 class="portlet-title-text">Language Selector</h2> </div> </div> <div class=" portlet-content-container"> <div class="portlet-body"> <style> .language-entry-long-text { display: inline-block; padding: 0 0.5em; } </style> <a href="/web/20210419211921/https://www.bipm.org/en/c/portal/update_language?p_l_id=41483279&redirect=%2Fen%2Fpublications%2Fsi-brochure&languageId=fr_FR" class="language-entry-long-text" lang="fr-FR">français</a> </div> </div> </div> </section> </div> </li> </ul> </div> </div> </div> <div class="row justify-content-center"> <div class="col-12 col-lg-6"> <p class="header__intro"> The intergovernmental organization through which governments act together on matters related to measurement science and measurement standards </p> </div> </div> <div id="main-nav-sticky-wrapper" class="sticky-wrapper"> <nav id="main-nav" class="main-nav navbar navbar-expand-lg"> <div> <button class="navbar-toggler" type="button" data-toggle="collapse" data-target="#navbarPrimary" aria-controls="navbarPrimary" aria-expanded="false" aria-label="Toggle navigation"> <img src="https://web.archive.org/web/20210419211921im_/https://www.bipm.org/o/bipm-theme/images/picto/picto-burger-white.svg" class="navbar-toggler--sticky"/> <img src="https://web.archive.org/web/20210419211921im_/https://www.bipm.org/o/bipm-theme/images/picto/picto-burger-blue.svg" class="navbar-toggler--nosticky"/> <span class="navbar-brand">Menu</span> </button> </div> <div> <ul class="navbar-menu-xs"> <li class="navbar-menu-xs__nav-item"> <a href="/web/20210419211921/https://www.bipm.org/search" class="navbar-menu-xs__nav-link"> <img src="https://web.archive.org/web/20210419211921im_/https://www.bipm.org/o/bipm-theme/images/search-blue.png" class="navbar-menu-xs__nav-img navbar-menu-xs__nav-img--blue"/> <img src="https://web.archive.org/web/20210419211921im_/https://www.bipm.org/o/bipm-theme/images/search-white.png" class="navbar-menu-xs__nav-img navbar-menu-xs__nav-img--white"/> </a> </li> <li class="navbar-menu-xs__nav-item"> <button class="navbar-menu-xs__nav-link" type="button" data-dismiss="modal" data-toggle="modal" data-target="#second-nav-sign-in"> <img src="https://web.archive.org/web/20210419211921im_/https://www.bipm.org/o/bipm-theme/images/picto/picto-user-blue.svg" class="navbar-menu-xs__nav-img navbar-menu-xs__nav-img--blue"/> <img src="https://web.archive.org/web/20210419211921im_/https://www.bipm.org/o/bipm-theme/images/picto/picto-user-white.svg" class="navbar-menu-xs__nav-img navbar-menu-xs__nav-img--white"/> </button> </li> <li class="navbar-menu-xs__nav-item navbar-menu-xs__nav-item--lang"> <div class="portlet-boundary portlet-boundary_com_liferay_site_navigation_language_web_portlet_SiteNavigationLanguagePortlet_ portlet-static portlet-static-end decorate portlet-language " id="p_p_id_com_liferay_site_navigation_language_web_portlet_SiteNavigationLanguagePortlet_"> <span id="p_com_liferay_site_navigation_language_web_portlet_SiteNavigationLanguagePortlet"></span> <section class="portlet" id="portlet_com_liferay_site_navigation_language_web_portlet_SiteNavigationLanguagePortlet"> <div class="portlet-content"> <div class="autofit-float autofit-row portlet-header"> <div class="autofit-col autofit-col-expand"> <h2 class="portlet-title-text">Language Selector</h2> </div> </div> <div class=" portlet-content-container"> <div class="portlet-body"> <style> .language-entry-long-text { display: inline-block; padding: 0 0.5em; } </style> <a href="/web/20210419211921/https://www.bipm.org/en/c/portal/update_language?p_l_id=41483279&redirect=%2Fen%2Fpublications%2Fsi-brochure&languageId=fr_FR" class="language-entry-long-text" lang="fr-FR">français</a> </div> </div> </div> </section> </div> </li> </ul> </div> <div class="collapse navbar-collapse" id="navbarPrimary"> <div class="navbar-collapse__header"> <div> <button class="navbar-collapse__close" type="button" type="button" data-toggle="collapse" data-target="#navbarPrimary" aria-controls="navbarPrimary" aria-expanded="false" aria-label="Toggle navigation"> <img src="https://web.archive.org/web/20210419211921im_/https://www.bipm.org/o/bipm-theme/images/picto/picto-close.svg"/> </button> </div> <div> <ul class="navbar-collapse__nav"> <li class="navbar-collapse__nav-item"> <a href="/web/20210419211921/https://www.bipm.org/search" class="navbar-collapse__nav-link"> <img src="https://web.archive.org/web/20210419211921im_/https://www.bipm.org/o/bipm-theme/images/search-blue.png" class="navbar-collapse__nav-img navbar-collapse__nav-img--blue"/> <img src="https://web.archive.org/web/20210419211921im_/https://www.bipm.org/o/bipm-theme/images/search-white.png" class="navbar-collapse__nav-img navbar-collapse__nav-img--white"/> </a> </li> <li class="navbar-collapse__nav-item"> <button class="navbar-collapse__nav-link" type="button" data-dismiss="modal" data-toggle="modal" data-target="#second-nav-sign-in"> <img src="https://web.archive.org/web/20210419211921im_/https://www.bipm.org/o/bipm-theme/images/picto/picto-user-blue.svg" class="navbar-collapse__nav-img navbar-collapse__nav-img--blue"/> <img src="https://web.archive.org/web/20210419211921im_/https://www.bipm.org/o/bipm-theme/images/picto/picto-user-white.svg" class="navbar-collapse__nav-img navbar-collapse__nav-img--white"/> </button> </li> <li class="navbar-collapse__nav-item navbar-collapse__nav-item--lang"> <div class="portlet-boundary portlet-boundary_com_liferay_site_navigation_language_web_portlet_SiteNavigationLanguagePortlet_ portlet-static portlet-static-end decorate portlet-language " id="p_p_id_com_liferay_site_navigation_language_web_portlet_SiteNavigationLanguagePortlet_"> <span id="p_com_liferay_site_navigation_language_web_portlet_SiteNavigationLanguagePortlet"></span> <section class="portlet" id="portlet_com_liferay_site_navigation_language_web_portlet_SiteNavigationLanguagePortlet"> <div class="portlet-content"> <div class="autofit-float autofit-row portlet-header"> <div class="autofit-col autofit-col-expand"> <h2 class="portlet-title-text">Language Selector</h2> </div> </div> <div class=" portlet-content-container"> <div class="portlet-body"> <style> .language-entry-long-text { display: inline-block; padding: 0 0.5em; } </style> <a href="/web/20210419211921/https://www.bipm.org/en/c/portal/update_language?p_l_id=41483279&redirect=%2Fen%2Fpublications%2Fsi-brochure&languageId=fr_FR" class="language-entry-long-text" lang="fr-FR">français</a> </div> </div> </div> </section> </div> </li> </ul> </div> </div> <div id="logo-sticky" class="logo-sticky"> <a href="/web/20210419211921/https://www.bipm.org/" class="logo-sticky__link"> <img src="https://web.archive.org/web/20210419211921im_/https://www.bipm.org/o/bipm-theme/images/BIPM-logo-midi-white.png" class="logo-sticky__img logo-sticky__img--white"/> <img src="https://web.archive.org/web/20210419211921im_/https://www.bipm.org/o/bipm-theme/images/BIPM-logo-midi-yellow.png" class="logo-sticky__img logo-sticky__img--yellow"/> </a> </div> <div class="nav-home main-nav__home"> <a href="/web/20210419211921/https://www.bipm.org/" class="nav-home__link"> <div class="nav-home__link-picto"></div> <span>Home</span> </a> </div> <div class="portlet-boundary portlet-boundary_com_liferay_site_navigation_menu_web_portlet_SiteNavigationMenuPortlet_ portlet-static portlet-static-end portlet-barebone portlet-navigation " id="p_p_id_com_liferay_site_navigation_menu_web_portlet_SiteNavigationMenuPortlet_INSTANCE_BipmMainMenuNavigation_"> <span id="p_com_liferay_site_navigation_menu_web_portlet_SiteNavigationMenuPortlet_INSTANCE_BipmMainMenuNavigation"></span> <section class="portlet" id="portlet_com_liferay_site_navigation_menu_web_portlet_SiteNavigationMenuPortlet_INSTANCE_BipmMainMenuNavigation"> <div class="portlet-content"> <div class=" portlet-content-container"> <div class="portlet-body"> <div id="navbar_com_liferay_site_navigation_menu_web_portlet_SiteNavigationMenuPortlet_INSTANCE_BipmMainMenuNavigation"> <ul aria-label="Site Pages" class="navbar-nav nav" role="menubar"> <li class="nav-item dropdown"> <a data-regularurl="https://www.bipm.org/en/about-us" data-reseturl="https://www.bipm.org/en/about-us" data-target="" data-friendlyurl="/about-us" id="layout_55753" aria-haspopup="true" class="nav-link dropdown-toggle nav-link__primary nav-link__primary--no-child" href="https://web.archive.org/web/20210419211921/https://www.bipm.org/en/about-us" data-toggle="dropdown"> About us </a> <div class="dropdown-menu"> <div class="navbar-collapse__subheader"> <button type="button" class="navbar-collapse__return" data-toggle="collapse" data-target="#55753"></button> <p class="navbar-collapse__titlechild"> About us </p> </div> <div class="dropdown-group"> <a class="dropdown-item nav-link__primary" href="https://web.archive.org/web/20210419211921/https://www.bipm.org/en/working-together"> Benefits of participation </a> <div class="dropdown-submenu " id="layout_4570284"> <a type="button" href="#" class="dropdown-item dropdown-toggle d-lg-none">Benefits of participation</a> <ul class="dropdown-menu"> <li class=" d-lg-none"> <a class="dropdown-item" href="https://web.archive.org/web/20210419211921/https://www.bipm.org/en/working-together">Page Benefits of participation</a> </li> <li class=" nav-item"> <a class="dropdown-item" href="https://web.archive.org/web/20210419211921/https://www.bipm.org/en/member-states"> Member States </a> </li> <li class=" nav-item"> <a class="dropdown-item" href="https://web.archive.org/web/20210419211921/https://www.bipm.org/en/associates"> Associates </a> </li> <li class=" nav-item"> <a class="dropdown-item" href="https://web.archive.org/web/20210419211921/https://www.bipm.org/en/how-to-join"> How to join us </a> </li> </ul> </div> </div> <div class="dropdown-group"> <a class="dropdown-item nav-link__primary" href="https://web.archive.org/web/20210419211921/https://www.bipm.org/en/governance"> Governance </a> <div class="dropdown-submenu " id="layout_2899556"> <a type="button" href="#" class="dropdown-item dropdown-toggle d-lg-none">Governance</a> <ul class="dropdown-menu"> <li class=" d-lg-none"> <a class="dropdown-item" href="https://web.archive.org/web/20210419211921/https://www.bipm.org/en/governance">Page Governance</a> </li> <li class=" nav-item"> <a class="dropdown-item" href="https://web.archive.org/web/20210419211921/https://www.bipm.org/en/committees/ci/cipm"> CIPM >> </a> </li> <li class=" nav-item"> <a class="dropdown-item" href="https://web.archive.org/web/20210419211921/https://www.bipm.org/en/committees/cg/cgpm"> CGPM >> </a> </li> <li class=" nav-item"> <a class="dropdown-item" href="https://web.archive.org/web/20210419211921/https://www.bipm.org/en/founding-documents"> Founding documents </a> </li> <li class=" nav-item"> <a class="dropdown-item" href="https://web.archive.org/web/20210419211921/https://www.bipm.org/en/strategy"> Strategy </a> </li> </ul> </div> </div> <div class="dropdown-group"> <a class="dropdown-item nav-link__primary" href="https://web.archive.org/web/20210419211921/https://www.bipm.org/en/mission-objectives"> Our Mission and Objectives </a> <div class="dropdown-submenu " id="layout_26946619"> <a type="button" href="#" class="dropdown-item dropdown-toggle d-lg-none">Our Mission and Objectives</a> <ul class="dropdown-menu"> <li class=" d-lg-none"> <a class="dropdown-item" href="https://web.archive.org/web/20210419211921/https://www.bipm.org/en/mission-objectives">Page Our Mission and Objectives</a> </li> <li class=" nav-item"> <a class="dropdown-item" href="https://web.archive.org/web/20210419211921/https://www.bipm.org/en/work-programme"> Our work programme </a> </li> <li class=" nav-item"> <a class="dropdown-item" href="https://web.archive.org/web/20210419211921/https://www.bipm.org/en/committees/cb/cbkt"> Knowledge transfer (CBKT) </a> </li> <li class=" nav-item"> <a class="dropdown-item" href="https://web.archive.org/web/20210419211921/https://www.bipm.org/en/bipm-staff"> Internal structure </a> </li> <li class=" nav-item"> <a class="dropdown-item" href="/web/20210419211921/https://www.bipm.org/opportunities" data-senna-off="true"> Jobs and opportunities </a> </li> <li class=" nav-item"> <a class="dropdown-item" href="https://web.archive.org/web/20210419211921/https://www.bipm.org/en/how-to-get-to-the-bipm"> How to get to the BIPM </a> </li> </ul> </div> </div> <div class="dropdown-group"> <a class="dropdown-item nav-link__primary" href="https://web.archive.org/web/20210419211921/https://www.bipm.org/en/historical-information"> Historical information </a> <div class="dropdown-submenu " id="layout_3406818"> <a type="button" href="#" class="dropdown-item dropdown-toggle d-lg-none">Historical information</a> <ul class="dropdown-menu"> <li class=" d-lg-none"> <a class="dropdown-item" href="https://web.archive.org/web/20210419211921/https://www.bipm.org/en/historical-information">Page Historical information</a> </li> <li class=" nav-item"> <a class="dropdown-item" href="https://web.archive.org/web/20210419211921/https://www.bipm.org/en/history-si"> Evolution of the SI </a> </li> <li class=" nav-item"> <a class="dropdown-item" href="https://web.archive.org/web/20210419211921/https://www.bipm.org/en/metre-convention"> Metre Convention </a> </li> <li class=" nav-item"> <a class="dropdown-item" href="https://web.archive.org/web/20210419211921/https://www.bipm.org/en/pavillon-de-breteuil"> Pavillon de Breteuil </a> </li> </ul> </div> </div> </div> </li> <li class="nav-item dropdown"> <a data-regularurl="https://www.bipm.org/en/coordination" data-reseturl="https://www.bipm.org/en/coordination" data-target="" data-friendlyurl="/coordination" id="layout_58801" aria-haspopup="true" class="nav-link dropdown-toggle nav-link__primary nav-link__primary--no-child" href="https://web.archive.org/web/20210419211921/https://www.bipm.org/en/coordination" data-toggle="dropdown"> Coordination </a> <div class="dropdown-menu"> <div class="navbar-collapse__subheader"> <button type="button" class="navbar-collapse__return" data-toggle="collapse" data-target="#58801"></button> <p class="navbar-collapse__titlechild"> Coordination </p> </div> <div class="dropdown-group"> <a class="dropdown-item nav-link__primary" href="https://web.archive.org/web/20210419211921/https://www.bipm.org/en/committees/cc"> CIPM Consultative Committees </a> <div class="dropdown-submenu " id="layout_1072739"> <a type="button" href="#" class="dropdown-item dropdown-toggle d-lg-none">CIPM Consultative Committees</a> <ul class="dropdown-menu"> <li class=" d-lg-none"> <a class="dropdown-item" href="https://web.archive.org/web/20210419211921/https://www.bipm.org/en/committees/cc">Page CIPM Consultative Committees</a> </li> <li class=" nav-item"> <a class="dropdown-item" href="https://web.archive.org/web/20210419211921/https://www.bipm.org/en/committees/cc/ccauv"> CCAUV </a> </li> <li class=" nav-item"> <a class="dropdown-item" href="https://web.archive.org/web/20210419211921/https://www.bipm.org/en/committees/cc/ccem"> CCEM </a> </li> <li class=" nav-item"> <a class="dropdown-item" href="https://web.archive.org/web/20210419211921/https://www.bipm.org/en/committees/cc/ccl"> CCL </a> </li> <li class=" nav-item"> <a class="dropdown-item" href="https://web.archive.org/web/20210419211921/https://www.bipm.org/en/committees/cc/ccm"> CCM </a> </li> <li class=" nav-item"> <a class="dropdown-item" href="https://web.archive.org/web/20210419211921/https://www.bipm.org/en/committees/cc/ccpr"> CCPR </a> </li> <li class=" nav-item"> <a class="dropdown-item" href="https://web.archive.org/web/20210419211921/https://www.bipm.org/en/committees/cc/ccqm"> CCQM </a> </li> <li class=" nav-item"> <a class="dropdown-item" href="https://web.archive.org/web/20210419211921/https://www.bipm.org/en/committees/cc/ccri"> CCRI </a> </li> <li class=" nav-item"> <a class="dropdown-item" href="https://web.archive.org/web/20210419211921/https://www.bipm.org/en/committees/cc/cct"> CCT </a> </li> <li class=" nav-item"> <a class="dropdown-item" href="https://web.archive.org/web/20210419211921/https://www.bipm.org/en/committees/cc/cctf"> CCTF </a> </li> <li class=" nav-item"> <a class="dropdown-item" href="https://web.archive.org/web/20210419211921/https://www.bipm.org/en/committees/cc/ccu"> CCU </a> </li> </ul> </div> </div> <div class="dropdown-group"> <a class="dropdown-item nav-link__primary" href="https://web.archive.org/web/20210419211921/https://www.bipm.org/en/cipm-mra"> CIPM MRA </a> <div class="dropdown-submenu " id="layout_43768249"> <a type="button" href="#" class="dropdown-item dropdown-toggle d-lg-none">CIPM MRA</a> <ul class="dropdown-menu"> <li class=" d-lg-none"> <a class="dropdown-item" href="https://web.archive.org/web/20210419211921/https://www.bipm.org/en/cipm-mra">Page CIPM MRA</a> </li> <li class=" nav-item"> <a class="dropdown-item" href="https://web.archive.org/web/20210419211921/https://www.bipm.org/en/cipm-mra/participation"> Participating laboratories </a> </li> <li class=" nav-item"> <a class="dropdown-item" href="https://web.archive.org/web/20210419211921/https://www.bipm.org/en/cipm-mra/logo"> Use of the CIPM MRA logo </a> </li> <li class=" nav-item"> <a class="dropdown-item" href="https://web.archive.org/web/20210419211921/https://www.bipm.org/en/cipm-mra/cipm-mra-documents"> Documents on the CIPM MRA </a> </li> <li class=" nav-item"> <a class="dropdown-item" href="https://web.archive.org/web/20210419211921/https://www.bipm.org/en/cipm-mra/cmc-approval-process"> CMC approval process </a> </li> <li class=" nav-item"> <a class="dropdown-item" href="https://web.archive.org/web/20210419211921/https://www.bipm.org/en/committees/jc/jcrb"> JCRB </a> </li> <li class=" nav-item"> <a class="dropdown-item" href="https://web.archive.org/web/20210419211921/https://www.bipm.org/kcdb" data-senna-off="true"> KCDB </a> </li> </ul> </div> </div> <div class="dropdown-group"> <a class="dropdown-item nav-link__primary" href="https://web.archive.org/web/20210419211921/https://www.bipm.org/en/committees/jc/jcgm"> Guides in Metrology: JCGM </a> <div class="dropdown-submenu " id="layout_2717479"> <a type="button" href="#" class="dropdown-item dropdown-toggle d-lg-none">Guides in Metrology: JCGM</a> <ul class="dropdown-menu"> <li class=" d-lg-none"> <a class="dropdown-item" href="https://web.archive.org/web/20210419211921/https://www.bipm.org/en/committees/jc/jcgm">Page Guides in Metrology: JCGM</a> </li> <li class=" nav-item"> <a class="dropdown-item" href="https://web.archive.org/web/20210419211921/https://www.bipm.org/en/jcgm-wg1-gum"> JCGM-WG1 (GUM) </a> </li> <li class=" nav-item"> <a class="dropdown-item" href="https://web.archive.org/web/20210419211921/https://www.bipm.org/en/jcgm-wg2-vim"> JCGM-WG2 (VIM) </a> </li> </ul> </div> </div> <div class="dropdown-group"> <a class="dropdown-item nav-link__primary" href="https://web.archive.org/web/20210419211921/https://www.bipm.org/en/international-reference-time-scales"> International reference time scales </a> <div class="dropdown-submenu " id="layout_51244397"> <a type="button" href="#" class="dropdown-item dropdown-toggle d-lg-none">International reference time scales</a> <ul class="dropdown-menu"> <li class=" d-lg-none"> <a class="dropdown-item" href="https://web.archive.org/web/20210419211921/https://www.bipm.org/en/international-reference-time-scales">Page International reference time scales</a> </li> <li class=" nav-item"> <a class="dropdown-item" href="https://web.archive.org/web/20210419211921/https://www.bipm.org/en/time-ftp"> Time FTP Server </a> </li> <li class=" nav-item"> <a class="dropdown-item" href="https://web.archive.org/web/20210419211921/https://webtai.bipm.org/" data-senna-off="true"> Time Department Database </a> </li> <li class=" nav-item"> <a class="dropdown-item" href="https://web.archive.org/web/20210419211921/https://webtai.bipm.org/database/showlab.html" data-senna-off="true"> Time laboratories contributing to UTC </a> </li> </ul> </div> </div> <div class="dropdown-group"> <a class="dropdown-item nav-link__primary" href="https://web.archive.org/web/20210419211921/https://www.bipm.org/en/committees/jc/jctlm"> Laboratory medicine: JCTLM </a> <div class="dropdown-submenu " id="layout_2717482"> <a type="button" href="#" class="dropdown-item dropdown-toggle d-lg-none">Laboratory medicine: JCTLM</a> <ul class="dropdown-menu"> <li class=" d-lg-none"> <a class="dropdown-item" href="https://web.archive.org/web/20210419211921/https://www.bipm.org/en/committees/jc/jctlm">Page Laboratory medicine: JCTLM</a> </li> <li class=" nav-item"> <a class="dropdown-item" href="https://web.archive.org/web/20210419211921/https://www.bipm.org/jctlm/" data-senna-off="true"> JCTLM Database </a> </li> </ul> </div> </div> <div class="dropdown-group"> <a class="dropdown-item nav-link__primary" href="https://web.archive.org/web/20210419211921/http://imrr.bipm.org/"> International Metrology Resource Registry </a> <div class="dropdown-submenu " id="layout_51942001"> <a type="button" href="#" class="dropdown-item dropdown-toggle d-lg-none">International Metrology Resource Registry</a> <ul class="dropdown-menu"> <li class=" d-lg-none"> <a class="dropdown-item" href="https://web.archive.org/web/20210419211921/http://imrr.bipm.org/">Page International Metrology Resource Registry</a> </li> <li class=" nav-item"> <a class="dropdown-item" href="https://web.archive.org/web/20210419211921/http://imrr.bipm.org/"> IMRR </a> </li> </ul> </div> </div> </div> </li> <li class="nav-item dropdown"> <a data-regularurl="https://www.bipm.org/en/liaison" data-reseturl="https://www.bipm.org/en/liaison" data-target="" data-friendlyurl="/liaison" id="layout_58805" aria-haspopup="true" class="nav-link dropdown-toggle nav-link__primary nav-link__primary--no-child" href="https://web.archive.org/web/20210419211921/https://www.bipm.org/en/liaison" data-toggle="dropdown"> Liaison </a> <div class="dropdown-menu"> <div class="navbar-collapse__subheader"> <button type="button" class="navbar-collapse__return" data-toggle="collapse" data-target="#58805"></button> <p class="navbar-collapse__titlechild"> Liaison </p> </div> <div class="dropdown-group"> <a class="dropdown-item nav-link__primary" href="https://web.archive.org/web/20210419211921/https://www.bipm.org/en/institutional-liaison"> Institutional liaisons </a> <div class="dropdown-submenu " id="layout_3401301"> <a type="button" href="#" class="dropdown-item dropdown-toggle d-lg-none">Institutional liaisons</a> <ul class="dropdown-menu"> <li class=" d-lg-none"> <a class="dropdown-item" href="https://web.archive.org/web/20210419211921/https://www.bipm.org/en/institutional-liaison">Page Institutional liaisons</a> </li> <li class=" nav-item"> <a class="dropdown-item" href="https://web.archive.org/web/20210419211921/https://www.bipm.org/en/liaison-partners/alphabetical-list"> Alphabetical list </a> </li> <li class=" nav-item"> <a class="dropdown-item" href="https://web.archive.org/web/20210419211921/https://www.bipm.org/en/liaison/mou"> Formal agreements </a> </li> <li class=" nav-item"> <a class="dropdown-item" href="https://web.archive.org/web/20210419211921/https://www.bipm.org/en/liaison/quality-infrastructure"> Quality infrastructure </a> </li> <li class=" nav-item"> <a class="dropdown-item" href="https://web.archive.org/web/20210419211921/https://www.bipm.org/en/liaison/technical"> Technical liaisons </a> </li> </ul> </div> </div> <div class="dropdown-group"> <a class="dropdown-item nav-link__primary nav-link__primary--no-child" href="https://web.archive.org/web/20210419211921/https://www.bipm.org/en/hosting/codata-tgfc"> CODATA-TGFC </a> </div> <div class="dropdown-group"> <a class="dropdown-item nav-link__primary" href="https://web.archive.org/web/20210419211921/https://www.bipm.org/en/committees/jc"> Joint Committees </a> <div class="dropdown-submenu " id="layout_37047832"> <a type="button" href="#" class="dropdown-item dropdown-toggle d-lg-none">Joint Committees</a> <ul class="dropdown-menu"> <li class=" d-lg-none"> <a class="dropdown-item" href="https://web.archive.org/web/20210419211921/https://www.bipm.org/en/committees/jc">Page Joint Committees</a> </li> <li class=" nav-item"> <a class="dropdown-item" href="https://web.archive.org/web/20210419211921/https://www.bipm.org/en/committees/jc/jcgm"> Guides in Metrology: JCGM </a> </li> <li class=" nav-item"> <a class="dropdown-item" href="https://web.archive.org/web/20210419211921/https://www.bipm.org/en/committees/jc/jctlm"> Laboratory medicine: JCTLM </a> </li> <li class=" nav-item"> <a class="dropdown-item" href="https://web.archive.org/web/20210419211921/https://www.bipm.org/en/jcrb"> CIPM MRA: JCRB </a> </li> </ul> </div> </div> <div class="dropdown-group"> <a class="dropdown-item nav-link__primary nav-link__primary--no-child" href="https://web.archive.org/web/20210419211921/https://www.bipm.org/en/committees/di/partners"> NMI Directors and Member State Representatives </a> </div> <div class="dropdown-group"> <a class="dropdown-item nav-link__primary" href="https://web.archive.org/web/20210419211921/https://www.bipm.org/en/liaison/regional"> Regional metrology organizations </a> <div class="dropdown-submenu " id="layout_36869602"> <a type="button" href="#" class="dropdown-item dropdown-toggle d-lg-none">Regional metrology organizations</a> <ul class="dropdown-menu"> <li class=" d-lg-none"> <a class="dropdown-item" href="https://web.archive.org/web/20210419211921/https://www.bipm.org/en/liaison/regional">Page Regional metrology organizations</a> </li> <li class=" nav-item"> <a class="dropdown-item" href="https://web.archive.org/web/20210419211921/https://www.bipm.org/en/liaison/regional/afrimets"> AFRIMETS </a> </li> <li class=" nav-item"> <a class="dropdown-item" href="https://web.archive.org/web/20210419211921/https://www.bipm.org/en/liaison/regional/apmp"> APMP </a> </li> <li class=" nav-item"> <a class="dropdown-item" href="https://web.archive.org/web/20210419211921/https://www.bipm.org/en/liaison/regional/coomet"> COOMET </a> </li> <li class=" nav-item"> <a class="dropdown-item" href="https://web.archive.org/web/20210419211921/https://www.bipm.org/en/liaison/regional/euramet"> EURAMET </a> </li> <li class=" nav-item"> <a class="dropdown-item" href="https://web.archive.org/web/20210419211921/https://www.bipm.org/en/liaison/regional/gulfmet"> GULFMET </a> </li> <li class=" nav-item"> <a class="dropdown-item" href="https://web.archive.org/web/20210419211921/https://www.bipm.org/en/liaison/regional/sim"> SIM </a> </li> </ul> </div> </div> </div> </li> <li class="nav-item dropdown"> <a data-regularurl="https://www.bipm.org/en/technical-scientific" data-reseturl="https://www.bipm.org/en/technical-scientific" data-target="" data-friendlyurl="/technical-scientific" id="layout_58809" aria-haspopup="true" class="nav-link dropdown-toggle nav-link__primary nav-link__primary--no-child" href="https://web.archive.org/web/20210419211921/https://www.bipm.org/en/technical-scientific" data-toggle="dropdown"> Technical/Scientific </a> <div class="dropdown-menu"> <div class="navbar-collapse__subheader"> <button type="button" class="navbar-collapse__return" data-toggle="collapse" data-target="#58809"></button> <p class="navbar-collapse__titlechild"> Technical/Scientific </p> </div> <div class="dropdown-group"> <a class="dropdown-item nav-link__primary" href="https://web.archive.org/web/20210419211921/https://www.bipm.org/en/measurement-units"> The International System of Units (SI) </a> <div class="dropdown-submenu " id="layout_42087691"> <a type="button" href="#" class="dropdown-item dropdown-toggle d-lg-none">The International System of Units (SI)</a> <ul class="dropdown-menu"> <li class=" d-lg-none"> <a class="dropdown-item" href="https://web.archive.org/web/20210419211921/https://www.bipm.org/en/measurement-units">Page The International System of Units (SI)</a> </li> <li class=" nav-item"> <a class="dropdown-item" href="https://web.archive.org/web/20210419211921/https://www.bipm.org/en/measurement-units/si-defining-constants"> Defining constants </a> </li> <li class=" nav-item"> <a class="dropdown-item" href="https://web.archive.org/web/20210419211921/https://www.bipm.org/en/measurement-units/si-base-units"> SI base units </a> </li> <li class=" nav-item"> <a class="dropdown-item" href="https://web.archive.org/web/20210419211921/https://www.bipm.org/en/measurement-units/si-prefixes"> SI prefixes </a> </li> <li class=" nav-item"> <a class="dropdown-item" href="https://web.archive.org/web/20210419211921/https://www.bipm.org/en/measurement-units/si-promotion"> SI promotion </a> </li> </ul> </div> </div> <div class="dropdown-group"> <a class="dropdown-item nav-link__primary" href="https://web.archive.org/web/20210419211921/https://www.bipm.org/en/technical-areas"> Technical areas of the BIPM </a> <div class="dropdown-submenu " id="layout_51930736"> <a type="button" href="#" class="dropdown-item dropdown-toggle d-lg-none">Technical areas of the BIPM</a> <ul class="dropdown-menu"> <li class=" d-lg-none"> <a class="dropdown-item" href="https://web.archive.org/web/20210419211921/https://www.bipm.org/en/technical-areas">Page Technical areas of the BIPM</a> </li> <li class=" nav-item"> <a class="dropdown-item" href="https://web.archive.org/web/20210419211921/https://www.bipm.org/en/electrical-metrology"> Electrical metrology </a> </li> <li class=" nav-item"> <a class="dropdown-item" href="https://web.archive.org/web/20210419211921/https://www.bipm.org/en/gas-metrology"> Gas metrology </a> </li> <li class=" nav-item"> <a class="dropdown-item" href="https://web.archive.org/web/20210419211921/https://www.bipm.org/en/mass-metrology"> Mass metrology </a> </li> <li class=" nav-item"> <a class="dropdown-item" href="https://web.archive.org/web/20210419211921/https://www.bipm.org/en/organic-analysis"> Organic analysis </a> </li> <li class=" nav-item"> <a class="dropdown-item" href="https://web.archive.org/web/20210419211921/https://www.bipm.org/en/dosimetry"> Radiation dosimetry </a> </li> <li class=" nav-item"> <a class="dropdown-item" href="https://web.archive.org/web/20210419211921/https://www.bipm.org/en/radionuclide-metrology"> Radionuclide metrology </a> </li> <li class=" nav-item"> <a class="dropdown-item" href="https://web.archive.org/web/20210419211921/https://www.bipm.org/en/time-metrology"> Time metrology </a> </li> </ul> </div> </div> </div> </li> <li class="nav-item dropdown active"> <a data-regularurl="https://www.bipm.org/en/publications-events" data-reseturl="https://www.bipm.org/en/publications-events" data-target="" data-friendlyurl="/publications-events" id="layout_58813" aria-haspopup="true" class="nav-link dropdown-toggle nav-link__primary nav-link__primary--no-child" href="https://web.archive.org/web/20210419211921/https://www.bipm.org/en/publications-events" data-toggle="dropdown"> Publications & Events </a> <div class="dropdown-menu"> <div class="navbar-collapse__subheader"> <button type="button" class="navbar-collapse__return" data-toggle="collapse" data-target="#58813"></button> <p class="navbar-collapse__titlechild"> Publications & Events </p> </div> <div class="dropdown-group"> <a class="dropdown-item nav-link__primary" href="https://web.archive.org/web/20210419211921/https://www.bipm.org/en/publications"> Publications </a> <div class="dropdown-submenu " id="layout_52384896"> <a type="button" href="#" class="dropdown-item dropdown-toggle d-lg-none">Publications</a> <ul class="dropdown-menu"> <li class=" d-lg-none"> <a class="dropdown-item" href="https://web.archive.org/web/20210419211921/https://www.bipm.org/en/publications">Page Publications</a> </li> <li class=" nav-item"> <a class="dropdown-item" href="https://web.archive.org/web/20210419211921/https://www.bipm.org/en/publications/annual-review"> Annual Review </a> </li> <li class=" nav-item"> <a class="dropdown-item" href="/web/20210419211921/https://www.bipm.org/committees/cg/cgpm/publications" data-senna-off="true"> CGPM: Proceedings </a> </li> <li class=" nav-item"> <a class="dropdown-item" href="/web/20210419211921/https://www.bipm.org/committees/ci/cipm/publications" data-senna-off="true"> CIPM: Publications </a> </li> <li class=" nav-item"> <a class="dropdown-item" href="https://web.archive.org/web/20210419211921/https://www.bipm.org/en/cipm-mra/cipm-mra-documents"> Documents on the CIPM MRA </a> </li> <li class=" nav-item"> <a class="dropdown-item" href="https://web.archive.org/web/20210419211921/https://www.bipm.org/en/publications/financial-report"> Financial Report </a> </li> <li class=" nav-item"> <a class="dropdown-item" href="https://web.archive.org/web/20210419211921/https://www.bipm.org/en/publications/guides"> Guides in Metrology </a> </li> <li class=" nav-item"> <a class="dropdown-item" href="https://web.archive.org/web/20210419211921/https://iopscience.iop.org/journal/0026-1394"> Metrologia </a> </li> <li class=" nav-item"> <a class="dropdown-item" href="https://web.archive.org/web/20210419211921/https://www.bipm.org/en/publications/mises-en-pratique"> Mises en pratique </a> </li> <li class=" nav-item"> <a class="dropdown-item" href="https://web.archive.org/web/20210419211921/https://www.bipm.org/en/publications/monographies"> Monographies BIPM </a> </li> <li class=" nav-item"> <a class="dropdown-item" href="https://web.archive.org/web/20210419211921/https://www.bipm.org/en/publications/notification"> Notification </a> </li> <li class=" nav-item"> <a class="dropdown-item" href="https://web.archive.org/web/20210419211921/https://www.bipm.org/en/publications/rapports-bipm"> Rapports BIPM </a> </li> <li class=" nav-item"> <a class="dropdown-item" href="https://web.archive.org/web/20210419211921/https://www.bipm.org/en/scientific-output"> Scientific output </a> </li> <li class="active nav-item"> <a class="dropdown-item" href="https://web.archive.org/web/20210419211921/https://www.bipm.org/en/publications/si-brochure"> SI Brochure </a> </li> <li class=" nav-item"> <a class="dropdown-item" href="https://web.archive.org/web/20210419211921/https://www.bipm.org/en/standard-frequencies"> Standard frequencies </a> </li> <li class=" nav-item"> <a class="dropdown-item" href="https://web.archive.org/web/20210419211921/https://www.bipm.org/en/time-scale"> Time scales and related data </a> </li> </ul> </div> </div> <div class="dropdown-group"> <a class="dropdown-item nav-link__primary" href="https://web.archive.org/web/20210419211921/https://www.bipm.org/en/metrology-resources"> Metrology resources </a> <div class="dropdown-submenu " id="layout_44313443"> <a type="button" href="#" class="dropdown-item dropdown-toggle d-lg-none">Metrology resources</a> <ul class="dropdown-menu"> <li class=" d-lg-none"> <a class="dropdown-item" href="https://web.archive.org/web/20210419211921/https://www.bipm.org/en/metrology-resources">Page Metrology resources</a> </li> <li class=" nav-item"> <a class="dropdown-item" href="https://web.archive.org/web/20210419211921/https://www.bipm.org/en/metrology-in-the-fight-against-covid-19"> Metrology in the fight against Covid-19 </a> </li> <li class=" nav-item"> <a class="dropdown-item" href="https://web.archive.org/web/20210419211921/https://www.bipm.org/en/impact-studies"> Impact Studies </a> </li> <li class=" nav-item"> <a class="dropdown-item" href="https://web.archive.org/web/20210419211921/http://imrr.bipm.org/" data-senna-off="true"> International Metrology Resource Registry </a> </li> <li class=" nav-item"> <a class="dropdown-item" href="https://web.archive.org/web/20210419211921/https://www.bipm.org/jctlm/" data-senna-off="true"> JCTLM Database </a> </li> <li class=" nav-item"> <a class="dropdown-item" href="https://web.archive.org/web/20210419211921/https://www.bipm.org/kcdb/" data-senna-off="true"> KCDB - CIPM MRA Database </a> </li> <li class=" nav-item"> <a class="dropdown-item" href="https://web.archive.org/web/20210419211921/https://www.bipm.org/en/ftp-server"> Time scales - BIPM FTP server </a> </li> <li class=" nav-item"> <a class="dropdown-item" href="https://web.archive.org/web/20210419211921/https://webtai.bipm.org/" data-senna-off="true"> Time Department Database </a> </li> </ul> </div> </div> <div class="dropdown-group"> <a class="dropdown-item nav-link__primary" href="https://web.archive.org/web/20210419211921/https://www.bipm.org/en/events"> Events </a> <div class="dropdown-submenu " id="layout_44196745"> <a type="button" href="#" class="dropdown-item dropdown-toggle d-lg-none">Events</a> <ul class="dropdown-menu"> <li class=" d-lg-none"> <a class="dropdown-item" href="https://web.archive.org/web/20210419211921/https://www.bipm.org/en/events">Page Events</a> </li> <li class=" nav-item"> <a class="dropdown-item" href="https://web.archive.org/web/20210419211921/https://www.bipm.org/en/bipm-workshops"> BIPM and co-organized workshops </a> </li> <li class=" nav-item"> <a class="dropdown-item" href="https://web.archive.org/web/20210419211921/https://www.bipm.org/en/events/upcoming"> Upcoming </a> </li> <li class=" nav-item"> <a class="dropdown-item" href="https://web.archive.org/web/20210419211921/https://www.bipm.org/en/committees/cb/cbkt"> Knowledge transfer (CBKT) </a> </li> <li class=" nav-item"> <a class="dropdown-item" href="https://web.archive.org/web/20210419211921/https://www.bipm.org/en/cgpm-2018"> CGPM (2018) </a> </li> <li class=" nav-item"> <a class="dropdown-item" href="https://web.archive.org/web/20210419211921/https://www.bipm.org/en/external-events"> External events </a> </li> <li class=" nav-item"> <a class="dropdown-item" href="https://web.archive.org/web/20210419211921/http://www.worldmetrologyday.org/" data-senna-off="true"> World Metrology Day </a> </li> </ul> </div> </div> </div> </li> </ul> </div> <script type="text/javascript"> // <![CDATA[ AUI().use('liferay-navigation-interaction', function(A) {(function() {var $ = AUI.$;var _ = AUI._; var navigation = A.one('#navbar_com_liferay_site_navigation_menu_web_portlet_SiteNavigationMenuPortlet_INSTANCE_BipmMainMenuNavigation'); Liferay.Data.NAV_INTERACTION_LIST_SELECTOR = '.navbar-nav'; Liferay.Data.NAV_LIST_SELECTOR = '.navbar-nav'; if (navigation) { navigation.plug(Liferay.NavigationInteraction); } })();}); // ]]> </script> </div> </div> </div> </section> </div> <ul class="nav-metrology-sticky main-nav__metrology-sticky metrology-areas-header" id="img-metrology-sticky"> <li class="dropdown"> <a href="#" class="nav-metrology-sticky__link"> <div class="nav-metrology-sticky__link-picto"></div> </a> <div id="second-nav-metrology-sticky" class="dropdown-menu"> <p class="nav-metrology-sticky__title">Metrology areas</p> <div class="portlet-boundary portlet-boundary_com_liferay_site_navigation_menu_web_portlet_SiteNavigationMenuPortlet_ portlet-static portlet-static-end portlet-barebone portlet-navigation " id="p_p_id_com_liferay_site_navigation_menu_web_portlet_SiteNavigationMenuPortlet_INSTANCE_navigation_metrology_"> <span id="p_com_liferay_site_navigation_menu_web_portlet_SiteNavigationMenuPortlet_INSTANCE_navigation_metrology"></span> <section class="portlet" id="portlet_com_liferay_site_navigation_menu_web_portlet_SiteNavigationMenuPortlet_INSTANCE_navigation_metrology"> <div class="portlet-content"> <div class=" portlet-content-container"> <div class="portlet-body"> <div id="navbar_com_liferay_site_navigation_menu_web_portlet_SiteNavigationMenuPortlet_INSTANCE_navigation_metrology"> <ul aria-label="Site Pages" class="nav nav-pills nav-stacked navbar-site" role="menubar"> <li class="lfr-nav-item nav-item dropdown" id="layout_58839" role="presentation"> <a aria-labelledby="layout_58839" aria-haspopup="true" class="nav-link text-truncate dropdown-toggle" href="https://web.archive.org/web/20210419211921/https://www.bipm.org/en/metrology/auv" role="menuitem"> <span class="text-truncate"> AUV: Acoustics, Ultrasound and Vibrations <span class="lfr-nav-child-toggle"><i class="icon-caret-down"></i></span></span> </a> <ul aria-expanded="false" class="child-menu dropdown-menu" role="menu"> <li class="" id="layout_2437202" role="presentation"> <a aria-labelledby="layout_2437202" class="dropdown-item" href="https://web.archive.org/web/20210419211921/https://www.bipm.org/en/committees/cc/ccauv" role="menuitem">Committee structure: CCAUV</a> </li> <li class="" id="layout_855483" role="presentation"> <a aria-labelledby="layout_855483" class="dropdown-item" href="https://web.archive.org/web/20210419211921/https://www.bipm.org/en/people?userId=3340064" role="menuitem">BIPM contact: Dr Gianna Panfilo</a> </li> </ul> </li> <li class="lfr-nav-item nav-item dropdown" id="layout_58843" role="presentation"> <a aria-labelledby="layout_58843" aria-haspopup="true" class="nav-link text-truncate dropdown-toggle" href="https://web.archive.org/web/20210419211921/https://www.bipm.org/en/metrology/em" role="menuitem"> <span class="text-truncate"> EM : Electricity and Magnetism <span class="lfr-nav-child-toggle"><i class="icon-caret-down"></i></span></span> </a> <ul aria-expanded="false" class="child-menu dropdown-menu" role="menu"> <li class="" id="layout_909722" role="presentation"> <a aria-labelledby="layout_909722" class="dropdown-item" href="https://web.archive.org/web/20210419211921/https://iopscience.iop.org/journal/0026-1394/page/Focus_on_Electrical_Metrology" role="menuitem">Metrologia: Focus on Metrology in Electricity and Magnetism</a> </li> <li class="" id="layout_2437203" role="presentation"> <a aria-labelledby="layout_2437203" class="dropdown-item" href="https://web.archive.org/web/20210419211921/https://www.bipm.org/en/committees/cc/ccem" role="menuitem">Committee structure: CCEM</a> </li> <li class="" id="layout_855484" role="presentation"> <a aria-labelledby="layout_855484" class="dropdown-item" href="https://web.archive.org/web/20210419211921/https://www.bipm.org/en/people?userId=38861" role="menuitem">BIPM contact: Dr Michael Stock</a> </li> </ul> </li> <li class="lfr-nav-item nav-item dropdown" id="layout_58847" role="presentation"> <a aria-labelledby="layout_58847" aria-haspopup="true" class="nav-link text-truncate dropdown-toggle" href="https://web.archive.org/web/20210419211921/https://www.bipm.org/en/metrology/l" role="menuitem"> <span class="text-truncate"> L: Length <span class="lfr-nav-child-toggle"><i class="icon-caret-down"></i></span></span> </a> <ul aria-expanded="false" class="child-menu dropdown-menu" role="menu"> <li class="" id="layout_2437205" role="presentation"> <a aria-labelledby="layout_2437205" class="dropdown-item" href="https://web.archive.org/web/20210419211921/https://www.bipm.org/en/committees/cc/ccl" role="menuitem">Committee structure: CCL</a> </li> <li class="" id="layout_855496" role="presentation"> <a aria-labelledby="layout_855496" class="dropdown-item" href="https://web.archive.org/web/20210419211921/https://www.bipm.org/people?userId=3340064" role="menuitem">BIPM contact: Dr Gianna Panfilo</a> </li> </ul> </li> <li class="lfr-nav-item nav-item dropdown" id="layout_58851" role="presentation"> <a aria-labelledby="layout_58851" aria-haspopup="true" class="nav-link text-truncate dropdown-toggle" href="https://web.archive.org/web/20210419211921/https://www.bipm.org/en/metrology/m" role="menuitem"> <span class="text-truncate"> M: Mass and related quantities <span class="lfr-nav-child-toggle"><i class="icon-caret-down"></i></span></span> </a> <ul aria-expanded="false" class="child-menu dropdown-menu" role="menu"> <li class="" id="layout_2437206" role="presentation"> <a aria-labelledby="layout_2437206" class="dropdown-item" href="https://web.archive.org/web/20210419211921/https://www.bipm.org/en/committees/cc/ccm" role="menuitem">Committee structure: CCM</a> </li> <li class="" id="layout_909868" role="presentation"> <a aria-labelledby="layout_909868" class="dropdown-item" href="https://web.archive.org/web/20210419211921/https://www.bipm.orgliferay.bipm.org:8080/people?userId=663416" role="menuitem">BIPM contact: Dr Hao Fang</a> </li> </ul> </li> <li class="lfr-nav-item nav-item" id="layout_58855" role="presentation"> <a aria-labelledby="layout_58855" class="nav-link text-truncate" href="https://web.archive.org/web/20210419211921/https://www.bipm.org/en/metrology/pr" role="menuitem"> <span class="text-truncate"> PR: Photometry and Radiometry </span> </a> </li> <li class="lfr-nav-item nav-item dropdown" id="layout_58859" role="presentation"> <a aria-labelledby="layout_58859" aria-haspopup="true" class="nav-link text-truncate dropdown-toggle" href="https://web.archive.org/web/20210419211921/https://www.bipm.org/en/metrology/qm" role="menuitem"> <span class="text-truncate"> QM: Chemistry and Biology <span class="lfr-nav-child-toggle"><i class="icon-caret-down"></i></span></span> </a> <ul aria-expanded="false" class="child-menu dropdown-menu" role="menu"> <li class="" id="layout_2437010" role="presentation"> <a aria-labelledby="layout_2437010" class="dropdown-item" href="https://web.archive.org/web/20210419211921/https://www.bipm.org/en/people" role="menuitem">BIPM contact</a> </li> </ul> </li> <li class="lfr-nav-item nav-item" id="layout_58863" role="presentation"> <a aria-labelledby="layout_58863" class="nav-link text-truncate" href="https://web.archive.org/web/20210419211921/https://www.bipm.org/en/metrology/ri" role="menuitem"> <span class="text-truncate"> RI: Ionizing radiation </span> </a> </li> <li class="lfr-nav-item nav-item" id="layout_58867" role="presentation"> <a aria-labelledby="layout_58867" class="nav-link text-truncate" href="https://web.archive.org/web/20210419211921/https://www.bipm.org/en/metrology/t" role="menuitem"> <span class="text-truncate"> T: Thermometry </span> </a> </li> <li class="lfr-nav-item nav-item dropdown" id="layout_58871" role="presentation"> <a aria-labelledby="layout_58871" aria-haspopup="true" class="nav-link text-truncate dropdown-toggle" href="https://web.archive.org/web/20210419211921/https://www.bipm.org/en/metrology/tf" role="menuitem"> <span class="text-truncate"> TF: Time and Frequency <span class="lfr-nav-child-toggle"><i class="icon-caret-down"></i></span></span> </a> <ul aria-expanded="false" class="child-menu dropdown-menu" role="menu"> <li class="" id="layout_2437208" role="presentation"> <a aria-labelledby="layout_2437208" class="dropdown-item" href="https://web.archive.org/web/20210419211921/https://www.bipm.org/en/committees/cc/cctf" role="menuitem">Committee structure: CCTF</a> </li> <li class="" id="layout_855629" role="presentation"> <a aria-labelledby="layout_855629" class="dropdown-item" href="https://web.archive.org/web/20210419211921/http://webtai.bipm.org/database/" role="menuitem">BIPM Time Department Database</a> </li> <li class="" id="layout_855487" role="presentation"> <a aria-labelledby="layout_855487" class="dropdown-item" href="https://web.archive.org/web/20210419211921/https://www.bipm.org/en/time-ftp" role="menuitem">Time FTP Server</a> </li> <li class="" id="layout_855502" role="presentation"> <a aria-labelledby="layout_855502" class="dropdown-item" href="https://web.archive.org/web/20210419211921/https://www.bipm.org/en/people?userId=654446" role="menuitem">BIPM contact: Dr Patrizia Tavella</a> </li> </ul> </li> <li class="lfr-nav-item nav-item dropdown" id="layout_58875" role="presentation"> <a aria-labelledby="layout_58875" aria-haspopup="true" class="nav-link text-truncate dropdown-toggle" href="https://web.archive.org/web/20210419211921/https://www.bipm.org/en/metrology/u" role="menuitem"> <span class="text-truncate"> U: The SI (International System of Units) <span class="lfr-nav-child-toggle"><i class="icon-caret-down"></i></span></span> </a> <ul aria-expanded="false" class="child-menu dropdown-menu" role="menu"> <li class="" id="layout_2437207" role="presentation"> <a aria-labelledby="layout_2437207" class="dropdown-item" href="https://web.archive.org/web/20210419211921/https://www.bipm.org/en/committees/cc/ccu" role="menuitem">Committee structure: CCU</a> </li> </ul> </li> </ul> </div> <script type="text/javascript"> // <![CDATA[ AUI().use('liferay-navigation-interaction', function(A) {(function() {var $ = AUI.$;var _ = AUI._; var navigation = A.one('#navbar_com_liferay_site_navigation_menu_web_portlet_SiteNavigationMenuPortlet_INSTANCE_navigation_metrology'); Liferay.Data.NAV_INTERACTION_LIST_SELECTOR = '.navbar-site'; Liferay.Data.NAV_LIST_SELECTOR = '.navbar-site'; if (navigation) { navigation.plug(Liferay.NavigationInteraction); } })();}); // ]]> </script> </div> </div> </div> </section> </div> </div> </li> </ul> <div class="nav-search main-nav__search"> <a href="/web/20210419211921/https://www.bipm.org/search" class="nav-search__link"> <div class="nav-search__link-picto"></div> </a> </div> <div class="navbar-collapse__footer"> <ul class="navbar-collapse__footer-list"> <li class="navbar-collapse__footer-item metrology-areas-header"> <button data-toggle="modal" data-target="#second-nav-metrology"> <img class="navbar-collapse__footer-picto navbar-collapse__footer-picto--white" src="https://web.archive.org/web/20210419211921im_/https://www.bipm.org/o/bipm-theme/images/picto/picto-metrology-white.svg"> <p class="navbar-collapse__footer-content">Metrology areas</p> </button> </li> <li class="navbar-collapse__footer-item quick-links-header"> <button data-toggle="modal" data-target="#second-nav-quicklinks"> <img class="navbar-collapse__footer-picto navbar-collapse__footer-picto--white" src="https://web.archive.org/web/20210419211921im_/https://www.bipm.org/o/bipm-theme/images/picto/picto-links-white.svg"/> <p class="navbar-collapse__footer-content">Quick links</p> </button> </li> </ul> </div> </div> </nav> </div> <div class="modal fade modal-full modal-sign-in" id="second-nav-sign-in" tabindex="-1" role="dialog" aria-hidden="true"> <div class="modal-dialog modal-full__dialog modal-sign-in__dialog" role="document"> <div class="modal-content modal-full__content modal-sign-in__content"> <div class="container"> <div class="row"> <div class="col-12 col-lg-2"> <button type="button" class="close modal-full__close" data-dismiss="modal" aria-label="Close"> <img src="https://web.archive.org/web/20210419211921im_/https://www.bipm.org/o/bipm-theme/images/picto/picto-close.svg"/> </button> </div> <div class="col-12 col-lg-10"> <div id="secondary-nav" class="header-second-nav"> <ul class="header-second-nav__list"> <li class="header-second-nav__items header-second-nav__items--connexion connexion"> <div class="sign-in-header" data-dismiss="modal" data-toggle="modal" data-target="#second-nav-sign-in"> <p class="header-second-nav__content">Sign in</p> <div class="header-second-nav__picto"></div> </div> </li> <li class="header-second-nav__items header-second-nav__items--metrology metrology-areas-header" data-dismiss="modal" data-toggle="modal" data-target="#second-nav-metrology"> <p class="header-second-nav__content">Metrology areas</p> <div class="header-second-nav__picto"></div> </li> <li class="header-second-nav__items header-second-nav__items--quicks quick-links-header" data-dismiss="modal" data-toggle="modal" data-target="#second-nav-quicklinks"> <p class="header-second-nav__content">Quick links</p> <div class="header-second-nav__picto"></div> </li> <li class="header-second-nav__items header-second-nav__items--languages languages-header"> <div class="portlet-boundary portlet-boundary_com_liferay_site_navigation_language_web_portlet_SiteNavigationLanguagePortlet_ portlet-static portlet-static-end decorate portlet-language " id="p_p_id_com_liferay_site_navigation_language_web_portlet_SiteNavigationLanguagePortlet_"> <span id="p_com_liferay_site_navigation_language_web_portlet_SiteNavigationLanguagePortlet"></span> <section class="portlet" id="portlet_com_liferay_site_navigation_language_web_portlet_SiteNavigationLanguagePortlet"> <div class="portlet-content"> <div class="autofit-float autofit-row portlet-header"> <div class="autofit-col autofit-col-expand"> <h2 class="portlet-title-text">Language Selector</h2> </div> </div> <div class=" portlet-content-container"> <div class="portlet-body"> <style> .language-entry-long-text { display: inline-block; padding: 0 0.5em; } </style> <a href="/web/20210419211921/https://www.bipm.org/en/c/portal/update_language?p_l_id=41483279&redirect=%2Fen%2Fpublications%2Fsi-brochure&languageId=fr_FR" class="language-entry-long-text" lang="fr-FR">français</a> </div> </div> </div> </section> </div> </li> </ul> </div> </div> </div> </div> <div class="modal-body modal-sign-in__body modal-full__body"> <div class="container"> <p class="modal-full__title">Sign in</p> <div class="portlet-boundary portlet-boundary_com_liferay_login_web_portlet_LoginPortlet_ portlet-static portlet-static-end decorate portlet-login " id="p_p_id_com_liferay_login_web_portlet_LoginPortlet_"> <span id="p_com_liferay_login_web_portlet_LoginPortlet"></span> <section class="portlet" id="portlet_com_liferay_login_web_portlet_LoginPortlet"> <div class="portlet-content"> <div class="autofit-float autofit-row portlet-header"> <div class="autofit-col autofit-col-expand"> <h2 class="portlet-title-text">Sign In</h2> </div> </div> <div class=" portlet-content-container"> <div class="portlet-body"> <div class="login-container"> <form action="https://web.archive.org/web/20210419211921/https://www.bipm.org/en/publications/si-brochure?p_p_id=com_liferay_login_web_portlet_LoginPortlet&p_p_lifecycle=1&p_p_state=normal&p_p_mode=view&_com_liferay_login_web_portlet_LoginPortlet_javax.portlet.action=%2Flogin%2Flogin&_com_liferay_login_web_portlet_LoginPortlet_mvcRenderCommandName=%2Flogin%2Flogin" class="form sign-in-form " data-fm-namespace="_com_liferay_login_web_portlet_LoginPortlet_" id="_com_liferay_login_web_portlet_LoginPortlet_loginForm" method="post" name="_com_liferay_login_web_portlet_LoginPortlet_loginForm" autocomplete="on"> <fieldset class="input-container" disabled="disabled"> <input class="field form-control" id="_com_liferay_login_web_portlet_LoginPortlet_formDate" name="_com_liferay_login_web_portlet_LoginPortlet_formDate" type="hidden" value="1618864808859"/> <input class="field form-control" id="_com_liferay_login_web_portlet_LoginPortlet_saveLastPath" name="_com_liferay_login_web_portlet_LoginPortlet_saveLastPath" type="hidden" value="false"/> <input class="field form-control" id="_com_liferay_login_web_portlet_LoginPortlet_redirect" name="_com_liferay_login_web_portlet_LoginPortlet_redirect" type="hidden" value=""/> <input class="field form-control" id="_com_liferay_login_web_portlet_LoginPortlet_doActionAfterLogin" name="_com_liferay_login_web_portlet_LoginPortlet_doActionAfterLogin" type="hidden" value="false"/> <div class="inline-alert-container lfr-alert-container"></div> <fieldset class="fieldset "><div class=""> <div class="form-group input-text-wrapper"> <label class="control-label" for="_com_liferay_login_web_portlet_LoginPortlet_login"> Email Address </label> <input class="field clearable form-control" id="_com_liferay_login_web_portlet_LoginPortlet_login" name="_com_liferay_login_web_portlet_LoginPortlet_login" type="text" value=""/> </div> <div class="form-group input-text-wrapper"> <label class="control-label" for="_com_liferay_login_web_portlet_LoginPortlet_password"> Password </label> <input class="field form-control" id="_com_liferay_login_web_portlet_LoginPortlet_password" name="_com_liferay_login_web_portlet_LoginPortlet_password" type="password" value=""/> </div> <span id="_com_liferay_login_web_portlet_LoginPortlet_passwordCapsLockSpan" style="display: none;">Caps Lock is on.</span> </div></fieldset> <div class="button-holder "> <button class="btn btn-primary btn-default" id="_com_liferay_login_web_portlet_LoginPortlet_kwuu" type="submit"> <span class="lfr-btn-label">Sign In</span> </button> </div> </fieldset> </form> <script type="text/javascript"> // <![CDATA[ AUI().use('liferay-form', function(A) {(function() {var $ = AUI.$;var _ = AUI._; Liferay.Form.register( { id: '_com_liferay_login_web_portlet_LoginPortlet_loginForm' , fieldRules: [ { body: '', custom: false, errorMessage: '', fieldName: '_com_liferay_login_web_portlet_LoginPortlet_password', validatorName: 'required' } , { body: '', custom: false, errorMessage: '', fieldName: '_com_liferay_login_web_portlet_LoginPortlet_login', validatorName: 'required' } ] , onSubmit: function(event) { event.preventDefault(); } , validateOnBlur: false } ); var onDestroyPortlet = function(event) { if (event.portletId === 'com_liferay_login_web_portlet_LoginPortlet') { delete Liferay.Form._INSTANCES['_com_liferay_login_web_portlet_LoginPortlet_loginForm']; } }; Liferay.on('destroyPortlet', onDestroyPortlet); A.all('#_com_liferay_login_web_portlet_LoginPortlet_loginForm .input-container').removeAttribute('disabled'); Liferay.fire( '_com_liferay_login_web_portlet_LoginPortlet_formReady', { formName: '_com_liferay_login_web_portlet_LoginPortlet_loginForm' } ); })();}); // ]]> </script> <div class="navigation"> <span class=""> <a href="https://web.archive.org/web/20210419211921/https://www.bipm.org/en/publications/si-brochure?p_p_id=com_liferay_login_web_portlet_LoginPortlet&p_p_lifecycle=0&p_p_state=maximized&p_p_mode=view&_com_liferay_login_web_portlet_LoginPortlet_mvcRenderCommandName=%2Flogin%2Fforgot_password" target="_self" class=" lfr-icon-item taglib-icon" id="_com_liferay_login_web_portlet_LoginPortlet_ctvk____"> <i class="icon-question-sign"></i> <span class="taglib-text ">Password forgotten</span> </a> </span> </div> </div> <script type="text/javascript"> // <![CDATA[ (function() {var $ = AUI.$;var _ = AUI._; var form = document.getElementById('_com_liferay_login_web_portlet_LoginPortlet_loginForm'); if (form) { form.addEventListener( 'submit', function(event) { submitForm(form); } ); var password = form.querySelector('#_com_liferay_login_web_portlet_LoginPortlet_password'); if (password) { password.addEventListener( 'keypress', function(event) { Liferay.Util.showCapsLock(event, '_com_liferay_login_web_portlet_LoginPortlet_passwordCapsLockSpan'); } ); } } })(); // ]]> </script> </div> </div> </div> </section> </div> </div> </div> </div> </div> </div> <div class="modal fade modal-full modal-metrology" id="second-nav-metrology" tabindex="-1" role="dialog" aria-hidden="true"> <div class="modal-dialog modal-full__dialog" role="document"> <div class="modal-content modal-full__content"> <div class="container"> <div class="row"> <div class="col-12 col-lg-2"> <button type="button" class="close modal-full__close" data-dismiss="modal" aria-label="Close"> <img src="https://web.archive.org/web/20210419211921im_/https://www.bipm.org/o/bipm-theme/images/picto/picto-close.svg"/> </button> </div> <div class="col-12 col-lg-10"> <div id="secondary-nav" class="header-second-nav"> <ul class="header-second-nav__list"> <li class="header-second-nav__items header-second-nav__items--connexion connexion"> <div class="sign-in-header" data-dismiss="modal" data-toggle="modal" data-target="#second-nav-sign-in"> <p class="header-second-nav__content">Sign in</p> <div class="header-second-nav__picto"></div> </div> </li> <li class="header-second-nav__items header-second-nav__items--metrology metrology-areas-header" data-dismiss="modal" data-toggle="modal" data-target="#second-nav-metrology"> <p class="header-second-nav__content">Metrology areas</p> <div class="header-second-nav__picto"></div> </li> <li class="header-second-nav__items header-second-nav__items--quicks quick-links-header" data-dismiss="modal" data-toggle="modal" data-target="#second-nav-quicklinks"> <p class="header-second-nav__content">Quick links</p> <div class="header-second-nav__picto"></div> </li> <li class="header-second-nav__items header-second-nav__items--languages languages-header"> <div class="portlet-boundary portlet-boundary_com_liferay_site_navigation_language_web_portlet_SiteNavigationLanguagePortlet_ portlet-static portlet-static-end decorate portlet-language " id="p_p_id_com_liferay_site_navigation_language_web_portlet_SiteNavigationLanguagePortlet_"> <span id="p_com_liferay_site_navigation_language_web_portlet_SiteNavigationLanguagePortlet"></span> <section class="portlet" id="portlet_com_liferay_site_navigation_language_web_portlet_SiteNavigationLanguagePortlet"> <div class="portlet-content"> <div class="autofit-float autofit-row portlet-header"> <div class="autofit-col autofit-col-expand"> <h2 class="portlet-title-text">Language Selector</h2> </div> </div> <div class=" portlet-content-container"> <div class="portlet-body"> <style> .language-entry-long-text { display: inline-block; padding: 0 0.5em; } </style> <a href="/web/20210419211921/https://www.bipm.org/en/c/portal/update_language?p_l_id=41483279&redirect=%2Fen%2Fpublications%2Fsi-brochure&languageId=fr_FR" class="language-entry-long-text" lang="fr-FR">français</a> </div> </div> </div> </section> </div> </li> </ul> </div> </div> </div> </div> <div class="modal-body modal-full__body modal-metrology__body"> <div class="container"> <p class="modal-full__title">Metrology areas</p> <div class="portlet-boundary portlet-boundary_com_liferay_site_navigation_menu_web_portlet_SiteNavigationMenuPortlet_ portlet-static portlet-static-end portlet-barebone portlet-navigation " id="p_p_id_com_liferay_site_navigation_menu_web_portlet_SiteNavigationMenuPortlet_INSTANCE_navigation_metrology_"> <span id="p_com_liferay_site_navigation_menu_web_portlet_SiteNavigationMenuPortlet_INSTANCE_navigation_metrology"></span> <section class="portlet" id="portlet_com_liferay_site_navigation_menu_web_portlet_SiteNavigationMenuPortlet_INSTANCE_navigation_metrology"> <div class="portlet-content"> <div class=" portlet-content-container"> <div class="portlet-body"> <div id="navbar_com_liferay_site_navigation_menu_web_portlet_SiteNavigationMenuPortlet_INSTANCE_navigation_metrology"> <ul aria-label="Site Pages" class="nav nav-pills nav-stacked navbar-site" role="menubar"> <li class="lfr-nav-item nav-item dropdown" id="layout_58839" role="presentation"> <a aria-labelledby="layout_58839" aria-haspopup="true" class="nav-link text-truncate dropdown-toggle" href="https://web.archive.org/web/20210419211921/https://www.bipm.org/en/metrology/auv" role="menuitem"> <span class="text-truncate"> AUV: Acoustics, Ultrasound and Vibrations <span class="lfr-nav-child-toggle"><i class="icon-caret-down"></i></span></span> </a> <ul aria-expanded="false" class="child-menu dropdown-menu" role="menu"> <li class="" id="layout_2437202" role="presentation"> <a aria-labelledby="layout_2437202" class="dropdown-item" href="https://web.archive.org/web/20210419211921/https://www.bipm.org/en/committees/cc/ccauv" role="menuitem">Committee structure: CCAUV</a> </li> <li class="" id="layout_855483" role="presentation"> <a aria-labelledby="layout_855483" class="dropdown-item" href="https://web.archive.org/web/20210419211921/https://www.bipm.org/en/people?userId=3340064" role="menuitem">BIPM contact: Dr Gianna Panfilo</a> </li> </ul> </li> <li class="lfr-nav-item nav-item dropdown" id="layout_58843" role="presentation"> <a aria-labelledby="layout_58843" aria-haspopup="true" class="nav-link text-truncate dropdown-toggle" href="https://web.archive.org/web/20210419211921/https://www.bipm.org/en/metrology/em" role="menuitem"> <span class="text-truncate"> EM : Electricity and Magnetism <span class="lfr-nav-child-toggle"><i class="icon-caret-down"></i></span></span> </a> <ul aria-expanded="false" class="child-menu dropdown-menu" role="menu"> <li class="" id="layout_909722" role="presentation"> <a aria-labelledby="layout_909722" class="dropdown-item" href="https://web.archive.org/web/20210419211921/https://iopscience.iop.org/journal/0026-1394/page/Focus_on_Electrical_Metrology" role="menuitem">Metrologia: Focus on Metrology in Electricity and Magnetism</a> </li> <li class="" id="layout_2437203" role="presentation"> <a aria-labelledby="layout_2437203" class="dropdown-item" href="https://web.archive.org/web/20210419211921/https://www.bipm.org/en/committees/cc/ccem" role="menuitem">Committee structure: CCEM</a> </li> <li class="" id="layout_855484" role="presentation"> <a aria-labelledby="layout_855484" class="dropdown-item" href="https://web.archive.org/web/20210419211921/https://www.bipm.org/en/people?userId=38861" role="menuitem">BIPM contact: Dr Michael Stock</a> </li> </ul> </li> <li class="lfr-nav-item nav-item dropdown" id="layout_58847" role="presentation"> <a aria-labelledby="layout_58847" aria-haspopup="true" class="nav-link text-truncate dropdown-toggle" href="https://web.archive.org/web/20210419211921/https://www.bipm.org/en/metrology/l" role="menuitem"> <span class="text-truncate"> L: Length <span class="lfr-nav-child-toggle"><i class="icon-caret-down"></i></span></span> </a> <ul aria-expanded="false" class="child-menu dropdown-menu" role="menu"> <li class="" id="layout_2437205" role="presentation"> <a aria-labelledby="layout_2437205" class="dropdown-item" href="https://web.archive.org/web/20210419211921/https://www.bipm.org/en/committees/cc/ccl" role="menuitem">Committee structure: CCL</a> </li> <li class="" id="layout_855496" role="presentation"> <a aria-labelledby="layout_855496" class="dropdown-item" href="https://web.archive.org/web/20210419211921/https://www.bipm.org/people?userId=3340064" role="menuitem">BIPM contact: Dr Gianna Panfilo</a> </li> </ul> </li> <li class="lfr-nav-item nav-item dropdown" id="layout_58851" role="presentation"> <a aria-labelledby="layout_58851" aria-haspopup="true" class="nav-link text-truncate dropdown-toggle" href="https://web.archive.org/web/20210419211921/https://www.bipm.org/en/metrology/m" role="menuitem"> <span class="text-truncate"> M: Mass and related quantities <span class="lfr-nav-child-toggle"><i class="icon-caret-down"></i></span></span> </a> <ul aria-expanded="false" class="child-menu dropdown-menu" role="menu"> <li class="" id="layout_2437206" role="presentation"> <a aria-labelledby="layout_2437206" class="dropdown-item" href="https://web.archive.org/web/20210419211921/https://www.bipm.org/en/committees/cc/ccm" role="menuitem">Committee structure: CCM</a> </li> <li class="" id="layout_909868" role="presentation"> <a aria-labelledby="layout_909868" class="dropdown-item" href="https://web.archive.org/web/20210419211921/https://www.bipm.orgliferay.bipm.org:8080/people?userId=663416" role="menuitem">BIPM contact: Dr Hao Fang</a> </li> </ul> </li> <li class="lfr-nav-item nav-item" id="layout_58855" role="presentation"> <a aria-labelledby="layout_58855" class="nav-link text-truncate" href="https://web.archive.org/web/20210419211921/https://www.bipm.org/en/metrology/pr" role="menuitem"> <span class="text-truncate"> PR: Photometry and Radiometry </span> </a> </li> <li class="lfr-nav-item nav-item dropdown" id="layout_58859" role="presentation"> <a aria-labelledby="layout_58859" aria-haspopup="true" class="nav-link text-truncate dropdown-toggle" href="https://web.archive.org/web/20210419211921/https://www.bipm.org/en/metrology/qm" role="menuitem"> <span class="text-truncate"> QM: Chemistry and Biology <span class="lfr-nav-child-toggle"><i class="icon-caret-down"></i></span></span> </a> <ul aria-expanded="false" class="child-menu dropdown-menu" role="menu"> <li class="" id="layout_2437010" role="presentation"> <a aria-labelledby="layout_2437010" class="dropdown-item" href="https://web.archive.org/web/20210419211921/https://www.bipm.org/en/people" role="menuitem">BIPM contact</a> </li> </ul> </li> <li class="lfr-nav-item nav-item" id="layout_58863" role="presentation"> <a aria-labelledby="layout_58863" class="nav-link text-truncate" href="https://web.archive.org/web/20210419211921/https://www.bipm.org/en/metrology/ri" role="menuitem"> <span class="text-truncate"> RI: Ionizing radiation </span> </a> </li> <li class="lfr-nav-item nav-item" id="layout_58867" role="presentation"> <a aria-labelledby="layout_58867" class="nav-link text-truncate" href="https://web.archive.org/web/20210419211921/https://www.bipm.org/en/metrology/t" role="menuitem"> <span class="text-truncate"> T: Thermometry </span> </a> </li> <li class="lfr-nav-item nav-item dropdown" id="layout_58871" role="presentation"> <a aria-labelledby="layout_58871" aria-haspopup="true" class="nav-link text-truncate dropdown-toggle" href="https://web.archive.org/web/20210419211921/https://www.bipm.org/en/metrology/tf" role="menuitem"> <span class="text-truncate"> TF: Time and Frequency <span class="lfr-nav-child-toggle"><i class="icon-caret-down"></i></span></span> </a> <ul aria-expanded="false" class="child-menu dropdown-menu" role="menu"> <li class="" id="layout_2437208" role="presentation"> <a aria-labelledby="layout_2437208" class="dropdown-item" href="https://web.archive.org/web/20210419211921/https://www.bipm.org/en/committees/cc/cctf" role="menuitem">Committee structure: CCTF</a> </li> <li class="" id="layout_855629" role="presentation"> <a aria-labelledby="layout_855629" class="dropdown-item" href="https://web.archive.org/web/20210419211921/http://webtai.bipm.org/database/" role="menuitem">BIPM Time Department Database</a> </li> <li class="" id="layout_855487" role="presentation"> <a aria-labelledby="layout_855487" class="dropdown-item" href="https://web.archive.org/web/20210419211921/https://www.bipm.org/en/time-ftp" role="menuitem">Time FTP Server</a> </li> <li class="" id="layout_855502" role="presentation"> <a aria-labelledby="layout_855502" class="dropdown-item" href="https://web.archive.org/web/20210419211921/https://www.bipm.org/en/people?userId=654446" role="menuitem">BIPM contact: Dr Patrizia Tavella</a> </li> </ul> </li> <li class="lfr-nav-item nav-item dropdown" id="layout_58875" role="presentation"> <a aria-labelledby="layout_58875" aria-haspopup="true" class="nav-link text-truncate dropdown-toggle" href="https://web.archive.org/web/20210419211921/https://www.bipm.org/en/metrology/u" role="menuitem"> <span class="text-truncate"> U: The SI (International System of Units) <span class="lfr-nav-child-toggle"><i class="icon-caret-down"></i></span></span> </a> <ul aria-expanded="false" class="child-menu dropdown-menu" role="menu"> <li class="" id="layout_2437207" role="presentation"> <a aria-labelledby="layout_2437207" class="dropdown-item" href="https://web.archive.org/web/20210419211921/https://www.bipm.org/en/committees/cc/ccu" role="menuitem">Committee structure: CCU</a> </li> </ul> </li> </ul> </div> <script type="text/javascript"> // <![CDATA[ AUI().use('liferay-navigation-interaction', function(A) {(function() {var $ = AUI.$;var _ = AUI._; var navigation = A.one('#navbar_com_liferay_site_navigation_menu_web_portlet_SiteNavigationMenuPortlet_INSTANCE_navigation_metrology'); Liferay.Data.NAV_INTERACTION_LIST_SELECTOR = '.navbar-site'; Liferay.Data.NAV_LIST_SELECTOR = '.navbar-site'; if (navigation) { navigation.plug(Liferay.NavigationInteraction); } })();}); // ]]> </script> </div> </div> </div> </section> </div> </div> </div> </div> </div> </div> <div class="modal fade modal-full modal-quicklinks" id="second-nav-quicklinks" tabindex="-1" role="dialog" aria-hidden="true"> <div class="modal-dialog modal-full__dialog" role="document"> <div class="modal-content modal-full__content"> <div class="container"> <div class="row"> <div class="col-12 col-lg-2"> <button type="button" class="close modal-full__close" data-dismiss="modal" aria-label="Close"> <img src="https://web.archive.org/web/20210419211921im_/https://www.bipm.org/o/bipm-theme/images/picto/picto-close.svg"/> </button> </div> <div class="col-12 col-lg-10"> <div id="secondary-nav" class="header-second-nav"> <ul class="header-second-nav__list"> <li class="header-second-nav__items header-second-nav__items--connexion connexion"> <div class="sign-in-header" data-dismiss="modal" data-toggle="modal" data-target="#second-nav-sign-in"> <p class="header-second-nav__content">Sign in</p> <div class="header-second-nav__picto"></div> </div> </li> <li class="header-second-nav__items header-second-nav__items--metrology metrology-areas-header" data-dismiss="modal" data-toggle="modal" data-target="#second-nav-metrology"> <p class="header-second-nav__content">Metrology areas</p> <div class="header-second-nav__picto"></div> </li> <li class="header-second-nav__items header-second-nav__items--quicks quick-links-header" data-dismiss="modal" data-toggle="modal" data-target="#second-nav-quicklinks"> <p class="header-second-nav__content">Quick links</p> <div class="header-second-nav__picto"></div> </li> <li class="header-second-nav__items header-second-nav__items--languages languages-header"> <div class="portlet-boundary portlet-boundary_com_liferay_site_navigation_language_web_portlet_SiteNavigationLanguagePortlet_ portlet-static portlet-static-end decorate portlet-language " id="p_p_id_com_liferay_site_navigation_language_web_portlet_SiteNavigationLanguagePortlet_"> <span id="p_com_liferay_site_navigation_language_web_portlet_SiteNavigationLanguagePortlet"></span> <section class="portlet" id="portlet_com_liferay_site_navigation_language_web_portlet_SiteNavigationLanguagePortlet"> <div class="portlet-content"> <div class="autofit-float autofit-row portlet-header"> <div class="autofit-col autofit-col-expand"> <h2 class="portlet-title-text">Language Selector</h2> </div> </div> <div class=" portlet-content-container"> <div class="portlet-body"> <style> .language-entry-long-text { display: inline-block; padding: 0 0.5em; } </style> <a href="/web/20210419211921/https://www.bipm.org/en/c/portal/update_language?p_l_id=41483279&redirect=%2Fen%2Fpublications%2Fsi-brochure&languageId=fr_FR" class="language-entry-long-text" lang="fr-FR">français</a> </div> </div> </div> </section> </div> </li> </ul> </div> </div> </div> </div> <div class="modal-body modal-full__body"> <div class="container"> <p class="modal-full__title">Quick links</p> <div class="portlet-boundary portlet-boundary_com_liferay_site_navigation_menu_web_portlet_SiteNavigationMenuPortlet_ portlet-static portlet-static-end portlet-barebone portlet-navigation " id="p_p_id_com_liferay_site_navigation_menu_web_portlet_SiteNavigationMenuPortlet_INSTANCE_navigation_quicklinks_"> <span id="p_com_liferay_site_navigation_menu_web_portlet_SiteNavigationMenuPortlet_INSTANCE_navigation_quicklinks"></span> <section class="portlet" id="portlet_com_liferay_site_navigation_menu_web_portlet_SiteNavigationMenuPortlet_INSTANCE_navigation_quicklinks"> <div class="portlet-content"> <div class=" portlet-content-container"> <div class="portlet-body"> <div id="navbar_com_liferay_site_navigation_menu_web_portlet_SiteNavigationMenuPortlet_INSTANCE_navigation_quicklinks"> <ul aria-label="Site Pages" class="nav nav-pills nav-stacked navbar-site" role="menubar"> <li class="lfr-nav-item nav-item dropdown" id="layout_3033748" role="presentation"> <a aria-labelledby="layout_3033748" aria-haspopup="true" class="nav-link text-truncate dropdown-toggle" role="menuitem"> <span class="text-truncate"> The 2018 revision of the SI <span class="lfr-nav-child-toggle"><i class="icon-caret-down"></i></span></span> </a> <ul aria-expanded="false" class="child-menu dropdown-menu" role="menu"> <li class="" id="layout_3033749" role="presentation"> <a aria-labelledby="layout_3033749" class="dropdown-item" href="https://web.archive.org/web/20210419211921/https://www.youtube.com/watch?v=V7myhT_CwYc&list=PL-vj-3_a7wTDeKEupZSX7Tw42yReNgJLl&index=8&t=0s" role="menuitem">Celebrating the vote by the CGPM</a> </li> <li class="" id="layout_840479" role="presentation"> <a aria-labelledby="layout_840479" class="dropdown-item" href="https://web.archive.org/web/20210419211921/https://www.bipm.org/en/cgpm-2018/" role="menuitem">26th CGPM (November 2018)</a> </li> <li class="" id="layout_3033736" role="presentation"> <a aria-labelledby="layout_3033736" class="dropdown-item" href="https://web.archive.org/web/20210419211921/https://physics.nist.gov/cuu/Constants/index.html" role="menuitem">2018 values of the Fundamental Physical Constants</a> </li> <li class="" id="layout_3033751" role="presentation"> <a aria-labelledby="layout_3033751" class="dropdown-item" href="https://web.archive.org/web/20210419211921/https://www.bipm.org/en/CGPM/db/26/1/" role="menuitem">Resolution 1 of the 26th CGPM (2018)</a> </li> <li class="" id="layout_924415" role="presentation"> <a aria-labelledby="layout_924415" class="dropdown-item" href="https://web.archive.org/web/20210419211921/https://www.bipm.org/en/publications/si-brochure/" role="menuitem">SI Brochure (2019)</a> </li> </ul> </li> <li class="lfr-nav-item nav-item" id="layout_3401007" role="presentation"> <a aria-labelledby="layout_3401007" class="nav-link text-truncate" href="https://web.archive.org/web/20210419211921/http://www.worldmetrologyday.org/" role="menuitem"> <span class="text-truncate"> World Metrology Day </span> </a> </li> <li class="lfr-nav-item nav-item" id="layout_3033738" role="presentation"> <a aria-labelledby="layout_3033738" class="nav-link text-truncate" href="https://web.archive.org/web/20210419211921/https://jcgm.bipm.org/vim/en/index.html" role="menuitem"> <span class="text-truncate"> International Vocabulary of Metrology (VIM) </span> </a> </li> <li class="lfr-nav-item nav-item" id="layout_414019" role="presentation"> <a aria-labelledby="layout_414019" class="nav-link text-truncate" href="https://web.archive.org/web/20210419211921/https://iopscience.iop.org/journal/0026-1394" role="menuitem"> <span class="text-truncate"> Metrologia </span> </a> </li> <li class="lfr-nav-item nav-item" id="layout_3033739" role="presentation"> <a aria-labelledby="layout_3033739" class="nav-link text-truncate" href="https://web.archive.org/web/20210419211921/https://www.bipm.org/en/publications/guides/#gum" role="menuitem"> <span class="text-truncate"> Guide to the Expression of Uncertainty in Measurement </span> </a> </li> <li class="lfr-nav-item nav-item dropdown" id="layout_418284" role="presentation"> <a aria-labelledby="layout_418284" aria-haspopup="true" class="nav-link text-truncate dropdown-toggle" role="menuitem"> <span class="text-truncate"> Autres publications <span class="lfr-nav-child-toggle"><i class="icon-caret-down"></i></span></span> </a> <ul aria-expanded="false" class="child-menu dropdown-menu" role="menu"> <li class="" id="layout_3033741" role="presentation"> <a aria-labelledby="layout_3033741" class="dropdown-item" href="https://web.archive.org/web/20210419211921/https://www.bipm.org/en/worldwide-metrology/cgpm/resolutions.html" role="menuitem">Resolutions of the CGPM</a> </li> <li class="" id="layout_924416" role="presentation"> <a aria-labelledby="layout_924416" class="dropdown-item" href="https://web.archive.org/web/20210419211921/https://www.bipm.org/en/time-ftp" role="menuitem">Time FTP Server</a> </li> </ul> </li> <li class="lfr-nav-item nav-item" id="layout_3033737" role="presentation"> <a aria-labelledby="layout_3033737" class="nav-link text-truncate" href="https://web.archive.org/web/20210419211921/https://www.bipm.org/en/cbkt/" role="menuitem"> <span class="text-truncate"> Capacity Broadening & Knowledge Transfer (CBKT) </span> </a> </li> <li class="lfr-nav-item nav-item dropdown" id="layout_3033740" role="presentation"> <a aria-labelledby="layout_3033740" aria-haspopup="true" class="nav-link text-truncate dropdown-toggle" role="menuitem"> <span class="text-truncate"> NMI Directors and Member State Representatives <span class="lfr-nav-child-toggle"><i class="icon-caret-down"></i></span></span> </a> <ul aria-expanded="false" class="child-menu dropdown-menu" role="menu"> <li class="" id="layout_924417" role="presentation"> <a aria-labelledby="layout_924417" class="dropdown-item" href="https://web.archive.org/web/20210419211921/https://www.bipm.org/en/about-us/" role="menuitem">BIPM strategy document</a> </li> <li class="" id="layout_3033742" role="presentation"> <a aria-labelledby="layout_3033742" class="dropdown-item" href="https://web.archive.org/web/20210419211921/https://www.bipm.org/en/about-us/member-states/" role="menuitem">Toolbox: Benefits and how to participate</a> </li> </ul> </li> <li class="lfr-nav-item nav-item" id="layout_3033743" role="presentation"> <a aria-labelledby="layout_3033743" class="nav-link text-truncate" href="https://web.archive.org/web/20210419211921/https://www.bipm.org/en/committees/jc/jcrb" role="menuitem"> <span class="text-truncate"> Joint Committee of the RMOs and the BIPM (JCRB) </span> </a> </li> <li class="lfr-nav-item nav-item dropdown" id="layout_3117765" role="presentation"> <a aria-labelledby="layout_3117765" aria-haspopup="true" class="nav-link text-truncate dropdown-toggle" role="menuitem"> <span class="text-truncate"> tests <span class="lfr-nav-child-toggle"><i class="icon-caret-down"></i></span></span> </a> <ul aria-expanded="false" class="child-menu dropdown-menu" role="menu"> <li class="" id="layout_3117766" role="presentation"> <a aria-labelledby="layout_3117766" class="dropdown-item" href="https://web.archive.org/web/20210419211921/https://www.bipm.org/fr/about-us/" role="menuitem">Test URL</a> </li> </ul> </li> <li class="lfr-nav-item nav-item" id="layout_3033744" role="presentation"> <a aria-labelledby="layout_3033744" class="nav-link text-truncate" href="https://web.archive.org/web/20210419211921/http://kcdb2.bipm.org:8080/kcdb/" role="menuitem"> <span class="text-truncate"> KCDB </span> </a> </li> </ul> </div> <script type="text/javascript"> // <![CDATA[ AUI().use('liferay-navigation-interaction', function(A) {(function() {var $ = AUI.$;var _ = AUI._; var navigation = A.one('#navbar_com_liferay_site_navigation_menu_web_portlet_SiteNavigationMenuPortlet_INSTANCE_navigation_quicklinks'); Liferay.Data.NAV_INTERACTION_LIST_SELECTOR = '.navbar-site'; Liferay.Data.NAV_LIST_SELECTOR = '.navbar-site'; if (navigation) { navigation.plug(Liferay.NavigationInteraction); } })();}); // ]]> </script> </div> </div> </div> </section> </div> </div> </div> </div> </div> </div> </div> </header> <main id="content"> <div class="container"> <p class="hide-accessible">SI Brochure</p> <div class="columns-1" id="main-content" role="main"> <div class="portlet-layout row"> <div class="col-md-12 portlet-column portlet-column-only" id="column-1"> <div class="portlet-dropzone portlet-column-content portlet-column-content-only" id="layout-column_column-1"> <div class="portlet-boundary portlet-boundary_com_liferay_journal_content_web_portlet_JournalContentPortlet_ portlet-static portlet-static-end decorate portlet-journal-content " id="p_p_id_com_liferay_journal_content_web_portlet_JournalContentPortlet_INSTANCE_uzg9CABotyGz_"> <span id="p_com_liferay_journal_content_web_portlet_JournalContentPortlet_INSTANCE_uzg9CABotyGz"></span> <section class="portlet" id="portlet_com_liferay_journal_content_web_portlet_JournalContentPortlet_INSTANCE_uzg9CABotyGz"> <div class="portlet-content"> <div class="autofit-float autofit-row portlet-header"> <div class="autofit-col autofit-col-expand"> <h2 class="portlet-title-text">SI Brochure - TITLE</h2> </div> <div class="autofit-col autofit-col-end"> <div class="autofit-section"> <div class="visible-interaction"> </div> </div> </div> </div> <div class=" portlet-content-container"> <div class="portlet-body"> <div class="text-right user-tool-asset-addon-entries"> </div> <div class="clearfix journal-content-article" data-analytics-asset-id="41484029" data-analytics-asset-title="SI Brochure - TITLE" data-analytics-asset-type="web-content"> <h1>SI Brochure: The International System of Units (SI)</h1> <center>Note for translators and editors: Details on changes made since May 2019 are available on request to the <a href="javascript:hidden_email('webmaster','bipm.org');">BIPM Webmaster</a>.</center> <i> </i> </div> <div class="content-metadata-asset-addon-entries"> </div> </div> </div> </div> </section> </div> <div class="portlet-boundary portlet-boundary_com_liferay_journal_content_web_portlet_JournalContentPortlet_ portlet-static portlet-static-end decorate portlet-journal-content " id="p_p_id_com_liferay_journal_content_web_portlet_JournalContentPortlet_INSTANCE_ulfU2CmKEG21_"> <span id="p_com_liferay_journal_content_web_portlet_JournalContentPortlet_INSTANCE_ulfU2CmKEG21"></span> <section class="portlet" id="portlet_com_liferay_journal_content_web_portlet_JournalContentPortlet_INSTANCE_ulfU2CmKEG21"> <div class="portlet-content"> <div class="autofit-float autofit-row portlet-header"> <div class="autofit-col autofit-col-expand"> <h2 class="portlet-title-text">Creatives Commons License</h2> </div> <div class="autofit-col autofit-col-end"> <div class="autofit-section"> <div class="visible-interaction"> </div> </div> </div> </div> <div class=" portlet-content-container"> <div class="portlet-body"> <div class="text-right user-tool-asset-addon-entries"> </div> <div class="clearfix journal-content-article" data-analytics-asset-id="44175230" data-analytics-asset-title="Creatives Commons License" data-analytics-asset-type="web-content"> <table> <tbody> <tr> <td bgcolor="#FFCC00"> <center><a href="https://web.archive.org/web/20210419211921/https://creativecommons.org/licenses/by/4.0/" target="_blank"><img alt="CC license conditions" height="30" src="/web/20210419211921im_/https://www.bipm.org/documents/20126/27072194/cc_white.svg/93bf344f-06f2-3a38-b0a6-df0b1d543bff" width="30"/>   <font color="white">Creative Commons Attribution 4.0 International License</font></a></center> </td> </tr> </tbody> </table> <i> </i> </div> <div class="content-metadata-asset-addon-entries"> </div> </div> </div> </div> </section> </div> <div class="portlet-boundary portlet-boundary_com_liferay_asset_publisher_web_portlet_AssetPublisherPortlet_ portlet-static portlet-static-end decorate portlet-asset-publisher " id="p_p_id_com_liferay_asset_publisher_web_portlet_AssetPublisherPortlet_INSTANCE_Uy9C6RxzMDL3_"> <span id="p_com_liferay_asset_publisher_web_portlet_AssetPublisherPortlet_INSTANCE_Uy9C6RxzMDL3"></span> <section class="portlet" id="portlet_com_liferay_asset_publisher_web_portlet_AssetPublisherPortlet_INSTANCE_Uy9C6RxzMDL3"> <div class="portlet-content"> <div class="autofit-float autofit-row portlet-header"> <div class="autofit-col autofit-col-expand"> <h2 class="portlet-title-text">Asset Publisher</h2> </div> </div> <div class=" portlet-content-container"> <div class="portlet-body"> <div class="subscribe-action"> </div> <div class="fvcy__documents_list publications"> <div data-key="" data-session="" data-year="" data-zipfile="" data-nbrpages="" data-meeting="The International System of Units &#150; 9th edition &#150; Complete brochure" data-meetingyear="2019" data-type="" data-coname="SIB" data-cc_name="SI" class="publications__content"> <a class="publication-card_reference title-third" href="https://web.archive.org/web/20210419211921/https://www.bipm.org/documents/20126/41483022/SI-Brochure-9.pdf/fcf090b2-04e6-88cc-1149-c3e029ad8232?version=1.14&download=true"> The International System of Units  9th edition  Complete brochure </a> </div> <div data-key="" data-session="" data-year="" data-zipfile="" data-nbrpages="" data-meeting="Le Système international d'unités &#150; 9<sup>e</sup> édition &#150; Texte en français" data-meetingyear="2019" data-type="" data-coname="BIPM" data-cc_name="" class="publications__content"> <a class="publication-card_reference title-third" href="https://web.archive.org/web/20210419211921/https://www.bipm.org/documents/20126/41483022/SI-Brochure-9-FR.pdf/bb7be5ff-4b2f-3834-f46a-5b4af3669870?version=1.12&download=true"> Le Système international d'unités  9<sup>e</sup> édition  Texte en français </a> </div> <div data-key="" data-session="" data-year="" data-zipfile="" data-nbrpages="" data-meeting="The International System of Units &#150; 9th edition &#150; Text in English" data-meetingyear="2019" data-type="" data-coname="BIPM" data-cc_name="SI" class="publications__content"> <a class="publication-card_reference title-third" href="https://web.archive.org/web/20210419211921/https://www.bipm.org/documents/20126/41483022/SI-Brochure-9-EN.pdf/2d2b50bf-f2b4-9661-f402-5f9d66e4b507?version=1.9&download=true"> The International System of Units  9th edition  Text in English </a> </div> </div> <div id="fvcy__documents_pagination" class="pagination" data-items-size="10"/> </div> </div> </div> </section> </div> <div class="portlet-boundary portlet-boundary_com_liferay_journal_content_web_portlet_JournalContentPortlet_ portlet-static portlet-static-end decorate portlet-journal-content " id="p_p_id_com_liferay_journal_content_web_portlet_JournalContentPortlet_INSTANCE_80no7yag3RMe_"> <span id="p_com_liferay_journal_content_web_portlet_JournalContentPortlet_INSTANCE_80no7yag3RMe"></span> <section class="portlet" id="portlet_com_liferay_journal_content_web_portlet_JournalContentPortlet_INSTANCE_80no7yag3RMe"> <div class="portlet-content"> <div class="autofit-float autofit-row portlet-header"> <div class="autofit-col autofit-col-expand"> <h2 class="portlet-title-text">Appendices</h2> </div> <div class="autofit-col autofit-col-end"> <div class="autofit-section"> <div class="visible-interaction"> </div> </div> </div> </div> <div class=" portlet-content-container"> <div class="portlet-body"> <div class="text-right user-tool-asset-addon-entries"> </div> <div class="clearfix journal-content-article" data-analytics-asset-id="41483991" data-analytics-asset-title="Appendices" data-analytics-asset-type="web-content"> <h2>Appendices</h2> <div class="jzra__documents_list publications"> <div class="publications__content"><a class="publication-card_reference title-third" href="/web/20210419211921/https://www.bipm.org/publications/mises-en-pratique">Appendix 2 – Practical realizations of the definitions of some important units </a></div> </div> <i> </i> </div> <div class="content-metadata-asset-addon-entries"> </div> </div> </div> </div> </section> </div> <div class="portlet-boundary portlet-boundary_com_liferay_asset_publisher_web_portlet_AssetPublisherPortlet_ portlet-static portlet-static-end decorate portlet-asset-publisher " id="p_p_id_com_liferay_asset_publisher_web_portlet_AssetPublisherPortlet_INSTANCE_ANQZTaA0MzIT_"> <span id="p_com_liferay_asset_publisher_web_portlet_AssetPublisherPortlet_INSTANCE_ANQZTaA0MzIT"></span> <section class="portlet" id="portlet_com_liferay_asset_publisher_web_portlet_AssetPublisherPortlet_INSTANCE_ANQZTaA0MzIT"> <div class="portlet-content"> <div class="autofit-float autofit-row portlet-header"> <div class="autofit-col autofit-col-expand"> <h2 class="portlet-title-text">Asset Publisher</h2> </div> </div> <div class=" portlet-content-container"> <div class="portlet-body"> <div class="subscribe-action"> </div> <h3 class="asset-entries-group-label">1</h3> <div class="ydhq__documents_list publications"> <div data-key="" data-session="" data-year="" data-zipfile="" data-nbrpages="" data-meeting="Appendix 1 - Decisions of the CGPM and the CIPM" data-meetingyear="" data-type="" data-coname="" data-cc_name="" class="publications__content"> <a class="publication-card_reference title-third" href="https://web.archive.org/web/20210419211921/https://www.bipm.org/documents/20126/41483022/si-brochure-9-App1-EN.pdf/3f415ca7-130b-7ebb-757a-bf8c0e87d9ce?version=1.5&download=true"> Appendix 1 - Decisions of the CGPM and the CIPM </a> </div> <div data-key="" data-session="" data-year="" data-zipfile="" data-nbrpages="" data-meeting="Annexe 1 - Décisions de la CGPM et du CIPM" data-meetingyear="2019" data-type="" data-coname="" data-cc_name="" class="publications__content"> <a class="publication-card_reference title-third" href="https://web.archive.org/web/20210419211921/https://www.bipm.org/documents/20126/41483022/si-brochure-9-App1-FR.pdf/a641be85-01ce-cc9a-ab7e-822c55d6f3a8?version=1.5&download=true"> Annexe 1 - Décisions de la CGPM et du CIPM </a> </div> </div> <div id="ydhq__documents_pagination" class="pagination" data-items-size="10"/> <h3 class="asset-entries-group-label">3</h3> <div class="znah__documents_list publications"> <div data-session="" data-year="" data-zipfile="" data-nbrpages="" data-meeting="Appendix 3 &#150; Units for photochemical and photobiological quantities" data-meetingyear="2019" data-type="" data-coname="" data-cc_name="" data-key="" class="publications__content"> <a class="publication-card_reference title-third" href="https://web.archive.org/web/20210419211921/https://www.bipm.org/documents/20126/41483022/SI-Brochure-9-App3-EN.pdf/5a878f51-e7c6-9814-c6b8-b94d725b5907?version=1.7&download=true"> Appendix 3  Units for photochemical and photobiological quantities </a> </div> <div data-session="" data-year="" data-zipfile="" data-nbrpages="" data-meeting="Annexe 3 &#150; Unités pour la mesure des grandeurs photochimiques et photobiologiques &#150; Text in French" data-meetingyear="2019" data-type="" data-coname="" data-cc_name="" data-key="" class="publications__content"> <a class="publication-card_reference title-third" href="https://web.archive.org/web/20210419211921/https://www.bipm.org/documents/20126/41483022/SI-Brochure-9-App3-FR.pdf/7a5e0238-f2fb-b641-6c00-0fcfaccb5184?version=1.8&download=true"> Annexe 3  Unités pour la mesure des grandeurs photochimiques et photobiologiques  Text in French </a> </div> </div> <div id="znah__documents_pagination" class="pagination" data-items-size="10"/> <h3 class="asset-entries-group-label">4</h3> <div class="adst__documents_list publications"> <div data-key="" data-session="" data-year="" data-zipfile="" data-nbrpages="" data-meeting="Appendix 4 &#150; Historical notes on the development of the SI and its base units" data-meetingyear="2019" data-type="" data-coname="" data-cc_name="" class="publications__content"> <a class="publication-card_reference title-third" href="https://web.archive.org/web/20210419211921/https://www.bipm.org/documents/20126/41483022/SI-Brochure-9-App4-EN.pdf/a70a759b-979f-ca13-c751-39bcadd013e6?version=1.8&download=true"> Appendix 4  Historical notes on the development of the SI and its base units </a> </div> <div data-key="" data-session="" data-year="" data-zipfile="" data-nbrpages="" data-meeting="Annexe 4 &#150; Notes historiques sur l'évolution du SI et de ses unités de base &#150; Text in French" data-meetingyear="2019" data-type="" data-coname="" data-cc_name="" class="publications__content"> <a class="publication-card_reference title-third" href="https://web.archive.org/web/20210419211921/https://www.bipm.org/documents/20126/41483022/SI-Brochure-9-App4-FR.pdf/d0d3dcbd-e374-1ea5-035c-44b66db61dd7?version=1.6&download=true"> Annexe 4  Notes historiques sur l'évolution du SI et de ses unités de base  Text in French </a> </div> </div> <div id="adst__documents_pagination" class="pagination" data-items-size="10"/> </div> </div> </div> </section> </div> <div class="portlet-boundary portlet-boundary_com_liferay_journal_content_web_portlet_JournalContentPortlet_ portlet-static portlet-static-end decorate portlet-journal-content " id="p_p_id_com_liferay_journal_content_web_portlet_JournalContentPortlet_INSTANCE_4md6nhXT9X3K_"> <span id="p_com_liferay_journal_content_web_portlet_JournalContentPortlet_INSTANCE_4md6nhXT9X3K"></span> <section class="portlet" id="portlet_com_liferay_journal_content_web_portlet_JournalContentPortlet_INSTANCE_4md6nhXT9X3K"> <div class="portlet-content"> <div class="autofit-float autofit-row portlet-header"> <div class="autofit-col autofit-col-expand"> <h2 class="portlet-title-text">Other files - TITLE</h2> </div> <div class="autofit-col autofit-col-end"> <div class="autofit-section"> <div class="visible-interaction"> </div> </div> </div> </div> <div class=" portlet-content-container"> <div class="portlet-body"> <div class="text-right user-tool-asset-addon-entries"> </div> <div class="clearfix journal-content-article" data-analytics-asset-id="41484060" data-analytics-asset-title="Other files - TITLE" data-analytics-asset-type="web-content"> <p> </p> <h3>Additional files</h3> <p> </p> <i> </i> </div> <div class="content-metadata-asset-addon-entries"> </div> </div> </div> </div> </section> </div> <div class="portlet-boundary portlet-boundary_com_liferay_asset_publisher_web_portlet_AssetPublisherPortlet_ portlet-static portlet-static-end decorate portlet-asset-publisher " id="p_p_id_com_liferay_asset_publisher_web_portlet_AssetPublisherPortlet_INSTANCE_5k0AaNkRV0Ho_"> <span id="p_com_liferay_asset_publisher_web_portlet_AssetPublisherPortlet_INSTANCE_5k0AaNkRV0Ho"></span> <section class="portlet" id="portlet_com_liferay_asset_publisher_web_portlet_AssetPublisherPortlet_INSTANCE_5k0AaNkRV0Ho"> <div class="portlet-content"> <div class="autofit-float autofit-row portlet-header"> <div class="autofit-col autofit-col-expand"> <h2 class="portlet-title-text">Asset Publisher</h2> </div> </div> <div class=" portlet-content-container"> <div class="portlet-body"> <div class="subscribe-action"> </div> <div class="bipm-documents"> <div class="row filter_list_filter"> </div> <div class="documents_list publications"> <div data-pk="" data-key="" data-author="" data-titre="Questions fréquentes" data-publication="" data-date="2019" data-date_pub="" data-pagination="" data-page="" data-numero="" data-keywords="" data-url="/web/20210419211921oe_/https://www.bipm.org/en/publications/si-brochure" data-dept_name="" data-dept_code="" data-type_code="" data-type_key="" data-metarea_fk="" data-abstract="" class="publications__content"> <a class="publication-card_reference title-third" href="https://web.archive.org/web/20210419211921/https://www.bipm.org/documents/20126/41483022/SI-FAQs-FR.pdf/65240fc0-d66b-9e57-6bd7-365cb6c72f5e?version=1.2&download=true"> Questions fréquentes </a> <p class="publications__body"> 2019 </p> </div> <div data-pk="" data-key="" data-author="" data-titre="Frequently Asked Questions" data-publication="" data-date="2019" data-date_pub="" data-pagination="" data-page="" data-numero="" data-keywords="" data-url="/web/20210419211921oe_/https://www.bipm.org/en/publications/si-brochure" data-dept_name="" data-dept_code="" data-type_code="" data-type_key="" data-metarea_fk="" data-abstract="" class="publications__content"> <a class="publication-card_reference title-third" href="https://web.archive.org/web/20210419211921/https://www.bipm.org/documents/20126/41483022/SI-FAQs-EN.pdf/0e5c4a2b-e3c4-d56e-f646-3f6ffee236be?version=1.2&download=true"> Frequently Asked Questions </a> <p class="publications__body"> 2019 </p> </div> <div data-pk="" data-key="" data-author="" data-titre="Résumé" data-publication="" data-date="2019" data-date_pub="" data-pagination="" data-page="" data-numero="" data-keywords="" data-url="/web/20210419211921oe_/https://www.bipm.org/en/publications/si-brochure" data-dept_name="" data-dept_code="" data-type_code="" data-type_key="" data-metarea_fk="" data-abstract="" class="publications__content"> <a class="publication-card_reference title-third" href="https://web.archive.org/web/20210419211921/https://www.bipm.org/documents/20126/41483022/SI-Brochure-9-concise-FR.pdf/84feb619-c5be-f8e4-ee12-ce82a1584702?version=1.2&download=true"> Résumé </a> <p class="publications__body"> 2019 </p> </div> <div data-pk="" data-key="" data-author="" data-titre="Concise Summary" data-publication="" data-date="2019" data-date_pub="" data-pagination="" data-page="" data-numero="" data-keywords="" data-url="/web/20210419211921oe_/https://www.bipm.org/en/publications/si-brochure" data-dept_name="" data-dept_code="" data-type_code="" data-type_key="" data-metarea_fk="" data-abstract="" class="publications__content"> <a class="publication-card_reference title-third" href="https://web.archive.org/web/20210419211921/https://www.bipm.org/documents/20126/41483022/SI-Brochure-9-concise-EN.pdf/2fda4656-e236-0fcb-3867-36ca74eea4e3?version=1.2&download=true"> Concise Summary </a> <p class="publications__body"> 2019 </p> </div> </div> <div class="pagination documents_pagination" data-items-size="10"/> </div> </div> </div> </div> </section> </div> <div class="portlet-boundary portlet-boundary_com_liferay_journal_content_web_portlet_JournalContentPortlet_ portlet-static portlet-static-end decorate portlet-journal-content " id="p_p_id_com_liferay_journal_content_web_portlet_JournalContentPortlet_INSTANCE_Nb0C6YzXt1jb_"> <span id="p_com_liferay_journal_content_web_portlet_JournalContentPortlet_INSTANCE_Nb0C6YzXt1jb"></span> <section class="portlet" id="portlet_com_liferay_journal_content_web_portlet_JournalContentPortlet_INSTANCE_Nb0C6YzXt1jb"> <div class="portlet-content"> <div class="autofit-float autofit-row portlet-header"> <div class="autofit-col autofit-col-expand"> <h2 class="portlet-title-text">Previous editions - TITLE</h2> </div> <div class="autofit-col autofit-col-end"> <div class="autofit-section"> <div class="visible-interaction"> </div> </div> </div> </div> <div class=" portlet-content-container"> <div class="portlet-body"> <div class="text-right user-tool-asset-addon-entries"> </div> <div class="clearfix journal-content-article" data-analytics-asset-id="41484042" data-analytics-asset-title="Previous editions - TITLE" data-analytics-asset-type="web-content"> <h3>Previous editions of the SI Brochure</h3> <i> </i> </div> <div class="content-metadata-asset-addon-entries"> </div> </div> </div> </div> </section> </div> <div class="portlet-boundary portlet-boundary_com_liferay_asset_publisher_web_portlet_AssetPublisherPortlet_ portlet-static portlet-static-end decorate portlet-asset-publisher " id="p_p_id_com_liferay_asset_publisher_web_portlet_AssetPublisherPortlet_INSTANCE_R2Y1zHkMikvv_"> <span id="p_com_liferay_asset_publisher_web_portlet_AssetPublisherPortlet_INSTANCE_R2Y1zHkMikvv"></span> <section class="portlet" id="portlet_com_liferay_asset_publisher_web_portlet_AssetPublisherPortlet_INSTANCE_R2Y1zHkMikvv"> <div class="portlet-content"> <div class="autofit-float autofit-row portlet-header"> <div class="autofit-col autofit-col-expand"> <h2 class="portlet-title-text">Asset Publisher</h2> </div> </div> <div class=" portlet-content-container"> <div class="portlet-body"> <div class="subscribe-action"> </div> <div class="mtae__documents_list publications"> <div data-key="" data-session="" data-year="" data-zipfile="" data-nbrpages="" data-meeting="8th edition of the SI Brochure (2006)" data-meetingyear="" data-type="" data-coname="BIPM" data-cc_name="" class="publications__content"> <a class="publication-card_reference title-third" href="https://web.archive.org/web/20210419211921/https://www.bipm.org/documents/20126/41483022/si_brochure_8.pdf/632d85cd-cd9f-cfae-21d2-9ffcfc2bb198?version=1.6&download=true"> 8th edition of the SI Brochure (2006) </a> </div> <div data-key="" data-session="" data-year="" data-zipfile="" data-nbrpages="" data-meeting="7th edition of the SI Brochure (1998)" data-meetingyear="" data-type="" data-coname="" data-cc_name="" class="publications__content"> <a class="publication-card_reference title-third" href="https://web.archive.org/web/20210419211921/https://www.bipm.org/documents/20126/41483022/si_brochure_7.pdf/36560ee5-8292-a297-ffe6-cbdf729c22a6?version=1.5&download=true"> 7th edition of the SI Brochure (1998) </a> </div> <div data-key="" data-session="" data-year="" data-zipfile="" data-nbrpages="" data-meeting="6th edition of the SI Brochure (1991)" data-meetingyear="" data-type="" data-coname="" data-cc_name="" class="publications__content"> <a class="publication-card_reference title-third" href="https://web.archive.org/web/20210419211921/https://www.bipm.org/documents/20126/41483022/si_brochure_6.pdf/b8cec0a9-9dc6-ae98-5dc1-f0e81d65ab9d?version=1.5&download=true"> 6th edition of the SI Brochure (1991) </a> </div> <div data-key="" data-session="" data-year="" data-zipfile="" data-nbrpages="" data-meeting="5th edition of the SI Brochure (1985)" data-meetingyear="" data-type="" data-coname="" data-cc_name="" class="publications__content"> <a class="publication-card_reference title-third" href="https://web.archive.org/web/20210419211921/https://www.bipm.org/documents/20126/41483022/si_brochure_5.pdf/9c728fc3-638f-2a8b-8b6d-ce58bd722d3d?version=1.5&download=true"> 5th edition of the SI Brochure (1985) </a> </div> <div data-key="" data-session="" data-year="1981" data-zipfile="" data-nbrpages="" data-meeting="4th edition of the SI Brochure (1981)" data-meetingyear="" data-type="" data-coname="" data-cc_name="" class="publications__content"> <a class="publication-card_reference title-third" href="https://web.archive.org/web/20210419211921/https://www.bipm.org/documents/20126/41483022/si_brochure_4.pdf/18359dee-6c33-fca6-77fc-1d6641ad4f5c?version=1.5&download=true"> 4th edition of the SI Brochure (1981) </a> </div> <div data-key="" data-session="" data-year="" data-zipfile="" data-nbrpages="" data-meeting="3rd edition of the SI Brochure (1977)" data-meetingyear="" data-type="" data-coname="" data-cc_name="" class="publications__content"> <a class="publication-card_reference title-third" href="https://web.archive.org/web/20210419211921/https://www.bipm.org/documents/20126/41483022/si_brochure_3.pdf/9dfc17f6-a8a2-e28a-090f-709e0566577e?version=1.5&download=true"> 3rd edition of the SI Brochure (1977) </a> </div> <div data-key="" data-session="" data-year="1973" data-zipfile="" data-nbrpages="" data-meeting="2nd edition of the SI Brochure (1973)" data-meetingyear="" data-type="" data-coname="" data-cc_name="" class="publications__content"> <a class="publication-card_reference title-third" href="https://web.archive.org/web/20210419211921/https://www.bipm.org/documents/20126/41483022/si_brochure_2.pdf/462361ad-1cb1-95f3-7781-9c64e57c35cd?version=1.5&download=true"> 2nd edition of the SI Brochure (1973) </a> </div> <div data-key="" data-session="" data-year="" data-zipfile="" data-nbrpages="" data-meeting="1st edition of the SI Brochure (1970)" data-meetingyear="" data-type="" data-coname="" data-cc_name="" class="publications__content"> <a class="publication-card_reference title-third" href="https://web.archive.org/web/20210419211921/https://www.bipm.org/documents/20126/41483022/si_brochure_1.pdf/26bf12f9-1da7-e6c2-254b-c50fb978c01b?version=1.5&download=true"> 1st edition of the SI Brochure (1970) </a> </div> </div> <div id="mtae__documents_pagination" class="pagination" data-items-size="10"/> </div> </div> </div> </section> </div> </div> </div> </div> </div> <form action="#" id="hrefFm" method="post" name="hrefFm"><span></span></form> </div> </main> <footer id="footer" class="footer" role="contentinfo"> <div class="container"> <div class="row flex-lg-row-reverse align-items-lg-end"> <div class="col-12 col-lg-9"> <div class="footer-nav"> <div class="portlet-boundary portlet-boundary_com_liferay_site_navigation_menu_web_portlet_SiteNavigationMenuPortlet_ portlet-static portlet-static-end portlet-barebone portlet-navigation " id="p_p_id_com_liferay_site_navigation_menu_web_portlet_SiteNavigationMenuPortlet_INSTANCE_navigation_footer_"> <span id="p_com_liferay_site_navigation_menu_web_portlet_SiteNavigationMenuPortlet_INSTANCE_navigation_footer"></span> <section class="portlet" id="portlet_com_liferay_site_navigation_menu_web_portlet_SiteNavigationMenuPortlet_INSTANCE_navigation_footer"> <div class="portlet-content"> <div class=" portlet-content-container"> <div class="portlet-body"> <div id="navbar_com_liferay_site_navigation_menu_web_portlet_SiteNavigationMenuPortlet_INSTANCE_navigation_footer"> <ul aria-label="Site Pages" class="navbar-blank navbar-nav navbar-site" role="menubar"> <li class="lfr-nav-item nav-item" id="layout_58818" role="presentation"> <a aria-labelledby="layout_58818" class="nav-link text-truncate" href="https://web.archive.org/web/20210419211921/https://www.bipm.org/en/contact" role="menuitem"> <span class="text-truncate"> Contact </span> </a> </li> <li class="lfr-nav-item nav-item" id="layout_58822" role="presentation"> <a aria-labelledby="layout_58822" class="nav-link text-truncate" href="https://web.archive.org/web/20210419211921/https://www.bipm.org/en/access" role="menuitem"> <span class="text-truncate"> Access </span> </a> </li> <li class="lfr-nav-item nav-item" id="layout_51932878" role="presentation"> <a aria-labelledby="layout_51932878" class="nav-link text-truncate" href="https://web.archive.org/web/20210419211921/https://www.bipm.org/en/sitemap" role="menuitem"> <span class="text-truncate"> Sitemap </span> </a> </li> <li class="lfr-nav-item nav-item" id="layout_58830" role="presentation"> <a aria-labelledby="layout_58830" class="nav-link text-truncate" href="https://web.archive.org/web/20210419211921/https://www.bipm.org/en/copyright" role="menuitem"> <span class="text-truncate"> Copyright </span> </a> </li> <li class="lfr-nav-item nav-item" id="layout_58834" role="presentation"> <a aria-labelledby="layout_58834" class="nav-link text-truncate" href="https://web.archive.org/web/20210419211921/https://www.bipm.org/en/confidentiality" role="menuitem"> <span class="text-truncate"> Confidentiality </span> </a> </li> </ul> </div> <script type="text/javascript"> // <![CDATA[ AUI().use('liferay-navigation-interaction', function(A) {(function() {var $ = AUI.$;var _ = AUI._; var navigation = A.one('#navbar_com_liferay_site_navigation_menu_web_portlet_SiteNavigationMenuPortlet_INSTANCE_navigation_footer'); Liferay.Data.NAV_INTERACTION_LIST_SELECTOR = '.navbar-site'; Liferay.Data.NAV_LIST_SELECTOR = '.navbar-site'; if (navigation) { navigation.plug(Liferay.NavigationInteraction); } })();}); // ]]> </script> </div> </div> </div> </section> </div> <div class="footer-nav__quicklinks" data-dismiss="modal" data-toggle="modal" data-target="#second-nav-quicklinks"> <p class="footer-nav__quicklinks-content">Quick links</p> <div class="footer-nav__quicklinks-picto"></div> </div> <div class="footer-nav__language"> <div class="portlet-boundary portlet-boundary_com_liferay_site_navigation_language_web_portlet_SiteNavigationLanguagePortlet_ portlet-static portlet-static-end decorate portlet-language " id="p_p_id_com_liferay_site_navigation_language_web_portlet_SiteNavigationLanguagePortlet_"> <span id="p_com_liferay_site_navigation_language_web_portlet_SiteNavigationLanguagePortlet"></span> <section class="portlet" id="portlet_com_liferay_site_navigation_language_web_portlet_SiteNavigationLanguagePortlet"> <div class="portlet-content"> <div class="autofit-float autofit-row portlet-header"> <div class="autofit-col autofit-col-expand"> <h2 class="portlet-title-text">Language Selector</h2> </div> </div> <div class=" portlet-content-container"> <div class="portlet-body"> <style> .language-entry-long-text { display: inline-block; padding: 0 0.5em; } </style> <a href="/web/20210419211921/https://www.bipm.org/en/c/portal/update_language?p_l_id=41483279&redirect=%2Fen%2Fpublications%2Fsi-brochure&languageId=fr_FR" class="language-entry-long-text" lang="fr-FR">français</a> </div> </div> </div> </section> </div> </div> </div> </div> <div class="col-12 col-lg-3"> <div class="footer-infos"> <h2 class="footer-infos__title"> <img src="https://web.archive.org/web/20210419211921im_/https://www.bipm.org/o/bipm-theme/images/BIPM-logo-name.svg"/> </h2> <p class="footer-infos__address">Pavillon de Breteuil</p> <p class="footer-infos__address">F-92312 Sèvres Cedex FRANCE</p> <p class="footer-infos__copyright">Copyright @ BIPM tous droits réservés</p> </div> </div> </div> </div> </footer> </div> <script type="text/javascript"> // <![CDATA[ Liferay.BrowserSelectors.run(); // ]]> </script> <script type="text/javascript"> // <![CDATA[ Liferay.currentURL = '\x2fen\x2fpublications\x2fsi-brochure'; Liferay.currentURLEncoded = '\x252Fen\x252Fpublications\x252Fsi-brochure'; // ]]> </script> <script type="text/javascript"> // <![CDATA[ // ]]> </script> <script type="text/javascript"> // <![CDATA[ (function() {var $ = AUI.$;var _ = AUI._; var onVote = function(event) { if (window.Analytics) { Analytics.send( 'VOTE', 'Ratings', { className: event.className, classPK: event.classPK, score: event.score } ); } } var onDestroyPortlet = function() { Liferay.detach('ratings:vote', onVote); Liferay.detach('destroyPortlet', onDestroyPortlet); } Liferay.on('ratings:vote', onVote); Liferay.on('destroyPortlet', onDestroyPortlet); })();(function() {var $ = AUI.$;var _ = AUI._; var onShare = function(data) { if (window.Analytics) { Analytics.send( 'shared', 'SocialBookmarks', { className: data.className, classPK: data.classPK, type: data.type, url: data.url } ); } } var onDestroyPortlet = function() { Liferay.detach('socialBookmarks:share', onShare); Liferay.detach('destroyPortlet', onDestroyPortlet); } Liferay.on('socialBookmarks:share', onShare); Liferay.on('destroyPortlet', onDestroyPortlet); })();(function() {var $ = AUI.$;var _ = AUI._; var onDestroyPortlet = function() { Liferay.detach('messagePosted', onMessagePosted); Liferay.detach('destroyPortlet', onDestroyPortlet); } Liferay.on('destroyPortlet', onDestroyPortlet); var onMessagePosted = function(event) { if (window.Analytics) { Analytics.send( 'posted', 'Comment', { className: event.className, classPK: event.classPK, commentId: event.commentId, text: event.text } ); } } Liferay.on('messagePosted', onMessagePosted); })(); if (Liferay.Data.ICONS_INLINE_SVG) { svg4everybody( { attributeName: 'data-href', polyfill: true } ); } Liferay.Portlet.register('com_liferay_journal_content_web_portlet_JournalContentPortlet_INSTANCE_Nb0C6YzXt1jb'); Liferay.Portlet.onLoad( { canEditTitle: false, columnPos: 7, isStatic: 'end', namespacedId: 'p_p_id_com_liferay_journal_content_web_portlet_JournalContentPortlet_INSTANCE_Nb0C6YzXt1jb_', portletId: 'com_liferay_journal_content_web_portlet_JournalContentPortlet_INSTANCE_Nb0C6YzXt1jb', refreshURL: '\x2fen\x2fc\x2fportal\x2frender_portlet\x3fp_l_id\x3d41483279\x26p_p_id\x3dcom_liferay_journal_content_web_portlet_JournalContentPortlet_INSTANCE_Nb0C6YzXt1jb\x26p_p_lifecycle\x3d0\x26p_t_lifecycle\x3d0\x26p_p_state\x3dnormal\x26p_p_mode\x3dview\x26p_p_col_id\x3dcolumn-1\x26p_p_col_pos\x3d7\x26p_p_col_count\x3d9\x26p_p_isolated\x3d1\x26currentURL\x3d\x252Fen\x252Fpublications\x252Fsi-brochure', refreshURLData: {} } ); Liferay.Portlet.register('com_liferay_login_web_portlet_LoginPortlet'); Liferay.Portlet.onLoad( { canEditTitle: false, columnPos: 0, isStatic: 'end', namespacedId: 'p_p_id_com_liferay_login_web_portlet_LoginPortlet_', portletId: 'com_liferay_login_web_portlet_LoginPortlet', refreshURL: '\x2fen\x2fc\x2fportal\x2frender_portlet\x3fp_l_id\x3d41483279\x26p_p_id\x3dcom_liferay_login_web_portlet_LoginPortlet\x26p_p_lifecycle\x3d0\x26p_t_lifecycle\x3d0\x26p_p_state\x3dnormal\x26p_p_mode\x3dview\x26p_p_col_id\x3dnull\x26p_p_col_pos\x3dnull\x26p_p_col_count\x3dnull\x26p_p_static\x3d1\x26p_p_isolated\x3d1\x26currentURL\x3d\x252Fen\x252Fpublications\x252Fsi-brochure\x26settingsScope\x3dportletInstance', refreshURLData: {} } ); Liferay.Portlet.register('com_liferay_journal_content_web_portlet_JournalContentPortlet_INSTANCE_80no7yag3RMe'); Liferay.Portlet.onLoad( { canEditTitle: false, columnPos: 3, isStatic: 'end', namespacedId: 'p_p_id_com_liferay_journal_content_web_portlet_JournalContentPortlet_INSTANCE_80no7yag3RMe_', portletId: 'com_liferay_journal_content_web_portlet_JournalContentPortlet_INSTANCE_80no7yag3RMe', refreshURL: '\x2fen\x2fc\x2fportal\x2frender_portlet\x3fp_l_id\x3d41483279\x26p_p_id\x3dcom_liferay_journal_content_web_portlet_JournalContentPortlet_INSTANCE_80no7yag3RMe\x26p_p_lifecycle\x3d0\x26p_t_lifecycle\x3d0\x26p_p_state\x3dnormal\x26p_p_mode\x3dview\x26p_p_col_id\x3dcolumn-1\x26p_p_col_pos\x3d3\x26p_p_col_count\x3d9\x26p_p_isolated\x3d1\x26currentURL\x3d\x252Fen\x252Fpublications\x252Fsi-brochure', refreshURLData: {} } ); Liferay.Portlet.register('com_liferay_journal_content_web_portlet_JournalContentPortlet_INSTANCE_uzg9CABotyGz'); Liferay.Portlet.onLoad( { canEditTitle: false, columnPos: 0, isStatic: 'end', namespacedId: 'p_p_id_com_liferay_journal_content_web_portlet_JournalContentPortlet_INSTANCE_uzg9CABotyGz_', portletId: 'com_liferay_journal_content_web_portlet_JournalContentPortlet_INSTANCE_uzg9CABotyGz', refreshURL: '\x2fen\x2fc\x2fportal\x2frender_portlet\x3fp_l_id\x3d41483279\x26p_p_id\x3dcom_liferay_journal_content_web_portlet_JournalContentPortlet_INSTANCE_uzg9CABotyGz\x26p_p_lifecycle\x3d0\x26p_t_lifecycle\x3d0\x26p_p_state\x3dnormal\x26p_p_mode\x3dview\x26p_p_col_id\x3dcolumn-1\x26p_p_col_pos\x3d0\x26p_p_col_count\x3d9\x26p_p_isolated\x3d1\x26currentURL\x3d\x252Fen\x252Fpublications\x252Fsi-brochure', refreshURLData: {} } ); Liferay.Portlet.register('com_liferay_site_navigation_menu_web_portlet_SiteNavigationMenuPortlet_INSTANCE_navigation_metrology'); Liferay.Portlet.onLoad( { canEditTitle: false, columnPos: 0, isStatic: 'end', namespacedId: 'p_p_id_com_liferay_site_navigation_menu_web_portlet_SiteNavigationMenuPortlet_INSTANCE_navigation_metrology_', portletId: 'com_liferay_site_navigation_menu_web_portlet_SiteNavigationMenuPortlet_INSTANCE_navigation_metrology', refreshURL: '\x2fen\x2fc\x2fportal\x2frender_portlet\x3fp_l_id\x3d41483279\x26p_p_id\x3dcom_liferay_site_navigation_menu_web_portlet_SiteNavigationMenuPortlet_INSTANCE_navigation_metrology\x26p_p_lifecycle\x3d0\x26p_t_lifecycle\x3d0\x26p_p_state\x3dnormal\x26p_p_mode\x3dview\x26p_p_col_id\x3dnull\x26p_p_col_pos\x3dnull\x26p_p_col_count\x3dnull\x26p_p_static\x3d1\x26p_p_isolated\x3d1\x26currentURL\x3d\x252Fen\x252Fpublications\x252Fsi-brochure\x26settingsScope\x3dportletInstance', refreshURLData: {} } ); Liferay.Portlet.register('com_liferay_site_navigation_menu_web_portlet_SiteNavigationMenuPortlet_INSTANCE_navigation_metrology'); Liferay.Portlet.onLoad( { canEditTitle: false, columnPos: 0, isStatic: 'end', namespacedId: 'p_p_id_com_liferay_site_navigation_menu_web_portlet_SiteNavigationMenuPortlet_INSTANCE_navigation_metrology_', portletId: 'com_liferay_site_navigation_menu_web_portlet_SiteNavigationMenuPortlet_INSTANCE_navigation_metrology', refreshURL: '\x2fen\x2fc\x2fportal\x2frender_portlet\x3fp_l_id\x3d41483279\x26p_p_id\x3dcom_liferay_site_navigation_menu_web_portlet_SiteNavigationMenuPortlet_INSTANCE_navigation_metrology\x26p_p_lifecycle\x3d0\x26p_t_lifecycle\x3d0\x26p_p_state\x3dnormal\x26p_p_mode\x3dview\x26p_p_col_id\x3dnull\x26p_p_col_pos\x3dnull\x26p_p_col_count\x3dnull\x26p_p_static\x3d1\x26p_p_isolated\x3d1\x26currentURL\x3d\x252Fen\x252Fpublications\x252Fsi-brochure\x26settingsScope\x3dportletInstance', refreshURLData: {} } ); Liferay.Portlet.register('com_liferay_asset_publisher_web_portlet_AssetPublisherPortlet_INSTANCE_5k0AaNkRV0Ho'); Liferay.Portlet.onLoad( { canEditTitle: false, columnPos: 6, isStatic: 'end', namespacedId: 'p_p_id_com_liferay_asset_publisher_web_portlet_AssetPublisherPortlet_INSTANCE_5k0AaNkRV0Ho_', portletId: 'com_liferay_asset_publisher_web_portlet_AssetPublisherPortlet_INSTANCE_5k0AaNkRV0Ho', refreshURL: '\x2fen\x2fc\x2fportal\x2frender_portlet\x3fp_l_id\x3d41483279\x26p_p_id\x3dcom_liferay_asset_publisher_web_portlet_AssetPublisherPortlet_INSTANCE_5k0AaNkRV0Ho\x26p_p_lifecycle\x3d0\x26p_t_lifecycle\x3d0\x26p_p_state\x3dnormal\x26p_p_mode\x3dview\x26p_p_col_id\x3dcolumn-1\x26p_p_col_pos\x3d6\x26p_p_col_count\x3d9\x26p_p_isolated\x3d1\x26currentURL\x3d\x252Fen\x252Fpublications\x252Fsi-brochure', refreshURLData: {} } ); Liferay.Portlet.register('com_liferay_site_navigation_menu_web_portlet_SiteNavigationMenuPortlet_INSTANCE_navigation_footer'); Liferay.Portlet.onLoad( { canEditTitle: false, columnPos: 0, isStatic: 'end', namespacedId: 'p_p_id_com_liferay_site_navigation_menu_web_portlet_SiteNavigationMenuPortlet_INSTANCE_navigation_footer_', portletId: 'com_liferay_site_navigation_menu_web_portlet_SiteNavigationMenuPortlet_INSTANCE_navigation_footer', refreshURL: '\x2fen\x2fc\x2fportal\x2frender_portlet\x3fp_l_id\x3d41483279\x26p_p_id\x3dcom_liferay_site_navigation_menu_web_portlet_SiteNavigationMenuPortlet_INSTANCE_navigation_footer\x26p_p_lifecycle\x3d0\x26p_t_lifecycle\x3d0\x26p_p_state\x3dnormal\x26p_p_mode\x3dview\x26p_p_col_id\x3dnull\x26p_p_col_pos\x3dnull\x26p_p_col_count\x3dnull\x26p_p_static\x3d1\x26p_p_isolated\x3d1\x26currentURL\x3d\x252Fen\x252Fpublications\x252Fsi-brochure\x26settingsScope\x3dportletInstance', refreshURLData: {} } ); Liferay.Portlet.register('com_liferay_site_navigation_menu_web_portlet_SiteNavigationMenuPortlet_INSTANCE_BipmMainMenuNavigation'); Liferay.Portlet.onLoad( { canEditTitle: false, columnPos: 0, isStatic: 'end', namespacedId: 'p_p_id_com_liferay_site_navigation_menu_web_portlet_SiteNavigationMenuPortlet_INSTANCE_BipmMainMenuNavigation_', portletId: 'com_liferay_site_navigation_menu_web_portlet_SiteNavigationMenuPortlet_INSTANCE_BipmMainMenuNavigation', refreshURL: '\x2fen\x2fc\x2fportal\x2frender_portlet\x3fp_l_id\x3d41483279\x26p_p_id\x3dcom_liferay_site_navigation_menu_web_portlet_SiteNavigationMenuPortlet_INSTANCE_BipmMainMenuNavigation\x26p_p_lifecycle\x3d0\x26p_t_lifecycle\x3d0\x26p_p_state\x3dnormal\x26p_p_mode\x3dview\x26p_p_col_id\x3dnull\x26p_p_col_pos\x3dnull\x26p_p_col_count\x3dnull\x26p_p_static\x3d1\x26p_p_isolated\x3d1\x26currentURL\x3d\x252Fen\x252Fpublications\x252Fsi-brochure\x26settingsScope\x3dportletInstance', refreshURLData: {} } ); Liferay.Portlet.register('com_liferay_asset_publisher_web_portlet_AssetPublisherPortlet_INSTANCE_ANQZTaA0MzIT'); Liferay.Portlet.onLoad( { canEditTitle: false, columnPos: 4, isStatic: 'end', namespacedId: 'p_p_id_com_liferay_asset_publisher_web_portlet_AssetPublisherPortlet_INSTANCE_ANQZTaA0MzIT_', portletId: 'com_liferay_asset_publisher_web_portlet_AssetPublisherPortlet_INSTANCE_ANQZTaA0MzIT', refreshURL: '\x2fen\x2fc\x2fportal\x2frender_portlet\x3fp_l_id\x3d41483279\x26p_p_id\x3dcom_liferay_asset_publisher_web_portlet_AssetPublisherPortlet_INSTANCE_ANQZTaA0MzIT\x26p_p_lifecycle\x3d0\x26p_t_lifecycle\x3d0\x26p_p_state\x3dnormal\x26p_p_mode\x3dview\x26p_p_col_id\x3dcolumn-1\x26p_p_col_pos\x3d4\x26p_p_col_count\x3d9\x26p_p_isolated\x3d1\x26currentURL\x3d\x252Fen\x252Fpublications\x252Fsi-brochure', refreshURLData: {} } ); Liferay.Portlet.register('com_liferay_asset_publisher_web_portlet_AssetPublisherPortlet_INSTANCE_R2Y1zHkMikvv'); Liferay.Portlet.onLoad( { canEditTitle: false, columnPos: 8, isStatic: 'end', namespacedId: 'p_p_id_com_liferay_asset_publisher_web_portlet_AssetPublisherPortlet_INSTANCE_R2Y1zHkMikvv_', portletId: 'com_liferay_asset_publisher_web_portlet_AssetPublisherPortlet_INSTANCE_R2Y1zHkMikvv', refreshURL: '\x2fen\x2fc\x2fportal\x2frender_portlet\x3fp_l_id\x3d41483279\x26p_p_id\x3dcom_liferay_asset_publisher_web_portlet_AssetPublisherPortlet_INSTANCE_R2Y1zHkMikvv\x26p_p_lifecycle\x3d0\x26p_t_lifecycle\x3d0\x26p_p_state\x3dnormal\x26p_p_mode\x3dview\x26p_p_col_id\x3dcolumn-1\x26p_p_col_pos\x3d8\x26p_p_col_count\x3d9\x26p_p_isolated\x3d1\x26currentURL\x3d\x252Fen\x252Fpublications\x252Fsi-brochure', refreshURLData: {} } ); Liferay.Portlet.register('com_liferay_site_navigation_language_web_portlet_SiteNavigationLanguagePortlet'); Liferay.Portlet.onLoad( { canEditTitle: false, columnPos: 0, isStatic: 'end', namespacedId: 'p_p_id_com_liferay_site_navigation_language_web_portlet_SiteNavigationLanguagePortlet_', portletId: 'com_liferay_site_navigation_language_web_portlet_SiteNavigationLanguagePortlet', refreshURL: '\x2fen\x2fc\x2fportal\x2frender_portlet\x3fp_l_id\x3d41483279\x26p_p_id\x3dcom_liferay_site_navigation_language_web_portlet_SiteNavigationLanguagePortlet\x26p_p_lifecycle\x3d0\x26p_t_lifecycle\x3d0\x26p_p_state\x3dnormal\x26p_p_mode\x3dview\x26p_p_col_id\x3dnull\x26p_p_col_pos\x3dnull\x26p_p_col_count\x3dnull\x26p_p_static\x3d1\x26p_p_isolated\x3d1\x26currentURL\x3d\x252Fen\x252Fpublications\x252Fsi-brochure\x26settingsScope\x3dportletInstance', refreshURLData: {} } ); Liferay.Portlet.register('com_liferay_site_navigation_language_web_portlet_SiteNavigationLanguagePortlet'); Liferay.Portlet.onLoad( { canEditTitle: false, columnPos: 0, isStatic: 'end', namespacedId: 'p_p_id_com_liferay_site_navigation_language_web_portlet_SiteNavigationLanguagePortlet_', portletId: 'com_liferay_site_navigation_language_web_portlet_SiteNavigationLanguagePortlet', refreshURL: '\x2fen\x2fc\x2fportal\x2frender_portlet\x3fp_l_id\x3d41483279\x26p_p_id\x3dcom_liferay_site_navigation_language_web_portlet_SiteNavigationLanguagePortlet\x26p_p_lifecycle\x3d0\x26p_t_lifecycle\x3d0\x26p_p_state\x3dnormal\x26p_p_mode\x3dview\x26p_p_col_id\x3dnull\x26p_p_col_pos\x3dnull\x26p_p_col_count\x3dnull\x26p_p_static\x3d1\x26p_p_isolated\x3d1\x26currentURL\x3d\x252Fen\x252Fpublications\x252Fsi-brochure\x26settingsScope\x3dportletInstance', refreshURLData: {} } ); Liferay.Portlet.register('com_liferay_site_navigation_language_web_portlet_SiteNavigationLanguagePortlet'); Liferay.Portlet.onLoad( { canEditTitle: false, columnPos: 0, isStatic: 'end', namespacedId: 'p_p_id_com_liferay_site_navigation_language_web_portlet_SiteNavigationLanguagePortlet_', portletId: 'com_liferay_site_navigation_language_web_portlet_SiteNavigationLanguagePortlet', refreshURL: '\x2fen\x2fc\x2fportal\x2frender_portlet\x3fp_l_id\x3d41483279\x26p_p_id\x3dcom_liferay_site_navigation_language_web_portlet_SiteNavigationLanguagePortlet\x26p_p_lifecycle\x3d0\x26p_t_lifecycle\x3d0\x26p_p_state\x3dnormal\x26p_p_mode\x3dview\x26p_p_col_id\x3dnull\x26p_p_col_pos\x3dnull\x26p_p_col_count\x3dnull\x26p_p_static\x3d1\x26p_p_isolated\x3d1\x26currentURL\x3d\x252Fen\x252Fpublications\x252Fsi-brochure\x26settingsScope\x3dportletInstance', refreshURLData: {} } ); Liferay.Portlet.register('com_liferay_site_navigation_language_web_portlet_SiteNavigationLanguagePortlet'); Liferay.Portlet.onLoad( { canEditTitle: false, columnPos: 0, isStatic: 'end', namespacedId: 'p_p_id_com_liferay_site_navigation_language_web_portlet_SiteNavigationLanguagePortlet_', portletId: 'com_liferay_site_navigation_language_web_portlet_SiteNavigationLanguagePortlet', refreshURL: '\x2fen\x2fc\x2fportal\x2frender_portlet\x3fp_l_id\x3d41483279\x26p_p_id\x3dcom_liferay_site_navigation_language_web_portlet_SiteNavigationLanguagePortlet\x26p_p_lifecycle\x3d0\x26p_t_lifecycle\x3d0\x26p_p_state\x3dnormal\x26p_p_mode\x3dview\x26p_p_col_id\x3dnull\x26p_p_col_pos\x3dnull\x26p_p_col_count\x3dnull\x26p_p_static\x3d1\x26p_p_isolated\x3d1\x26currentURL\x3d\x252Fen\x252Fpublications\x252Fsi-brochure\x26settingsScope\x3dportletInstance', refreshURLData: {} } ); Liferay.Portlet.register('com_liferay_site_navigation_language_web_portlet_SiteNavigationLanguagePortlet'); Liferay.Portlet.onLoad( { canEditTitle: false, columnPos: 0, isStatic: 'end', namespacedId: 'p_p_id_com_liferay_site_navigation_language_web_portlet_SiteNavigationLanguagePortlet_', portletId: 'com_liferay_site_navigation_language_web_portlet_SiteNavigationLanguagePortlet', refreshURL: '\x2fen\x2fc\x2fportal\x2frender_portlet\x3fp_l_id\x3d41483279\x26p_p_id\x3dcom_liferay_site_navigation_language_web_portlet_SiteNavigationLanguagePortlet\x26p_p_lifecycle\x3d0\x26p_t_lifecycle\x3d0\x26p_p_state\x3dnormal\x26p_p_mode\x3dview\x26p_p_col_id\x3dnull\x26p_p_col_pos\x3dnull\x26p_p_col_count\x3dnull\x26p_p_static\x3d1\x26p_p_isolated\x3d1\x26currentURL\x3d\x252Fen\x252Fpublications\x252Fsi-brochure\x26settingsScope\x3dportletInstance', refreshURLData: {} } ); Liferay.Portlet.register('com_liferay_site_navigation_language_web_portlet_SiteNavigationLanguagePortlet'); Liferay.Portlet.onLoad( { canEditTitle: false, columnPos: 0, isStatic: 'end', namespacedId: 'p_p_id_com_liferay_site_navigation_language_web_portlet_SiteNavigationLanguagePortlet_', portletId: 'com_liferay_site_navigation_language_web_portlet_SiteNavigationLanguagePortlet', refreshURL: '\x2fen\x2fc\x2fportal\x2frender_portlet\x3fp_l_id\x3d41483279\x26p_p_id\x3dcom_liferay_site_navigation_language_web_portlet_SiteNavigationLanguagePortlet\x26p_p_lifecycle\x3d0\x26p_t_lifecycle\x3d0\x26p_p_state\x3dnormal\x26p_p_mode\x3dview\x26p_p_col_id\x3dnull\x26p_p_col_pos\x3dnull\x26p_p_col_count\x3dnull\x26p_p_static\x3d1\x26p_p_isolated\x3d1\x26currentURL\x3d\x252Fen\x252Fpublications\x252Fsi-brochure\x26settingsScope\x3dportletInstance', refreshURLData: {} } ); Liferay.Portlet.register('com_liferay_site_navigation_language_web_portlet_SiteNavigationLanguagePortlet'); Liferay.Portlet.onLoad( { canEditTitle: false, columnPos: 0, isStatic: 'end', namespacedId: 'p_p_id_com_liferay_site_navigation_language_web_portlet_SiteNavigationLanguagePortlet_', portletId: 'com_liferay_site_navigation_language_web_portlet_SiteNavigationLanguagePortlet', refreshURL: '\x2fen\x2fc\x2fportal\x2frender_portlet\x3fp_l_id\x3d41483279\x26p_p_id\x3dcom_liferay_site_navigation_language_web_portlet_SiteNavigationLanguagePortlet\x26p_p_lifecycle\x3d0\x26p_t_lifecycle\x3d0\x26p_p_state\x3dnormal\x26p_p_mode\x3dview\x26p_p_col_id\x3dnull\x26p_p_col_pos\x3dnull\x26p_p_col_count\x3dnull\x26p_p_static\x3d1\x26p_p_isolated\x3d1\x26currentURL\x3d\x252Fen\x252Fpublications\x252Fsi-brochure\x26settingsScope\x3dportletInstance', refreshURLData: {} } ); Liferay.Portlet.register('com_liferay_journal_content_web_portlet_JournalContentPortlet_INSTANCE_ulfU2CmKEG21'); Liferay.Portlet.onLoad( { canEditTitle: false, columnPos: 1, isStatic: 'end', namespacedId: 'p_p_id_com_liferay_journal_content_web_portlet_JournalContentPortlet_INSTANCE_ulfU2CmKEG21_', portletId: 'com_liferay_journal_content_web_portlet_JournalContentPortlet_INSTANCE_ulfU2CmKEG21', refreshURL: '\x2fen\x2fc\x2fportal\x2frender_portlet\x3fp_l_id\x3d41483279\x26p_p_id\x3dcom_liferay_journal_content_web_portlet_JournalContentPortlet_INSTANCE_ulfU2CmKEG21\x26p_p_lifecycle\x3d0\x26p_t_lifecycle\x3d0\x26p_p_state\x3dnormal\x26p_p_mode\x3dview\x26p_p_col_id\x3dcolumn-1\x26p_p_col_pos\x3d1\x26p_p_col_count\x3d9\x26p_p_isolated\x3d1\x26currentURL\x3d\x252Fen\x252Fpublications\x252Fsi-brochure', refreshURLData: {} } ); Liferay.Portlet.register('com_liferay_journal_content_web_portlet_JournalContentPortlet_INSTANCE_4md6nhXT9X3K'); Liferay.Portlet.onLoad( { canEditTitle: false, columnPos: 5, isStatic: 'end', namespacedId: 'p_p_id_com_liferay_journal_content_web_portlet_JournalContentPortlet_INSTANCE_4md6nhXT9X3K_', portletId: 'com_liferay_journal_content_web_portlet_JournalContentPortlet_INSTANCE_4md6nhXT9X3K', refreshURL: '\x2fen\x2fc\x2fportal\x2frender_portlet\x3fp_l_id\x3d41483279\x26p_p_id\x3dcom_liferay_journal_content_web_portlet_JournalContentPortlet_INSTANCE_4md6nhXT9X3K\x26p_p_lifecycle\x3d0\x26p_t_lifecycle\x3d0\x26p_p_state\x3dnormal\x26p_p_mode\x3dview\x26p_p_col_id\x3dcolumn-1\x26p_p_col_pos\x3d5\x26p_p_col_count\x3d9\x26p_p_isolated\x3d1\x26currentURL\x3d\x252Fen\x252Fpublications\x252Fsi-brochure', refreshURLData: {} } ); Liferay.Portlet.register('com_liferay_asset_publisher_web_portlet_AssetPublisherPortlet_INSTANCE_Uy9C6RxzMDL3'); Liferay.Portlet.onLoad( { canEditTitle: false, columnPos: 2, isStatic: 'end', namespacedId: 'p_p_id_com_liferay_asset_publisher_web_portlet_AssetPublisherPortlet_INSTANCE_Uy9C6RxzMDL3_', portletId: 'com_liferay_asset_publisher_web_portlet_AssetPublisherPortlet_INSTANCE_Uy9C6RxzMDL3', refreshURL: '\x2fen\x2fc\x2fportal\x2frender_portlet\x3fp_l_id\x3d41483279\x26p_p_id\x3dcom_liferay_asset_publisher_web_portlet_AssetPublisherPortlet_INSTANCE_Uy9C6RxzMDL3\x26p_p_lifecycle\x3d0\x26p_t_lifecycle\x3d0\x26p_p_state\x3dnormal\x26p_p_mode\x3dview\x26p_p_col_id\x3dcolumn-1\x26p_p_col_pos\x3d2\x26p_p_col_count\x3d9\x26p_p_isolated\x3d1\x26currentURL\x3d\x252Fen\x252Fpublications\x252Fsi-brochure', refreshURLData: {} } ); Liferay.Portlet.register('com_liferay_site_navigation_menu_web_portlet_SiteNavigationMenuPortlet_INSTANCE_navigation_quicklinks'); Liferay.Portlet.onLoad( { canEditTitle: false, columnPos: 0, isStatic: 'end', namespacedId: 'p_p_id_com_liferay_site_navigation_menu_web_portlet_SiteNavigationMenuPortlet_INSTANCE_navigation_quicklinks_', portletId: 'com_liferay_site_navigation_menu_web_portlet_SiteNavigationMenuPortlet_INSTANCE_navigation_quicklinks', refreshURL: '\x2fen\x2fc\x2fportal\x2frender_portlet\x3fp_l_id\x3d41483279\x26p_p_id\x3dcom_liferay_site_navigation_menu_web_portlet_SiteNavigationMenuPortlet_INSTANCE_navigation_quicklinks\x26p_p_lifecycle\x3d0\x26p_t_lifecycle\x3d0\x26p_p_state\x3dnormal\x26p_p_mode\x3dview\x26p_p_col_id\x3dnull\x26p_p_col_pos\x3dnull\x26p_p_col_count\x3dnull\x26p_p_static\x3d1\x26p_p_isolated\x3d1\x26currentURL\x3d\x252Fen\x252Fpublications\x252Fsi-brochure\x26settingsScope\x3dportletInstance', refreshURLData: {} } ); Liferay.Loader.require('metal-dom/src/all/dom', 'metal-uri/src/Uri', 'clay-tooltip/src/ClayTooltip', function(metalDomSrcAllDom, metalUriSrcUri, clayTooltipSrcClayTooltip) { (function(){ var dom = metalDomSrcAllDom; var metalUriSrcUri1 = metalUriSrcUri; var ClayTooltip = clayTooltipSrcClayTooltip; (function() {var $ = AUI.$;var _ = AUI._; var Uri = metalUriSrcUri.default; var pathnameRegexp = /\/documents\/(\d+)\/(\d+)\/(.+)\/(.+)/; var downloadClickHandler = dom.delegate( document.body, 'click', 'a', function(event) { if (window.Analytics) { var anchor = event.delegateTarget; var uri = new Uri(anchor.href); var match = pathnameRegexp.exec(uri.getPathname()); if (match) { Analytics.send( 'documentDownloaded', 'Document', { groupId: match[1], fileEntryUUID: match[4], preview: !!window._com_liferay_document_library_analytics_isViewFileEntry, title: decodeURIComponent(match[3].replace(/\+/ig, ' ')), version: uri.getParameterValue('version') } ); } } } ); var onDestroyPortlet = function() { downloadClickHandler.removeListener() Liferay.detach('destroyPortlet', onDestroyPortlet); } Liferay.on('destroyPortlet', onDestroyPortlet); })();(function() {var $ = AUI.$;var _ = AUI._; if (!Liferay.Data.LFR_PORTAL_CLAY_TOOLTIP) { Liferay.Data.LFR_PORTAL_CLAY_TOOLTIP = ClayTooltip.default.init( { selectors: [ '.management-bar [data-title]:not(.lfr-portal-tooltip)', '.management-bar [title]:not(.lfr-portal-tooltip)' ] } ); } })();})(); }, function(error) { console.error(error); });AUI().use('aui-tooltip', 'liferay-menu', 'liferay-notice', 'aui-base', 'liferay-session', 'liferay-poller', 'querystring-parse', function(A) {(function() {var $ = AUI.$;var _ = AUI._; if (A.UA.mobile) { Liferay.Util.addInputCancel(); } })();(function() {var $ = AUI.$;var _ = AUI._; if (!Liferay.Data.LFR_PORTAL_TOOLTIP) { var triggerShowEvent = ['mouseenter', 'MSPointerDown', 'touchstart']; if (A.UA.ios) { triggerShowEvent = ['touchstart']; } Liferay.Data.LFR_PORTAL_TOOLTIP = new A.TooltipDelegate( { constrain: true, opacity: 1, trigger: '.lfr-portal-tooltip', triggerHideEvent: ['click', 'mouseleave', 'MSPointerUp', 'touchend'], triggerShowEvent: triggerShowEvent, visible: false, zIndex: Liferay.zIndex.TOOLTIP } ); } })();(function() {var $ = AUI.$;var _ = AUI._; new Liferay.Menu(); var liferayNotices = Liferay.Data.notices; for (var i = 1; i < liferayNotices.length; i++) { new Liferay.Notice(liferayNotices[i]); } })();(function() {var $ = AUI.$;var _ = AUI._; Liferay.Session = new Liferay.SessionBase( { autoExtend: true, redirectOnExpire: false, redirectUrl: 'https\x3a\x2f\x2fwww\x2ebipm\x2eorg\x2fweb\x2fguest', sessionLength: 36000, warningLength: 0 } ); })();(function() {var $ = AUI.$;var _ = AUI._; var queryString = window.location.search.substring(1); var queryParamObj = new A.QueryString.parse(queryString); var assetEntryId = queryParamObj['_com_liferay_asset_publisher_web_portlet_AssetPublisherPortlet_INSTANCE_5k0AaNkRV0Ho_assetEntryId']; if (assetEntryId) { window.location.hash = assetEntryId; } })();(function() {var $ = AUI.$;var _ = AUI._; var queryString = window.location.search.substring(1); var queryParamObj = new A.QueryString.parse(queryString); var assetEntryId = queryParamObj['_com_liferay_asset_publisher_web_portlet_AssetPublisherPortlet_INSTANCE_ANQZTaA0MzIT_assetEntryId']; if (assetEntryId) { window.location.hash = assetEntryId; } })();(function() {var $ = AUI.$;var _ = AUI._; var queryString = window.location.search.substring(1); var queryParamObj = new A.QueryString.parse(queryString); var assetEntryId = queryParamObj['_com_liferay_asset_publisher_web_portlet_AssetPublisherPortlet_INSTANCE_R2Y1zHkMikvv_assetEntryId']; if (assetEntryId) { window.location.hash = assetEntryId; } })();(function() {var $ = AUI.$;var _ = AUI._; var queryString = window.location.search.substring(1); var queryParamObj = new A.QueryString.parse(queryString); var assetEntryId = queryParamObj['_com_liferay_asset_publisher_web_portlet_AssetPublisherPortlet_INSTANCE_Uy9C6RxzMDL3_assetEntryId']; if (assetEntryId) { window.location.hash = assetEntryId; } })();}); // ]]> </script> <script src="https://web.archive.org/web/20210419211921js_/https://www.bipm.org/o/bipm-theme/js/main.js?browserId=firefox&minifierType=js&languageId=en_US&b=7110&t=1618575711841" type="text/javascript"></script> <script type="text/javascript"> // <![CDATA[ AUI().use( 'aui-base', function(A) { var frameElement = window.frameElement; if (frameElement && frameElement.getAttribute('id') === 'simulationDeviceIframe') { A.getBody().addClass('lfr-has-simulation-panel'); } } ); // ]]> </script> <div class="cookie-agreement hide"> <p>We use cookies to optimize our website. <a href="https://web.archive.org/web/20210419211921/https://www.bipm.org/web/guest/privacy-policy" class="policy-button button-secondary button-secondary--no-arrow">View privacy policy</a></p> <div> <button class="agree-button button-primary">Accept</button> </div> </div> </body> </html>

CINXE.COM

SI Brochure - BIPM