Calibrations

<!DOCTYPE html> <html lang="en" dir="ltr" prefix="content: http://purl.org/rss/1.0/modules/content/ dc: http://purl.org/dc/terms/ foaf: http://xmlns.com/foaf/0.1/ og: http://ogp.me/ns# rdfs: http://www.w3.org/2000/01/rdf-schema# schema: http://schema.org/ sioc: http://rdfs.org/sioc/ns# sioct: http://rdfs.org/sioc/types# skos: http://www.w3.org/2004/02/skos/core# xsd: http://www.w3.org/2001/XMLSchema# "> <head><script type="text/javascript" src="/_static/js/bundle-playback.js?v=HxkREWBo" charset="utf-8"></script> <script type="text/javascript" src="/_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="/_static/js/ruffle/ruffle.js"></script> <script type="text/javascript"> __wm.init("https://web.archive.org/web"); __wm.wombat("https://www.nist.gov/calibrations","20230130210943","https://web.archive.org/","web","/_static/", "1675112983"); </script> <link rel="stylesheet" type="text/css" href="/_static/css/banner-styles.css?v=S1zqJCYt" /> <link rel="stylesheet" type="text/css" href="/_static/css/iconochive.css?v=3PDvdIFv" />  <meta charset="utf-8"/><script type="text/javascript">(window.NREUM||(NREUM={})).init={ajax:{deny_list:["gov-bam.nr-data.net"]}};(window.NREUM||(NREUM={})).loader_config={licenseKey:"37b7ccb661",applicationID:"1089704227"};;(()=>{var __webpack_modules__={507:(__unused_webpack_module,__webpack_exports__,__webpack_require__)=>{"use strict";function detectPolyfillFeatures(){const featureStatus={};return checkAndAddFeature("Promise","PROMISE"),checkAndAddFeature("Array.prototype.includes","ARRAY_INCLUDES"),checkAndAddFeature("Object.assign","OBJECT_ASSIGN"),checkAndAddFeature("Object.entries","OBJECT_ENTRIES"),featureStatus;function checkAndAddFeature(funcString,featName){try{let func=eval("self."+funcString);-1!==func.toString().indexOf("[native code]")?featureStatus[featName]=Status.NATIVE:featureStatus[featName]=Status.CHANGED}catch{featureStatus[featName]=Status.UNAVAIL}}}__webpack_require__.d(__webpack_exports__,{n:()=>detectPolyfillFeatures});const Status={UNAVAIL:"NotSupported",NATIVE:"Detected",CHANGED:"Modified"}},2687:(e,t,r)=>{"use strict";r.d(t,{Z:()=>n});const n=(0,r(2141).ky)(16)},1719:(e,t,r)=>{"use strict";r.d(t,{I:()=>n});var n=0,i=navigator.userAgent.match(/Firefox[\/\s](\d+\.\d+)/);i&&(n=+i[1])},3524:(e,t,r)=>{"use strict";let n;if(r.d(t,{H:()=>i}),r(8438).il){const e=document.createElement("div");e.innerHTML="\x3c!--[if lte IE 6]><div></div><![endif]--\x3e\x3c!--[if lte IE 7]><div></div><![endif]--\x3e\x3c!--[if lte IE 8]><div></div><![endif]--\x3e\x3c!--[if lte IE 9]><div></div><![endif]--\x3e",n=e.getElementsByTagName("div").length}var i;i=4===n?6:3===n?7:2===n?8:1===n?9:0},5970:(e,t,r)=>{"use strict";r.d(t,{Mt:()=>_,C5:()=>s,OP:()=>j,Yu:()=>g,Dg:()=>f,CX:()=>u,GE:()=>b,sU:()=>I});var n={};r.r(n),r.d(n,{agent:()=>m,match:()=>x,version:()=>y});var i=r(4580);class o{constructor(e,t){return e&&"object"==typeof e?t&&"object"==typeof t?(Object.assign(this,t),void Object.entries(e).forEach((e=>{let[t,r]=e;this[t]=r}))):console.error("setting a Configurable requires a model to set its initial properties"):console.error("setting a Configurable requires an object as input")}}const a={beacon:i.ce.beacon,errorBeacon:i.ce.errorBeacon,licenseKey:void 0,applicationID:void 0,sa:void 0,queueTime:void 0,applicationTime:void 0,ttGuid:void 0,user:void 0,account:void 0,product:void 0,extra:void 0,jsAttributes:{},userAttributes:void 0,atts:void 0,transactionName:void 0,tNamePlain:void 0},c={};function s(e){if(!e)throw new Error("All info objects require an agent identifier!");if(!c[e])throw new Error(`Info for ${e} was never set`);return c[e]}function u(e,t){if(!e)throw new Error("All info objects require an agent identifier!");c[e]=new o(t,a),(0,i.Qy)(e,c[e],"info")}const d={allow_bfcache:!1,privacy:{cookies_enabled:!0},ajax:{deny_list:void 0,enabled:!0},distributed_tracing:{enabled:void 0,exclude_newrelic_header:void 0,cors_use_newrelic_header:void 0,cors_use_tracecontext_headers:void 0,allowed_origins:void 0},ssl:void 0,obfuscate:void 0,jserrors:{enabled:!0},metrics:{enabled:!0},page_action:{enabled:!0},page_view_event:{enabled:!0},page_view_timing:{enabled:!0},session_trace:{enabled:!0},spa:{enabled:!0}},l={};function f(e,t){if(!e)throw new Error("All configuration objects require an agent identifier!");l[e]=new o(t,d),(0,i.Qy)(e,l[e],"config")}function _(e,t){if(!e)throw new Error("All configuration objects require an agent identifier!");var r=function(e){if(!e)throw new Error("All configuration objects require an agent identifier!");if(!l[e])throw new Error(`Configuration for ${e} was never set`);return l[e]}(e);if(r){for(var n=t.split("."),i=0;i<n.length-1;i++)if("object"!=typeof(r=r[n[i]]))return;r=r[n[n.length-1]]}return r}const p={accountID:void 0,trustKey:void 0,agentID:void 0,licenseKey:void 0,applicationID:void 0,xpid:void 0},v={};function b(e,t){if(!e)throw new Error("All loader-config objects require an agent identifier!");v[e]=new o(t,p),(0,i.Qy)(e,v[e],"loader_config")}const g=(0,i.mF)().o;var h=r(3524),w=r(9206),m=null,y=null;if(navigator.userAgent){var k=navigator.userAgent,P=k.match(/Version\/(\S+)\s+Safari/);P&&-1===k.indexOf("Chrome")&&-1===k.indexOf("Chromium")&&(m="Safari",y=P[1])}function x(e,t){if(!m)return!1;if(e!==m)return!1;if(!t)return!0;if(!y)return!1;for(var r=y.split("."),n=t.split("."),i=0;i<n.length;i++)if(n[i]!==r[i])return!1;return!0}var E=r(2141),S=r(8438);const O="NRBA_SESSION_ID";function A(){if(!S.il)return null;try{let e;return null===(e=window.sessionStorage.getItem(O))&&(e=(0,E.ky)(16),window.sessionStorage.setItem(O,e)),e}catch(e){return null}}var q=S.ZP?.XMLHttpRequest,C=q&&q.prototype;const T={};function j(e){if(!e)throw new Error("All runtime objects require an agent identifier!");if(!T[e])throw new Error(`Runtime for ${e} was never set`);return T[e]}function I(e,t){if(!e)throw new Error("All runtime objects require an agent identifier!");var r;T[e]=new o(t,(r=e,{customTransaction:void 0,disabled:!1,features:{},loaderType:void 0,maxBytes:6===h.H?2e3:3e4,offset:(0,w.yf)(),onerror:void 0,origin:""+S.ZP?.location,ptid:void 0,releaseIds:{},sessionId:1==_(r,"privacy.cookies_enabled")?A():null,xhrWrappable:q&&C&&C.addEventListener&&!/CriOS/.test(navigator.userAgent),userAgent:n})),(0,i.Qy)(e,T[e],"runtime")}},8873:(e,t,r)=>{"use strict";r.d(t,{q:()=>n});const n=["1222","PROD"].filter((e=>e)).join(".")},1925:(e,t,r)=>{"use strict";r.d(t,{w:()=>i});const n={agentIdentifier:""};class i{constructor(e){if("object"!=typeof e)return console.error("shared context requires an object as input");this.sharedContext={},Object.assign(this.sharedContext,n),Object.entries(e).forEach((e=>{let[t,r]=e;Object.keys(n).includes(t)&&(this.sharedContext[t]=r)}))}}},2071:(e,t,r)=>{"use strict";r.d(t,{ee:()=>s});var n=r(4580),i=r(9010),o=r(9599),a="nr@context";let c=(0,n.fP)();var s;function u(){}function d(){return new u}function l(){(s.backlog.api||s.backlog.feature)&&(s.aborted=!0,s.backlog={})}c.ee?s=c.ee:(s=function e(t,r){var n={},c={},f={},_={on:b,addEventListener:b,removeEventListener:g,emit:v,get:w,listeners:h,context:p,buffer:m,abort:l,aborted:!1,isBuffering:y,debugId:r,backlog:t&&t.backlog?t.backlog:{}};return _;function p(e){return e&&e instanceof u?e:e?(0,i.X)(e,a,d):d()}function v(e,r,n,i,o){if(!1!==o&&(o=!0),!s.aborted||i){t&&o&&t.emit(e,r,n);for(var a=p(n),u=h(e),d=u.length,l=0;l<d;l++)u[l].apply(a,r);var f=k()[c[e]];return f&&f.push([_,e,r,a]),a}}function b(e,t){n[e]=h(e).concat(t)}function g(e,t){var r=n[e];if(r)for(var i=0;i<r.length;i++)r[i]===t&&r.splice(i,1)}function h(e){return n[e]||[]}function w(t){return f[t]=f[t]||e(_,t)}function m(e,t){var r=k();_.aborted||(0,o.D)(e,(function(e,n){t=t||"feature",c[n]=t,t in r||(r[t]=[])}))}function y(e){return!!k()[c[e]]}function k(){return _.backlog}}(void 0,"globalEE"),c.ee=s)},3195:(e,t,r)=>{"use strict";r.d(t,{E:()=>n,p:()=>i});var n=r(2071).ee.get("handle");function i(e,t,r,i,o){o?(o.buffer([e],i),o.emit(e,t,r)):(n.buffer([e],i),n.emit(e,t,r))}},4539:(e,t,r)=>{"use strict";r.d(t,{X:()=>o});var n=r(3195);o.on=a;var i=o.handlers={};function o(e,t,r,o){a(o||n.E,i,e,t,r)}function a(e,t,r,i,o){o||(o="feature"),e||(e=n.E);var a=t[o]=t[o]||{};(a[r]=a[r]||[]).push([e,i])}},3585:(e,t,r)=>{"use strict";r.d(t,{bP:()=>c,iz:()=>s,m$:()=>a});var n=r(8438),i=!1;try{var o=Object.defineProperty({},"passive",{get:function(){i=!0}});n.ZP?.addEventListener("testPassive",null,o),n.ZP?.removeEventListener("testPassive",null,o)}catch(e){}function a(e){return i?{passive:!0,capture:!!e}:!!e}function c(e,t){let r=arguments.length>2&&void 0!==arguments[2]&&arguments[2];window.addEventListener(e,t,a(r))}function s(e,t){let r=arguments.length>2&&void 0!==arguments[2]&&arguments[2];document.addEventListener(e,t,a(r))}},2141:(e,t,r)=>{"use strict";r.d(t,{Rl:()=>i,ky:()=>o});var n=r(8438);function i(){var e=null,t=0,r=n.ZP?.crypto||n.ZP?.msCrypto;function i(){return e?15&e[t++]:16*Math.random()|0}r&&r.getRandomValues&&(e=r.getRandomValues(new Uint8Array(31)));for(var o,a="xxxxxxxx-xxxx-4xxx-yxxx-xxxxxxxxxxxx",c="",s=0;s<a.length;s++)c+="x"===(o=a[s])?i().toString(16):"y"===o?(o=3&i()|8).toString(16):o;return c}function o(e){var t=null,r=0,n=self.crypto||self.msCrypto;n&&n.getRandomValues&&Uint8Array&&(t=n.getRandomValues(new Uint8Array(31)));for(var i=[],o=0;o<e;o++)i.push(a().toString(16));return i.join("");function a(){return t?15&t[r++]:16*Math.random()|0}}},9206:(e,t,r)=>{"use strict";r.d(t,{nb:()=>s,os:()=>u,yf:()=>c,zO:()=>a});var n=r(1209),i=(new Date).getTime(),o=i;function a(){return n.G&&performance.now?Math.round(performance.now()):(i=Math.max((new Date).getTime(),i))-o}function c(){return i}function s(e){o=e}function u(){return o}},1209:(e,t,r)=>{"use strict";r.d(t,{G:()=>n});const n=void 0!==r(8438).ZP?.performance?.timing?.navigationStart},745:(e,t,r)=>{"use strict";r.d(t,{s:()=>s,v:()=>u});var n=r(7036),i=r(1719),o=r(9206),a=r(1209),c=r(8438);let s=!0;function u(e){var t=function(){if(i.I&&i.I<9)return;if(a.G)return s=!1,c.ZP?.performance?.timing?.navigationStart}();t&&((0,n.B)(e,"starttime",t),(0,o.nb)(t))}},7036:(e,t,r)=>{"use strict";r.d(t,{B:()=>o,L:()=>a});var n=r(9206),i={};function o(e,t,r){void 0===r&&(r=(0,n.zO)()+(0,n.os)()),i[e]=i[e]||{},i[e][t]=r}function a(e,t,r,n){const o=e.sharedContext.agentIdentifier;var a=i[o]?.[r],c=i[o]?.[n];void 0!==a&&void 0!==c&&e.store("measures",t,{value:c-a})}},8547:(e,t,r)=>{"use strict";r.d(t,{T:()=>i});var n=r(8438);const i={isFileProtocol:function(){let e=Boolean("file:"===(0,n.lW)()?.location?.protocol);e&&(i.supportabilityMetricSent=!0);return e},supportabilityMetricSent:!1}},9011:(e,t,r)=>{"use strict";r.d(t,{K:()=>o});var n=r(5970);const i=["ajax","jserrors","metrics","page_action","page_view_event","page_view_timing","session_trace","spa"];function o(e){const t={};return i.forEach((r=>{t[r]=function(e,t){return!0!==(0,n.OP)(t).disabled&&!1!==(0,n.Mt)(t,`${e}.enabled`)}(r,e)})),t}},8025:(e,t,r)=>{"use strict";r.d(t,{W:()=>i});var n=r(2071);class i{constructor(e,t){let r=arguments.length>2&&void 0!==arguments[2]?arguments[2]:[];this.agentIdentifier=e,this.aggregator=t,this.ee=n.ee.get(e),this.externalFeatures=r,this.blocked=!1}}},9010:(e,t,r)=>{"use strict";r.d(t,{X:()=>i});var n=Object.prototype.hasOwnProperty;function i(e,t,r){if(n.call(e,t))return e[t];var i=r();if(Object.defineProperty&&Object.keys)try{return Object.defineProperty(e,t,{value:i,writable:!0,enumerable:!1}),i}catch(e){}return e[t]=i,i}},8438:(e,t,r)=>{"use strict";r.d(t,{ZP:()=>a,il:()=>n,lW:()=>c,v6:()=>i});const n=Boolean("undefined"!=typeof window&&window.document),i=Boolean("undefined"!=typeof WorkerGlobalScope&&self.navigator instanceof WorkerNavigator);let o=(()=>{if(n)return window;if(i){if("undefined"!=typeof globalThis&&globalThis instanceof WorkerGlobalScope)return globalThis;if(self instanceof WorkerGlobalScope)return self}throw new Error("New Relic browser agent shutting down due to error: Unable to locate global scope. This is possibly due to code redefining browser global variables like `self` and `window`.")})();const a=o;function c(){return o}},9599:(e,t,r)=>{"use strict";r.d(t,{D:()=>i});var n=Object.prototype.hasOwnProperty;function i(e,t){var r=[],i="",o=0;for(i in e)n.call(e,i)&&(r[o]=t(i,e[i]),o+=1);return r}},248:(e,t,r)=>{"use strict";r.d(t,{$c:()=>s,Ng:()=>u,RR:()=>c});var n=r(5970),i=r(1925),o=r(8547),a={regex:/^file:\/\/(.*)/,replacement:"file://OBFUSCATED"};class c extends i.w{constructor(e){super(e)}shouldObfuscate(){return s(this.sharedContext.agentIdentifier).length>0}obfuscateString(e){if(!e||"string"!=typeof e)return e;for(var t=s(this.sharedContext.agentIdentifier),r=e,n=0;n<t.length;n++){var i=t[n].regex,o=t[n].replacement||"*";r=r.replace(i,o)}return r}}function s(e){var t=[],r=(0,n.Mt)(e,"obfuscate")||[];return t=t.concat(r),o.T.isFileProtocol()&&t.push(a),t}function u(e){for(var t=!1,r=!1,n=0;n<e.length;n++){"regex"in e[n]?"string"!=typeof e[n].regex&&e[n].regex.constructor!==RegExp&&(console&&console.warn&&console.warn('An obfuscation replacement rule contains a "regex" value with an invalid type (must be a string or RegExp)'),r=!0):(console&&console.warn&&console.warn('An obfuscation replacement rule was detected missing a "regex" value.'),r=!0);var i=e[n].replacement;i&&"string"!=typeof i&&(console&&console.warn&&console.warn('An obfuscation replacement rule contains a "replacement" value with an invalid type (must be a string)'),t=!0)}return!t&&!r}},4580:(e,t,r)=>{"use strict";r.d(t,{EZ:()=>u,Qy:()=>s,ce:()=>o,fP:()=>a,gG:()=>d,mF:()=>c});var n=r(9206),i=r(8438);const o={beacon:"bam.nr-data.net",errorBeacon:"bam.nr-data.net"};function a(){return i.ZP?.NREUM||(i.ZP.NREUM={}),void 0===i.ZP?.newrelic&&(i.ZP.newrelic=i.ZP.NREUM),i.ZP.NREUM}function c(){let e=a();if(!e.o){var t=self,r=t.XMLHttpRequest;e.o={ST:setTimeout,SI:t.setImmediate,CT:clearTimeout,XHR:r,REQ:t.Request,EV:t.Event,PR:t.Promise,MO:t.MutationObserver,FETCH:t.fetch}}return e}function s(e,t,r){let i=a();const o=i.initializedAgents||{},c=o[e]||{};return Object.keys(c).length||(c.initializedAt={ms:(0,n.zO)(),date:new Date}),i.initializedAgents={...o,[e]:{...c,[r]:t}},i}function u(e,t){a()[e]=t}function d(){return function(){let e=a();const t=e.info||{};e.info={beacon:o.beacon,errorBeacon:o.errorBeacon,...t}}(),function(){let e=a();const t=e.init||{};e.init={...t}}(),c(),function(){let e=a();const t=e.loader_config||{};e.loader_config={...t}}(),a()}},584:(e,t,r)=>{"use strict";r.d(t,{N:()=>i,e:()=>o});var n=r(3585);function i(e){let t=arguments.length>1&&void 0!==arguments[1]&&arguments[1];return void(0,n.iz)("visibilitychange",r);function r(){if(t){if("hidden"!=document.visibilityState)return;e()}e(document.visibilityState)}}function o(){return"hidden"===document.visibilityState?-1:1/0}},8539:e=>{e.exports=function(e,t,r){t||(t=0),void 0===r&&(r=e?e.length:0);for(var n=-1,i=r-t||0,o=Array(i<0?0:i);++n<i;)o[n]=e[t+n];return o}}},__webpack_module_cache__={},inProgress,dataWebpackPrefix;function __webpack_require__(e){var t=__webpack_module_cache__[e];if(void 0!==t)return t.exports;var r=__webpack_module_cache__[e]={exports:{}};return __webpack_modules__[e](r,r.exports,__webpack_require__),r.exports}__webpack_require__.m=__webpack_modules__,__webpack_require__.n=e=>{var t=e&&e.__esModule?()=>e.default:()=>e;return __webpack_require__.d(t,{a:t}),t},__webpack_require__.d=(e,t)=>{for(var r in t)__webpack_require__.o(t,r)&&!__webpack_require__.o(e,r)&&Object.defineProperty(e,r,{enumerable:!0,get:t[r]})},__webpack_require__.f={},__webpack_require__.e=e=>Promise.all(Object.keys(__webpack_require__.f).reduce(((t,r)=>(__webpack_require__.f[r](e,t),t)),[])),__webpack_require__.u=e=>e+"."+__webpack_require__.h().slice(0,8)+"-1222.js",__webpack_require__.h=()=>"95d4308d836c4fa71ea6",__webpack_require__.o=(e,t)=>Object.prototype.hasOwnProperty.call(e,t),inProgress={},dataWebpackPrefix="NRBA:",__webpack_require__.l=(e,t,r,n)=>{if(inProgress[e])inProgress[e].push(t);else{var i,o;if(void 0!==r)for(var a=document.getElementsByTagName("script"),c=0;c<a.length;c++){var s=a[c];if(s.getAttribute("src")==e||s.getAttribute("data-webpack")==dataWebpackPrefix+r){i=s;break}}i||(o=!0,(i=document.createElement("script")).charset="utf-8",i.timeout=120,__webpack_require__.nc&&i.setAttribute("nonce",__webpack_require__.nc),i.setAttribute("data-webpack",dataWebpackPrefix+r),i.src=e),inProgress[e]=[t];var u=(t,r)=>{i.onerror=i.onload=null,clearTimeout(d);var n=inProgress[e];if(delete inProgress[e],i.parentNode&&i.parentNode.removeChild(i),n&&n.forEach((e=>e(r))),t)return t(r)},d=setTimeout(u.bind(null,void 0,{type:"timeout",target:i}),12e4);i.onerror=u.bind(null,i.onerror),i.onload=u.bind(null,i.onload),o&&document.head.appendChild(i)}},__webpack_require__.r=e=>{"undefined"!=typeof Symbol&&Symbol.toStringTag&&Object.defineProperty(e,Symbol.toStringTag,{value:"Module"}),Object.defineProperty(e,"__esModule",{value:!0})},__webpack_require__.p="https://web.archive.org/web/20230130210943/https://js-agent.newrelic.com/",(()=>{var e={783:0,519:0};__webpack_require__.f.j=(t,r)=>{var n=__webpack_require__.o(e,t)?e[t]:void 0;if(0!==n)if(n)r.push(n[2]);else{var i=new Promise(((r,i)=>n=e[t]=[r,i]));r.push(n[2]=i);var o=__webpack_require__.p+__webpack_require__.u(t),a=new Error;__webpack_require__.l(o,(r=>{if(__webpack_require__.o(e,t)&&(0!==(n=e[t])&&(e[t]=void 0),n)){var i=r&&("load"===r.type?"missing":r.type),o=r&&r.target&&r.target.src;a.message="Loading chunk "+t+" failed.\n("+i+": "+o+")",a.name="ChunkLoadError",a.type=i,a.request=o,n[1](a)}}),"chunk-"+t,t)}};var t=(t,r)=>{var n,i,[o,a,c]=r,s=0;if(o.some((t=>0!==e[t]))){for(n in a)__webpack_require__.o(a,n)&&(__webpack_require__.m[n]=a[n]);if(c)c(__webpack_require__)}for(t&&t(r);s<o.length;s++)i=o[s],__webpack_require__.o(e,i)&&e[i]&&e[i][0](),e[i]=0},r=window.webpackChunkNRBA=window.webpackChunkNRBA||[];r.forEach(t.bind(null,0)),r.push=t.bind(null,r.push.bind(r))})();var __webpack_exports__={};(()=>{"use strict";__webpack_require__.r(__webpack_exports__);var e=__webpack_require__(507),t=__webpack_require__(2687),r=__webpack_require__(3585);function n(e){if(!document||"complete"===document.readyState)return e()||!0}function i(e){n(e)||(0,r.bP)("load",e)}function o(e){n(e)||(0,r.iz)("DOMContentLoaded",e)}var a=__webpack_require__(8438),c=__webpack_require__(2071);let s=0;function u(e){(async()=>{if(!s++)try{const{aggregator:t}=await __webpack_require__.e(859).then(__webpack_require__.bind(__webpack_require__,7859));await t(e)}catch(e){console.error("Failed to successfully load all aggregators. Aborting...\n",e),c.ee.abort()}})()}var d=__webpack_require__(8539),l=__webpack_require__.n(d),f=__webpack_require__(4580),_=__webpack_require__(5970),p=__webpack_require__(3195),v=__webpack_require__(9599),b=__webpack_require__(9206);let g=!1;var h=__webpack_require__(7036),w=__webpack_require__(745),m=__webpack_require__(8025);class y extends m.W{constructor(e){super(e),a.il&&((0,w.v)(e),(0,h.B)(e,"firstbyte",(0,b.yf)()),i((()=>this.measureWindowLoaded())),o((()=>this.measureDomContentLoaded())))}measureWindowLoaded(){var e=(0,b.zO)();(0,h.B)(this.agentIdentifier,"onload",e+(0,b.os)()),(0,p.p)("timing",["load",e],void 0,void 0,this.ee)}measureDomContentLoaded(){(0,h.B)(this.agentIdentifier,"domContent",(0,b.zO)()+(0,b.os)())}}var k=__webpack_require__(584);class P extends m.W{constructor(e){var t;if(super(e),t=this,this.isEnabled()&&a.il){if(this.pageHiddenTime=(0,k.e)(),this.performanceObserver,this.lcpPerformanceObserver,this.clsPerformanceObserver,this.fiRecorded=!1,"PerformanceObserver"in window&&"function"==typeof window.PerformanceObserver){this.performanceObserver=new PerformanceObserver((function(){return t.perfObserver(...arguments)}));try{this.performanceObserver.observe({entryTypes:["paint"]})}catch(e){}this.lcpPerformanceObserver=new PerformanceObserver((function(){return t.lcpObserver(...arguments)}));try{this.lcpPerformanceObserver.observe({entryTypes:["largest-contentful-paint"]})}catch(e){}this.clsPerformanceObserver=new PerformanceObserver((function(){return t.clsObserver(...arguments)}));try{this.clsPerformanceObserver.observe({type:"layout-shift",buffered:!0})}catch(e){}}this.fiRecorded=!1;["click","keydown","mousedown","pointerdown","touchstart"].forEach((e=>{(0,r.iz)(e,(function(){return t.captureInteraction(...arguments)}))})),(0,k.N)((()=>{this.pageHiddenTime=(0,b.zO)(),(0,p.p)("docHidden",[this.pageHiddenTime],void 0,void 0,this.ee)}),!0),(0,r.bP)("pagehide",(()=>(0,p.p)("winPagehide",[(0,b.zO)()],void 0,void 0,this.ee)))}}isEnabled(){return!1!==(0,_.Mt)(this.agentIdentifier,"page_view_timing.enabled")}perfObserver(e,t){e.getEntries().forEach((e=>{"first-paint"===e.name?(0,p.p)("timing",["fp",Math.floor(e.startTime)],void 0,void 0,this.ee):"first-contentful-paint"===e.name&&(0,p.p)("timing",["fcp",Math.floor(e.startTime)],void 0,void 0,this.ee)}))}lcpObserver(e,t){var r=e.getEntries();if(r.length>0){var n=r[r.length-1];if(this.pageHiddenTime<n.startTime)return;var i=[n],o=this.addConnectionAttributes({});o&&i.push(o),(0,p.p)("lcp",i,void 0,void 0,this.ee)}}clsObserver(e){e.getEntries().forEach((e=>{e.hadRecentInput||(0,p.p)("cls",[e],void 0,void 0,this.ee)}))}addConnectionAttributes(e){var t=navigator.connection||navigator.mozConnection||navigator.webkitConnection;if(t)return t.type&&(e["net-type"]=t.type),t.effectiveType&&(e["net-etype"]=t.effectiveType),t.rtt&&(e["net-rtt"]=t.rtt),t.downlink&&(e["net-dlink"]=t.downlink),e}captureInteraction(e){if(e instanceof _.Yu.EV&&!this.fiRecorded){var t=Math.round(e.timeStamp),r={type:e.type};this.addConnectionAttributes(r),t<=(0,b.zO)()?r.fid=(0,b.zO)()-t:t>(0,b.os)()&&t<=Date.now()?(t-=(0,b.os)(),r.fid=(0,b.zO)()-t):t=(0,b.zO)(),this.fiRecorded=!0,(0,p.p)("timing",["fi",t,r],void 0,void 0,this.ee)}}}var x=__webpack_require__(4539),E="React",S="Angular",O="AngularJS",A="Backbone",q="Ember",C="Vue",T="Meteor",j="Zepto",I="Jquery";function R(){if(!a.il)return[];var e=[];try{(function(){try{if(window.React||window.ReactDOM||window.ReactRedux)return!0;if(document.querySelector("[data-reactroot], [data-reactid]"))return!0;for(var e=document.querySelectorAll("body > div"),t=0;t<e.length;t++)if(Object.keys(e[t]).indexOf("_reactRootContainer")>=0)return!0;return!1}catch(e){return!1}})()&&e.push(E),function(){try{return!!window.angular||(!!document.querySelector(".ng-binding, [ng-app], [data-ng-app], [ng-controller], [data-ng-controller], [ng-repeat], [data-ng-repeat]")||!!document.querySelector('script[src*="angular.js"], script[src*="angular.min.js"]'))}catch(e){return!1}}()&&e.push(O),function(){try{return!!(window.hasOwnProperty("ng")&&window.ng.hasOwnProperty("coreTokens")&&window.ng.coreTokens.hasOwnProperty("NgZone"))||!!document.querySelectorAll("[ng-version]").length}catch(e){return!1}}()&&e.push(S),window.Backbone&&e.push(A),window.Ember&&e.push(q),window.Vue&&e.push(C),window.Meteor&&e.push(T),window.Zepto&&e.push(j),window.jQuery&&e.push(I)}catch(e){}return e}var N=__webpack_require__(8547),M=__webpack_require__(248),Z=__webpack_require__(8873);const B=Boolean(a.ZP?.Worker),D=Boolean(a.ZP?.SharedWorker),W=Boolean(a.ZP?.navigator?.serviceWorker);let F,z,G;class L extends m.W{constructor(e){var t;let r=arguments.length>1&&void 0!==arguments[1]?arguments[1]:{};super(e),t=this,this.PfFeatStatusEnum=r,this.singleChecks(),this.eachSessionChecks(),(0,x.X)("record-supportability",(function(){return t.recordSupportability(...arguments)}),void 0,this.ee),(0,x.X)("record-custom",(function(){return t.recordCustom(...arguments)}),void 0,this.ee)}recordSupportability(e,t){var r=["sm",e,{name:e},t];return(0,p.p)("storeMetric",r,null,void 0,this.ee),r}recordCustom(e,t){var r=["cm",e,{name:e},t];return(0,p.p)("storeEventMetrics",r,null,void 0,this.ee),r}singleChecks(){this.recordSupportability(`Generic/Version/${Z.q}/Detected`);const{loaderType:e}=(0,_.OP)(this.agentIdentifier);e&&this.recordSupportability(`Generic/LoaderType/${e}/Detected`),a.il&&o((()=>{R().forEach((e=>{this.recordSupportability("Framework/"+e+"/Detected")}))})),N.T.isFileProtocol()&&(this.recordSupportability("Generic/FileProtocol/Detected"),N.T.supportabilityMetricSent=!0);const t=(0,M.$c)(this.agentIdentifier);t.length>0&&this.recordSupportability("Generic/Obfuscate/Detected"),t.length>0&&!(0,M.Ng)(t)&&this.recordSupportability("Generic/Obfuscate/Invalid"),a.il&&this.reportPolyfillsNeeded(),function(e){if(!F){if(B){F=Worker;try{a.ZP.Worker=r(F,"Dedicated")}catch(e){o(e,"Dedicated")}if(D){z=SharedWorker;try{a.ZP.SharedWorker=r(z,"Shared")}catch(e){o(e,"Shared")}}else n("Shared");if(W){G=navigator.serviceWorker.register;try{a.ZP.navigator.serviceWorker.register=(t=G,function(){for(var e=arguments.length,r=new Array(e),n=0;n<e;n++)r[n]=arguments[n];return i("Service",r[1]?.type),t.apply(navigator.serviceWorker,r)})}catch(e){o(e,"Service")}}else n("Service");var t;return}n("All")}function r(e,t){return new Proxy(e,{construct:(e,r)=>(i(t,r[1]?.type),new e(...r))})}function n(t){a.v6||e(`Workers/${t}/Unavailable`)}function i(t,r){e("module"===r?`Workers/${t}/Module`:`Workers/${t}/Classic`)}function o(t,r){e(`Workers/${r}/SM/Unsupported`),console.warn(`NR Agent: Unable to capture ${r} workers.`,t)}}(this.recordSupportability.bind(this))}reportPolyfillsNeeded(){this.recordSupportability(`Generic/Polyfill/Promise/${this.PfFeatStatusEnum.PROMISE}`),this.recordSupportability(`Generic/Polyfill/ArrayIncludes/${this.PfFeatStatusEnum.ARRAY_INCLUDES}`),this.recordSupportability(`Generic/Polyfill/ObjectAssign/${this.PfFeatStatusEnum.OBJECT_ASSIGN}`),this.recordSupportability(`Generic/Polyfill/ObjectEntries/${this.PfFeatStatusEnum.OBJECT_ENTRIES}`)}eachSessionChecks(){a.il&&(0,r.bP)("pageshow",(e=>{e.persisted&&this.recordCustom("Custom/BFCache/PageRestored")}))}}var U=__webpack_require__(9011);const $=(0,e.n)(),H="lite";try{!function(e){if(g)return;const r=(0,f.gG)();a.v6&&(r.info.jsAttributes={...r.info.jsAttributes,isWorker:!0});try{(0,_.CX)(t.Z,r.info),(0,_.Dg)(t.Z,r.init),(0,_.GE)(t.Z,r.loader_config),(0,_.sU)(t.Z,{loaderType:e}),function(e){var t=(0,f.fP)(),r=c.ee.get(e),n=r.get("tracer"),i="api-",o=i+"ixn-";function a(){}(0,v.D)(["setErrorHandler","finished","addToTrace","inlineHit","addRelease"],(function(e,r){t[r]=u(i,r,!0,"api")})),t.addPageAction=u(i,"addPageAction",!0),t.setCurrentRouteName=u(i,"routeName",!0),t.setPageViewName=function(t,r){if("string"==typeof t)return"/"!==t.charAt(0)&&(t="/"+t),(0,_.OP)(e).customTransaction=(r||"https://web.archive.org/web/20230130210943/http://custom.transaction")+t,u(i,"setPageViewName",!0,"api")()},t.setCustomAttribute=function(t,r){const n=(0,_.C5)(e);return(0,_.CX)(e,{...n,jsAttributes:{...n.jsAttributes,[t]:r}}),u(i,"setCustomAttribute",!0,"api")()},t.interaction=function(){return(new a).get()};var s=a.prototype={createTracer:function(e,t){var i={},a=this,c="function"==typeof t;return(0,p.p)(o+"tracer",[(0,b.zO)(),e,i],a,void 0,r),function(){if(n.emit((c?"":"no-")+"fn-start",[(0,b.zO)(),a,c],i),c)try{return t.apply(this,arguments)}catch(e){throw n.emit("fn-err",[arguments,this,"string"==typeof e?new Error(e):e],i),e}finally{n.emit("fn-end",[(0,b.zO)()],i)}}}};function u(e,t,n,i){return function(){return(0,p.p)("record-supportability",["API/"+t+"/called"],void 0,void 0,r),(0,p.p)(e+t,[(0,b.zO)()].concat(l()(arguments)),n?null:this,i,r),n?void 0:this}}(0,v.D)("actionText,setName,setAttribute,save,ignore,onEnd,getContext,end,get".split(","),(function(e,t){s[t]=u(o,t)})),t.noticeError=function(e,t){"string"==typeof e&&(e=new Error(e)),(0,p.p)("record-supportability",["API/noticeError/called"],void 0,void 0,r),(0,p.p)("err",[e,(0,b.zO)(),!1,t],void 0,void 0,r)}}(t.Z),g=!0}catch(e){}}(H);const e=(0,U.K)(t.Z);e.page_view_event&&new y(t.Z),e.page_view_timing&&new P(t.Z),e.metrics&&new L(t.Z,$),function(e,t){let r=arguments.length>2&&void 0!==arguments[2]?arguments[2]:1e3;t?setTimeout((()=>u(e)),r):a.il?i((()=>u(e))):u(e)}(H)}catch(e){a.ZP?.newrelic?.ee?.abort&&a.ZP.newrelic.ee.abort()}})(),window.NRBA=__webpack_exports__})();</script> <noscript><style>form.antibot * :not(.antibot-message) { display: none !important; }</style> </noscript><script async src="https://web.archive.org/web/20230130210943js_/https://www.googletagmanager.com/gtag/js?id=UA-66610693-3"></script> <script>window.dataLayer = window.dataLayer || [];function gtag(){dataLayer.push(arguments)};gtag("js", new Date());gtag("set", "developer_id.dMDhkMT", true);gtag("config", "UA-66610693-3", {"groups":"default","anonymize_ip":true,"page_placeholder":"PLACEHOLDER_page_path","link_attribution":true,"allow_ad_personalization_signals":false,"custom_map":{"dimension2":"node_title","dimension3":"node_id","dimension7":"content_type"}});gtag("config", "G-HEQ0YF2VYL", {"groups":"default","page_placeholder":"PLACEHOLDER_page_location","link_attribution":true,"allow_ad_personalization_signals":false});gtag("config", "UA-33523145-1", {"groups":"default","anonymize_ip":true,"page_placeholder":"PLACEHOLDER_page_path","link_attribution":true,"allow_ad_personalization_signals":false,"custom_map":{"dimension2":"node_title","dimension3":"node_id","dimension7":"content_type"}});gtag("event", "custom", {"node_title":"Calibrations","node_id":"419986","content_type":"Laboratory\/Organizational Unit"});</script> <link rel="canonical" href="https://web.archive.org/web/20230130210943/https://www.nist.gov/calibrations"/> <link rel="shortlink" href="https://web.archive.org/web/20230130210943/https://www.nist.gov/node/419986"/> <meta name="description" content="The calibration services of the National Institute of Standards and Technology (NIST) are designed to help the makers and users of precision instruments achieve the highest possible levels of measurement quality and productivity."/> <meta name="dcterms.title" content="Calibrations"/> <meta name="dcterms.description" content="The calibration services of the National Institute of Standards and Technology (NIST) are designed to help the makers and users of precision instruments achieve the highest possible levels of measurement quality and productivity."/> <meta name="dcterms.date" content="2012-10-12T12:49-04:00"/> <meta name="dcterms.type" content="text"/> <meta name="dcterms.format" content="text/html"/> <meta name="dcterms.identifier" content="https://www.nist.gov/calibrations"/> <meta name="dcterms.source" content="NIST"/> <meta name="dcterms.created" content="2012-10-12T12:49-04:00"/> <meta name="dcterms.modified" content="2022-11-17T12:52-05:00"/> <meta name="citation_title" content="Calibrations | NIST"/> <meta property="og:site_name" content="NIST"/> <meta property="og:type" content="Article"/> <meta property="og:url" content="https://web.archive.org/web/20230130210943/https://www.nist.gov/calibrations"/> <meta property="og:title" content="Calibrations"/> <meta property="og:description" content="The calibration services of the National Institute of Standards and Technology (NIST) are designed to help the makers and users of precision instruments achieve the highest possible levels of measurement quality and productivity."/> <meta property="article:published_time" content="2012-10-12T12:49-04:00"/> <meta property="article:modified_time" content="2022-11-17T12:52-05:00"/> <meta name="google-site-verification" content="QMu0ODkER3rN5hLcMLqNVf7e3bkjYsNLTuhqfH48jCA"/> <meta name="twitter:card" content="summary_large_image"/> <meta name="twitter:site" content="NIST"/> <meta name="twitter:description" content="The calibration services of the National Institute of Standards and Technology (NIST) are designed to help the makers and users of precision instruments achieve the highest possible levels of measurement quality and productivity."/> <meta name="twitter:title" content="Calibrations"/> <meta name="twitter:url" content="https://web.archive.org/web/20230130210943im_/https://www.nist.gov/calibrations"/> <meta name="Generator" content="Drupal 9 (https://www.drupal.org)"/> <meta name="MobileOptimized" content="width"/> <meta name="HandheldFriendly" content="true"/> <meta name="viewport" content="width=device-width, initial-scale=1.0"/> <meta name="nist_search_modified" class="elastic" content="2022-11-17T12:52:00-05:00"/> <script type="application/ld+json">{ "@context": "https://web.archive.org/web/20230130210943/https://schema.org", "@graph": [ { "@type": "Article", "headline": "Calibrations | NIST", "description": "\u003Cp\u003EThe calibration services of the National Institute of Standards and Technology (NIST) are designed to help the makers and users of precision instruments achieve the highest possible levels of measurement quality and productivity.\u003C/p\u003E", "image": { "@type": "ImageObject", "representativeOfPage": "True" }, "datePublished": "2012-10-12T12:49-04:00", "dateModified": "2022-11-17T12:52-05:00" } ] }</script> <meta name="nist_search_bundle" class="elastic" content="laboratory_organizational_unit"/> <link rel="icon" href="/web/20230130210943im_/https://www.nist.gov/themes/custom/nist_www/favicon.ico" type="image/vnd.microsoft.icon"/> <title>Calibrations | NIST</title> <link rel="stylesheet" media="all" href="/web/20230130210943cs_/https://www.nist.gov/sites/default/files/css/css_GoWW7n3uRaUcun4S2-erRAYRkLmHlzlCTf9N7Gw3xRI.css"/> <link rel="stylesheet" media="screen" href="/web/20230130210943cs_/https://www.nist.gov/sites/default/files/css/css_gD8QmGaNfUQuThtjB-S0EwEOZZNJP1QfUU1bDdLHbMU.css"/> <link rel="stylesheet" media="print" href="/web/20230130210943cs_/https://www.nist.gov/sites/default/files/css/css_zbjDhj-AmeVwgu9y0DlPwEfp7l-a5BpoK3MpoGmRB6o.css"/> <link rel="stylesheet" media="all" href="/web/20230130210943cs_/https://www.nist.gov/sites/default/files/css/css_PV0KmreUx3hVeYI6yGypf71UDz9BSQl1Z5DjiESDh-Y.css"/> <link rel="stylesheet" media="screen" href="/web/20230130210943cs_/https://www.nist.gov/sites/default/files/css/css_e5DuZ68Yk6jKDRZI89Dctp-TrIyhXrRYettD_yNTSPA.css"/> <script src="/web/20230130210943js_/https://www.nist.gov/sites/default/files/js/js_VDwaIMNiRtzQn-NZvj1F9loIzJ-i4yEDiruzS8Z6Ejo.js"></script> </head> <body class="node-419986"> <a href="#main-content" class="visually-hidden focusable" data-elastic-exclude> Skip to main content </a> <div class="dialog-off-canvas-main-canvas" data-off-canvas-main-canvas>  <section data-elastic-exclude class="usa-banner" aria-label="Official government website"> <div class="usa-accordion"> <header class="usa-banner__header"> <div class="usa-banner__inner"> <div class="grid-col-auto"> <img class="usa-banner__header-flag" src="/web/20230130210943im_/https://www.nist.gov/libraries/nist-component-library/dist/img/us_flag_small.png" alt="U.S. flag"> </div> <div class="grid-col-fill tablet:grid-col-auto"> <p class="usa-banner__header-text">An official website of the United States government</p> <p class="usa-banner__header-action" aria-hidden="true">Here鈥檚 how you know</p> </div> <button class="usa-accordion__button usa-banner__button" aria-expanded="false" aria-controls="gov-banner-default"> <span class="usa-banner__button-text">Here鈥檚 how you know</span> </button> </div> </header> <div class="usa-banner__content usa-accordion__content" id="gov-banner-default"> <div class="grid-row grid-gap-lg"> <div class="usa-banner__guidance tablet:grid-col-6"> <img class="usa-banner__icon usa-media-block__img" src="/web/20230130210943im_/https://www.nist.gov/libraries/nist-component-library/dist/img/icon-dot-gov.svg" role="img" alt="" aria-hidden="true"> <div class="usa-media-block__body"> <p> <strong>Official websites use .gov</strong> <br/> A <strong>.gov</strong> website belongs to an official government organization in the United States. </p> </div> </div> <div class="usa-banner__guidance tablet:grid-col-6"> <img class="usa-banner__icon usa-media-block__img" src="/web/20230130210943im_/https://www.nist.gov/libraries/nist-component-library/dist/img/icon-https.svg" role="img" alt="" aria-hidden="true"> <div class="usa-media-block__body"> <p> <strong>Secure .gov websites use HTTPS</strong> <br/> A <strong>lock</strong> ( <span class="icon-lock"> <svg xmlns="http://www.w3.org/2000/svg" width="52" height="64" viewbox="0 0 52 64" class="usa-banner__lock-image" role="img" aria-labelledby="banner-lock-title banner-lock-description" focusable="false"> <title id="banner-lock-title">Lock</title> <desc id="banner-lock-description">A locked padlock</desc><path fill="#000000" fill-rule="evenodd" d="M26 0c10.493 0 19 8.507 19 19v9h3a4 4 0 0 1 4 4v28a4 4 0 0 1-4 4H4a4 4 0 0 1-4-4V32a4 4 0 0 1 4-4h3v-9C7 8.507 15.507 0 26 0zm0 8c-5.979 0-10.843 4.77-10.996 10.712L15 19v9h22v-9c0-6.075-4.925-11-11-11z"/></svg> </span> ) or <strong>https://</strong> means you鈥檝e safely connected to the .gov website. Share sensitive information only on official, secure websites. </p> </div> </div> </div> </div> </div> </section>  <div data-elastic-exclude>  <div class="nist-print-header" style="display:none;"> <p class="nist-print-header__url">https://www.nist.gov/calibrations</p> <img class="nist-print-header__logo" width="289" height="38" src="/web/20230130210943im_/https://www.nist.gov/libraries/nist-component-library/dist/img/logo/nist_logo_sidestack.svg" alt="National Institute of Standards and Technology"/> </div> <div class="usa-overlay"></div> <header class="usa-header nist-header--www nist-header--minimal" role="banner"> <div class="usa-navbar"> <div class="usa-logo flex-fill"> <a href="/web/20230130210943/https://www.nist.gov/" title="National Institute of Standards and Technology" aria-label="Home"> <img src="/web/20230130210943im_/https://www.nist.gov/libraries/nist-component-library/dist/img/logo/logo.svg" alt="National Institute of Standards and Technology" width="300px" height="80px"/> </a> </div> <div class="usa-header__right grid-row flex-auto"> <div class="grid-col-fill nist-header__search-group"> <form class="usa-search usa-search--small" accept-charset="UTF-8" action="/web/20230130210943/https://www.nist.gov/search" id="search_form" method="get"> <div role="search"> <label class="usa-sr-only" for="search-form">Search NIST</label> <input class="usa-input" id="search-form" type="search" name="s" placeholder="Search NIST" required="" maxlength="128"> <button class="usa-button" type="submit"><img src="/web/20230130210943im_/https://www.nist.gov/libraries/nist-component-library/dist/img/usa-icons-bg/search--white.svg" class="usa-search__submit-icon" alt="Search"></button> </div> </form> </div> <div class="grid-col-auto padding-left-1"> <button class="usa-menu-btn">Menu</button> </div> </div> </div> <nav aria-label="Primary navigation" class="usa-nav"> <div class="usa-nav__inner"> <button class="usa-nav__close">Close</button> <ul class="usa-nav__primary usa-accordion"> <li class="usa-nav__primary-item"> <button class="usa-accordion__button usa-nav__link" aria-expanded="false" aria-controls="primary_menu-1"><span>Topics</span></button> <div id="primary_menu-1" class="usa-nav__submenu usa-megamenu"> <div class="grid-row"> <div class="tablet:grid-col-fill"><ul class="usa-nav__submenu-list"> <li class="usa-nav__submenu-item"> <a href="/web/20230130210943/https://www.nist.gov/topics" class="usa-nav__link">All Topics</a> </li> <li class="usa-nav__submenu-item"> <a href="/web/20230130210943/https://www.nist.gov/advanced-communications" class="usa-nav__link">Advanced communications</a> </li> <li class="usa-nav__submenu-item"> <a href="/web/20230130210943/https://www.nist.gov/artificial-intelligence" class="usa-nav__link">Artificial intelligence</a> </li> <li class="usa-nav__submenu-item"> <a href="/web/20230130210943/https://www.nist.gov/bioscience" class="usa-nav__link">Bioscience</a> </li> <li class="usa-nav__submenu-item"> <a href="/web/20230130210943/https://www.nist.gov/buildings-construction" class="usa-nav__link">Buildings and construction</a> </li> <li class="usa-nav__submenu-item"> <a href="/web/20230130210943/https://www.nist.gov/chemistry" class="usa-nav__link">Chemistry</a> </li> <li class="usa-nav__submenu-item"> <a href="/web/20230130210943/https://www.nist.gov/climate" class="usa-nav__link">Climate</a> </li> <li class="usa-nav__submenu-item"> <a href="/web/20230130210943/https://www.nist.gov/cybersecurity" class="usa-nav__link">Cybersecurity</a> </li> <li class="usa-nav__submenu-item"> <a href="/web/20230130210943/https://www.nist.gov/electronics" class="usa-nav__link">Electronics</a> </li> <li class="usa-nav__submenu-item"> <a href="/web/20230130210943/https://www.nist.gov/energy" class="usa-nav__link">Energy</a> </li> </ul></div><div class="column-break tablet:grid-col-fill"><ul class="usa-nav__submenu-list"> <li class="usa-nav__submenu-item"> <a href="/web/20230130210943/https://www.nist.gov/environment" class="usa-nav__link">Environment</a> </li> <li class="usa-nav__submenu-item"> <a href="/web/20230130210943/https://www.nist.gov/fire" class="usa-nav__link">Fire</a> </li> <li class="usa-nav__submenu-item"> <a href="/web/20230130210943/https://www.nist.gov/forensic-science" class="usa-nav__link">Forensic science</a> </li> <li class="usa-nav__submenu-item"> <a href="/web/20230130210943/https://www.nist.gov/health" class="usa-nav__link">Health</a> </li> <li class="usa-nav__submenu-item"> <a href="/web/20230130210943/https://www.nist.gov/information-technology" class="usa-nav__link">Information technology</a> </li> <li class="usa-nav__submenu-item"> <a href="/web/20230130210943/https://www.nist.gov/infrastructure" class="usa-nav__link">Infrastructure</a> </li> <li class="usa-nav__submenu-item"> <a href="/web/20230130210943/https://www.nist.gov/manufacturing" class="usa-nav__link">Manufacturing</a> </li> <li class="usa-nav__submenu-item"> <a href="/web/20230130210943/https://www.nist.gov/materials" class="usa-nav__link">Materials</a> </li> <li class="usa-nav__submenu-item"> <a href="/web/20230130210943/https://www.nist.gov/mathematics-statistics" class="usa-nav__link">Mathematics and statistics</a> </li> </ul></div><div class="column-break tablet:grid-col-fill"><ul class="usa-nav__submenu-list"> <li class="usa-nav__submenu-item"> <a href="/web/20230130210943/https://www.nist.gov/metrology" class="usa-nav__link">Metrology</a> </li> <li class="usa-nav__submenu-item"> <a href="/web/20230130210943/https://www.nist.gov/nanotechnology" class="usa-nav__link">Nanotechnology</a> </li> <li class="usa-nav__submenu-item"> <a href="/web/20230130210943/https://www.nist.gov/neutron-research" class="usa-nav__link">Neutron research</a> </li> <li class="usa-nav__submenu-item"> <a href="/web/20230130210943/https://www.nist.gov/performance-excellence" class="usa-nav__link">Performance excellence</a> </li> <li class="usa-nav__submenu-item"> <a href="/web/20230130210943/https://www.nist.gov/physics" class="usa-nav__link">Physics</a> </li> <li class="usa-nav__submenu-item"> <a href="/web/20230130210943/https://www.nist.gov/public-safety" class="usa-nav__link">Public safety</a> </li> <li class="usa-nav__submenu-item"> <a href="/web/20230130210943/https://www.nist.gov/resilience" class="usa-nav__link">Resilience</a> </li> <li class="usa-nav__submenu-item"> <a href="/web/20230130210943/https://www.nist.gov/standards" class="usa-nav__link">Standards</a> </li> <li class="usa-nav__submenu-item"> <a href="/web/20230130210943/https://www.nist.gov/transportation" class="usa-nav__link">Transportation</a> </li> </ul> </div> </div> </div> </li> <li class="usa-nav__primary-item"> <a class="usa-nav__link" href="/web/20230130210943/https://www.nist.gov/publications">Publications</a> </li> <li class="usa-nav__primary-item"> <button class="usa-accordion__button usa-nav__link" aria-expanded="false" aria-controls="primary_menu-3"><span>Labs & Major Programs</span></button> <div id="primary_menu-3" class="usa-nav__submenu usa-megamenu"> <div class="grid-row"> <div class="tablet:grid-col-fill"><ul class="usa-nav__submenu-list"> <li class="usa-nav__submenu-item"> <a href="/web/20230130210943/https://www.nist.gov/labs-major-programs/laboratories" class="usa-nav__link">Laboratories</a> <ul class="usa-nav__submenu-list"> <li> <a href="/web/20230130210943/https://www.nist.gov/ctl" class="usa-nav__link">Communications Technology Laboratory</a> </li> <li> <a href="/web/20230130210943/https://www.nist.gov/el" class="usa-nav__link">Engineering Laboratory</a> </li> <li> <a href="/web/20230130210943/https://www.nist.gov/itl" class="usa-nav__link">Information Technology Laboratory</a> </li> <li> <a href="/web/20230130210943/https://www.nist.gov/mml" class="usa-nav__link">Material Measurement Laboratory</a> </li> <li> <a href="/web/20230130210943/https://www.nist.gov/pml" class="usa-nav__link">Physical Measurement Laboratory</a> </li> </ul> </li> </ul></div><div class="column-break tablet:grid-col-fill"><ul class="usa-nav__submenu-list"> <li class="usa-nav__submenu-item"> <a href="/web/20230130210943/https://www.nist.gov/labs-major-programs/user-facilities" class="usa-nav__link">User Facilities</a> <ul class="usa-nav__submenu-list"> <li> <a href="/web/20230130210943/https://www.nist.gov/ncnr" class="usa-nav__link">NIST Center for Neutron Research</a> </li> <li> <a href="/web/20230130210943/https://www.nist.gov/cnst" class="usa-nav__link">CNST NanoFab</a> </li> </ul> </li> <li class="usa-nav__submenu-item"> <a href="/web/20230130210943/https://www.nist.gov/labs-major-programs/research-test-beds" class="usa-nav__link">Research Test Beds</a> </li> <li class="usa-nav__submenu-item"> <a href="/web/20230130210943/https://www.nist.gov/laboratories/projects-programs" class="usa-nav__link">Research Projects</a> </li> <li class="usa-nav__submenu-item"> <a href="/web/20230130210943/https://www.nist.gov/laboratories/tools-instruments" class="usa-nav__link">Tools & Instruments</a> </li> </ul></div><div class="column-break tablet:grid-col-fill"><ul class="usa-nav__submenu-list"> <li class="usa-nav__submenu-item"> <a href="/web/20230130210943/https://www.nist.gov/labs-major-programs/major-programs" class="usa-nav__link">Major Programs</a> <ul class="usa-nav__submenu-list"> <li> <a href="/web/20230130210943/https://www.nist.gov/baldrige" class="usa-nav__link">Baldrige Performance Excellence Program</a> </li> <li> <a href="/web/20230130210943/https://www.nist.gov/chips" class="usa-nav__link">CHIPS for America Initiative</a> </li> <li> <a href="/web/20230130210943/https://www.nist.gov/mep" class="usa-nav__link">Manufacturing Extension Partnership (MEP)</a> </li> <li> <a href="/web/20230130210943/https://www.nist.gov/oam" class="usa-nav__link">Office of Advanced Manufacturing</a> </li> <li> <a href="/web/20230130210943/https://www.nist.gov/spo" class="usa-nav__link">Special Programs Office</a> </li> <li> <a href="/web/20230130210943/https://www.nist.gov/tpo" class="usa-nav__link">Technology Partnerships Office</a> </li> </ul> </li> </ul> </div> </div> </div> </li> <li class="usa-nav__primary-item"> <button class="usa-accordion__button usa-nav__link usa-current" aria-expanded="false" aria-controls="primary_menu-4"><span>Services & Resources</span></button> <div id="primary_menu-4" class="usa-nav__submenu usa-megamenu"> <div class="grid-row"> <div class="tablet:grid-col-fill"><ul class="usa-nav__submenu-list"> <li class="usa-nav__submenu-item"> <a href="/web/20230130210943/https://www.nist.gov/services-resources/standards-and-measurements" class="usa-nav__link usa-current">Standards and Measurements</a> <ul class="usa-nav__submenu-list"> <li> <a href="/web/20230130210943/https://www.nist.gov/calibrations" class="usa-nav__link usa-current">Calibration Services</a> </li> <li> <a href="/web/20230130210943/https://www.nist.gov/nvlap" class="usa-nav__link">Laboratory Accreditation (NVLAP)</a> </li> <li> <a href="/web/20230130210943/https://www.nist.gov/nist-quality-system" class="usa-nav__link">Quality System</a> </li> <li> <a href="/web/20230130210943/https://www.nist.gov/srm" class="usa-nav__link">Standard Reference Materials (SRMs)</a> </li> <li> <a href="/web/20230130210943/https://www.nist.gov/standardsgov" class="usa-nav__link">Standards.gov</a> </li> <li> <a href="/web/20230130210943/https://www.nist.gov/pml/time-and-frequency-division/time-services" class="usa-nav__link">Time Services</a> </li> <li> <a href="/web/20230130210943/https://www.nist.gov/pml/owm" class="usa-nav__link">Office of Weights and Measures</a> </li> </ul> </li> </ul></div><div class="column-break tablet:grid-col-fill"><ul class="usa-nav__submenu-list"> <li class="usa-nav__submenu-item"> <a href="/web/20230130210943/https://www.nist.gov/services-resources/software" class="usa-nav__link">Software</a> </li> <li class="usa-nav__submenu-item"> <a href="/web/20230130210943/https://www.nist.gov/data" class="usa-nav__link">Data</a> <ul class="usa-nav__submenu-list"> <li> <a href="https://web.archive.org/web/20230130210943/https://webbook.nist.gov/chemistry/" class="usa-nav__link">Chemistry WebBook</a> </li> <li> <a href="https://web.archive.org/web/20230130210943/https://nvd.nist.gov/" class="usa-nav__link">National Vulnerability Database</a> </li> <li> <a href="/web/20230130210943/https://www.nist.gov/pml/productsservices/physical-reference-data" class="usa-nav__link">Physical Reference Data</a> </li> <li> <a href="/web/20230130210943/https://www.nist.gov/srd" class="usa-nav__link">Standard Reference Data (SRD)</a> </li> </ul> </li> <li class="usa-nav__submenu-item"> <a href="https://web.archive.org/web/20230130210943/https://www.nist.gov/shop" class="usa-nav__link">Storefront</a> </li> <li class="usa-nav__submenu-item"> <a href="/web/20230130210943/https://www.nist.gov/tpo" class="usa-nav__link">License & Patents</a> </li> </ul></div><div class="column-break tablet:grid-col-fill"><ul class="usa-nav__submenu-list"> <li class="usa-nav__submenu-item"> <a href="https://web.archive.org/web/20230130210943/https://csrc.nist.gov/" class="usa-nav__link">Computer Security Resource Center (CSRC)</a> </li> <li class="usa-nav__submenu-item"> <a href="/web/20230130210943/https://www.nist.gov/nist-research-library" class="usa-nav__link">NIST Research Library</a> </li> </ul> </div> </div> </div> </li> <li class="usa-nav__primary-item"> <button class="usa-accordion__button usa-nav__link" aria-expanded="false" aria-controls="primary_menu-5"><span>News & Events</span></button> <div id="primary_menu-5" class="usa-nav__submenu usa-megamenu"> <div class="grid-row"> <div class="tablet:grid-col-fill"><ul class="usa-nav__submenu-list"> <li class="usa-nav__submenu-item"> <a href="/web/20230130210943/https://www.nist.gov/news-events/news" class="usa-nav__link">News</a> </li> <li class="usa-nav__submenu-item"> <a href="/web/20230130210943/https://www.nist.gov/news-events/events" class="usa-nav__link">Events</a> </li> <li class="usa-nav__submenu-item"> <a href="/web/20230130210943/https://www.nist.gov/blogs" class="usa-nav__link">Blogs</a> </li> <li class="usa-nav__submenu-item"> <a href="/web/20230130210943/https://www.nist.gov/feature-stories" class="usa-nav__link">Feature Stories</a> </li> <li class="usa-nav__submenu-item"> <a href="/web/20230130210943/https://www.nist.gov/awards" class="usa-nav__link">Awards</a> </li> </ul></div><div class="column-break tablet:grid-col-fill"><ul class="usa-nav__submenu-list"> <li class="usa-nav__submenu-item"> <a href="/web/20230130210943/https://www.nist.gov/video-gallery" class="usa-nav__link">Video Gallery</a> </li> <li class="usa-nav__submenu-item"> <a href="/web/20230130210943/https://www.nist.gov/image-gallery" class="usa-nav__link">Image Gallery</a> </li> <li class="usa-nav__submenu-item"> <a href="/web/20230130210943/https://www.nist.gov/director/pao/media-contacts" class="usa-nav__link">Media Contacts</a> </li> </ul> </div> </div> </div> </li> <li class="usa-nav__primary-item"> <button class="usa-accordion__button usa-nav__link" aria-expanded="false" aria-controls="primary_menu-6"><span>About NIST</span></button> <div id="primary_menu-6" class="usa-nav__submenu usa-megamenu"> <div class="grid-row"> <div class="tablet:grid-col-fill"><ul class="usa-nav__submenu-list"> <li class="usa-nav__submenu-item"> <a href="/web/20230130210943/https://www.nist.gov/about-nist" class="usa-nav__link">About Us</a> </li> <li class="usa-nav__submenu-item"> <a href="/web/20230130210943/https://www.nist.gov/about-nist/contact-us" class="usa-nav__link">Contact Us</a> </li> <li class="usa-nav__submenu-item"> <a href="/web/20230130210943/https://www.nist.gov/about-nist/visit" class="usa-nav__link">Visit</a> </li> <li class="usa-nav__submenu-item"> <a href="/web/20230130210943/https://www.nist.gov/careers" class="usa-nav__link">Careers</a> </li> <li class="usa-nav__submenu-item"> <a href="/web/20230130210943/https://www.nist.gov/director/nist-organization-structure" class="usa-nav__link">Our Organization</a> <ul class="usa-nav__submenu-list"> <li> <a href="/web/20230130210943/https://www.nist.gov/director" class="usa-nav__link">Office of the Director</a> </li> <li> <a href="/web/20230130210943/https://www.nist.gov/director/nist-organization-structure/budget-planning" class="usa-nav__link">Budget & Planning</a> </li> </ul> </li> </ul></div><div class="column-break tablet:grid-col-fill"><ul class="usa-nav__submenu-list"> <li class="usa-nav__submenu-item"> <a href="/web/20230130210943/https://www.nist.gov/about-nist/work-nist" class="usa-nav__link">Work with NIST</a> </li> <li class="usa-nav__submenu-item"> <a href="/web/20230130210943/https://www.nist.gov/history" class="usa-nav__link">History</a> <ul class="usa-nav__submenu-list"> <li> <a href="https://web.archive.org/web/20230130210943/http://nistdigitalarchives.contentdm.oclc.org/" class="usa-nav__link">NIST Digital Archives</a> </li> <li> <a href="/web/20230130210943/https://www.nist.gov/nist-museum" class="usa-nav__link">NIST Museum</a> </li> <li> <a href="/web/20230130210943/https://www.nist.gov/nist-and-nobel" class="usa-nav__link">NIST and the Nobel</a> </li> </ul> </li> <li class="usa-nav__submenu-item"> <a href="/web/20230130210943/https://www.nist.gov/education" class="usa-nav__link">Educational Resources</a> </li> </ul> </div> </div> </div> </li> </ul> </div> </nav> </header>  </div> <div class="grid-container"> <div data-drupal-messages-fallback class="hidden"></div> </div> <div id="block-nist-www-content" class="nist-block"> <section class="nist-page__content usa-section clearfix"> <a id="main-content" tabindex="-1"></a> <div class="nist-section-header nist-section-header--menu"> <div class="nist-section-header__main grid-container"> <div class="grid-row"> <div class="nist-section-header__title tablet-lg:grid-col-4"> <h1 class="nist-page__title">Calibrations</h1> </div> <div class="nist-section-header__desc tablet-lg:grid-col-8"> <div class="text-with-summary"> <p>The calibration services of the National Institute of Standards and Technology (NIST) are designed to help the makers and users of precision instruments achieve the highest possible levels of measurement quality and productivity.</p> </div> </div> </div> </div> </div> <div class="grid-container margin-top-4"> <div class="grid-row grid-gap-6"> <aside class="nist-page__region nist-page__region--sidebar-first tablet-lg:grid-col-4 desktop-lg:grid-col-3"> <div>  <div data-elastic-exclude="" class="nist-block"> <nav> <ul class="usa-sidenav usa-accordion "> <li class="usa-sidenav__item"> <a href="https://web.archive.org/web/20230130210943/https://www.surveymonkey.com/s/pml-calibrations" data-drupal-link-system-path="">CUSTOMER SURVEY</a> </li> <li class="usa-sidenav__item"> <a href="https://web.archive.org/web/20230130210943/https://shop.nist.gov/" data-drupal-link-system-path="">Shop the Catalog</a> </li> <li class="usa-sidenav__item"> <a href="/web/20230130210943/https://www.nist.gov/calibrations/helpful-links" data-drupal-link-system-path="">Helpful Links</a> </li> <li class="usa-sidenav__item"> <a href="/web/20230130210943/https://www.nist.gov/nvlap" data-drupal-link-system-path="">NVLAP</a> </li> <li class="usa-sidenav__item usa-sidenav__item--parent"> <a href="/web/20230130210943/https://www.nist.gov/calibrations/policies" data-drupal-link-system-path="">Policies</a> <button class="usa-accordion__button" aria-expanded="false" aria-controls="menu-calibrations-5"><span class="usa-sr-only">Expand or Collapse</span></button> <ul id="menu-calibrations-5" class="usa-sidenav__sublist usa-accordion"> <li class="usa-sidenav__item"> <a href="/web/20230130210943/https://www.nist.gov/calibrations/policies/calibrations-terms-and-conditions" data-drupal-link-system-path="">Calibrations Terms and Conditions</a> </li> <li class="usa-sidenav__item"> <a href="/web/20230130210943/https://www.nist.gov/calibrations/policies/instructions-domestic-customers" data-drupal-link-system-path="">Instructions for Domestic Customers</a> </li> <li class="usa-sidenav__item"> <a href="/web/20230130210943/https://www.nist.gov/calibrations/policies/instructions-foreign-customers" data-drupal-link-system-path="">Instructions for Foreign Customers</a> </li> <li class="usa-sidenav__item"> <a href="/web/20230130210943/https://www.nist.gov/calibrations/policies/pro-forma-invoice" data-drupal-link-system-path="">Pro Forma Invoice</a> </li> </ul> </li> <li class="usa-sidenav__item"> <a href="/web/20230130210943/https://www.nist.gov/calibrations/sp-250-publications" data-drupal-link-system-path="">SP 250 Publications</a> </li> <li class="usa-sidenav__item"> <a href="/web/20230130210943/https://www.nist.gov/calibrations/traceability" data-drupal-link-system-path="">Traceability</a> </li> </ul> </nav> </div>  </div> </aside> <div class="nist-page__region nist-page__region--content tablet-lg:grid-col-8 desktop-lg:grid-col-9"> <div class="nist-block"> <div class="nist-content-row nist-content-row--width-legible paragraph paragraph--type--text paragraph--view-mode--default"> <div class="nist-block text-long"><h2 class="nist-block__title">Shop for your Calibration Service on the New Storefront</h2> <p>On March 27, 2019, NIST introduced a new online shopping experience to order Calibration services. As NIST is committed to providing high quality products and services, we are sure you will enjoy this new customer experience! To access the new <a href="https://web.archive.org/web/20230130210943/https://shop.nist.gov/">NIST storefront</a> and shop for Calibration Services, <a href="https://web.archive.org/web/20230130210943/https://shop.nist.gov/">click here</a>. To place an order, be sure to check out the New Customer link and information on the <a href="https://web.archive.org/web/20230130210943/https://shop.nist.gov/">storefront homepage</a> and register for an account.</p> <p><strong>What if I Need Assistance?</strong></p> <p>If you have questions about ordering a measurement service, please email the <span class="spamspan"><span class="u">calibrations</span> [at] <span class="d">nist.gov</span><span class="t"> (Calibrations Group)</span></span> or聽call 1-866-NIST-SHOP (or 1-866-647-8746). You may also contact our NIST Calibration Administrators: <a href="https://web.archive.org/web/20230130210943/mailto:martin.wilson@nist.gov">Martin Wilson</a> - 301-975-2356, <span class="spamspan"><span class="u">wendy.bailey</span> [at] <span class="d">nist.gov</span><span class="t"> (Wendy Bailey)</span></span> -聽303-497-3842, or聽<a href="https://web.archive.org/web/20230130210943/mailto:john.lomax@nist.gov">John Lomax</a> -聽303-229-2242.</p> <h2 class="nist-block__title">Who Do I Call?</h2> <p>If you have difficulty finding a contact for your measurement service need or you need administrative assistance, please call <strong>1-866-NIST-SHOP (or 1-866-647-8746)</strong>. If you prefer, you can send email to the <strong><span class="spamspan"><span class="u">calibrations</span> [at] <span class="d">nist.gov</span><span class="t"> (Calibrations Group)</span></span></strong>.</p> <div class="nist-callout"> <h2>Metrologist positions at NIST</h2> <p><a data-entity-substitution="canonical" data-entity-type="media" data-entity-uuid="7e463f79-e9ff-41a9-bd0e-e2c9138f1362" href="/web/20230130210943/https://www.nist.gov/document/metrologist-positions-pmlpdf" title="Metrologist positions for PML.pdf" class="media-link-ga " data-file-url="https://www.nist.gov/system/files/documents/2022/11/17/Metrologist%20positions%20for%20PML.pdf">Read the position statement >></a></p> </div></div> </div> </div> </div> </div> </div> <div class="grid-row"> <div class="nist-resource-block nist-resource-block--first tablet:grid-col"> <div class="nist-resource-block__title-bar"> <div class="nist-resource-block__title"> <div class="nist-resource-block__icon"> <img aria-hidden="true" role="img" alt="decorative icon" src="/web/20230130210943im_/https://www.nist.gov/themes/custom/nist_www/img/resource-icons/product-icon-2x.png"/> </div> <h2> <div class="string">Calibrations Customer Survey</div> </h2> </div> </div> <div class="nist-resource-block__content"> <div class="nist-block"> <div class="text-long"><p><a href="https://web.archive.org/web/20230130210943/https://www.surveymonkey.com/s/pml-calibrations">Calibrations Customer Survey</a> Permissions: OMB Control No. 0693-0031 | OMB Expiration Date: August 31, 2024.聽This collection of information contains Paperwork Reduction Act (PRA) requirements approved by the Office of Management and Budget (OMB). A Federal agency may not conduct or sponsor, and a person is not required to respond to, nor shall a person be subject to a penalty for failure to comply with an information collection subject to the requirements of the Paperwork Reduction Act of 1995 unless the information collection has a currently valid OMB Control Number. The approved OMB Control Number for this information collection is 0693-0031. Without this approval, we could not conduct this survey/information collection. Public reporting for this information collection is estimated to be approximately 15 minutes per response, including the time for reviewing instructions, searching existing data sources, gathering and maintaining the data needed, and completing and reviewing the information collection. All responses to this information collection are voluntary/mandatory/required to obtain benefits. Send comments regarding this burden estimate or any other aspect of this information collection, including suggestions for reducing this burden to the National Institute of Standards and Technology, Attn: James Fedchak, 100 Bureau Dr., Gaithersburg MD 20899 or <span class="spamspan"><span class="u">james.fedchak</span> [at] <span class="d">nist.gov</span></span>.</p></div> </div> </div> </div> <div class="nist-resource-block nist-resource-block--second nist-resource-block--green tablet:grid-col"> <div class="nist-resource-block__title-bar"> <div class="nist-resource-block__title"> <div class="nist-resource-block__icon"> <img aria-hidden="true" role="img" alt="decorative icon" src="/web/20230130210943im_/https://www.nist.gov/themes/custom/nist_www/img/resource-icons/link-icon-2x.png"/> </div> <h2> <div class="string">Policies</div> </h2> </div> </div> <div class="nist-resource-block__content"> <div class="nist-block"> <div class="text-long"><ul><li><a href="https://web.archive.org/web/20230130210943/https://www.nist.gov/calibrations/policies/pro-forma-invoice">Pro Forma Invoice</a></li> <li><a href="https://web.archive.org/web/20230130210943/https://www.nist.gov/calibrations/policies/instructions-domestic-customers">Instructions for Domestic Customers</a></li> <li><a href="https://web.archive.org/web/20230130210943/https://www.nist.gov/calibrations/policies/instructions-foreign-customers">Instructions for Foreign Customers</a></li> </ul></div> </div> </div> </div> </div> <div class="grid-container"> <div class="nist-page__region nist-page__region--content-bottom"> <div class="nist-block nist-block--contact"> <h2 class="nist-block__title">Contacts</h2> <div class="nist-contact"> <h3 class="nist-contact__heading">Calibration Administrators</h3> <ul class="nist-contact__items"> <li role="article" about="/people/martin-l-wilson" class="nist-contact__item"> <div class="nist-contact__name"><a href="/web/20230130210943/https://www.nist.gov/people/martin-l-wilson" title="View staff profile page">Martin L. Wilson</a></div> <div> <a href="https://web.archive.org/web/20230130210943/mailto:martin.wilson@nist.gov">martin.wilson@nist.gov</a> </div> <div> (301) 975-2356 </div> </li> <li role="article" about="/people/john-lomax" class="nist-contact__item"> <div class="nist-contact__name"><a href="/web/20230130210943/https://www.nist.gov/people/john-lomax" title="View staff profile page">John Lomax</a></div> <div> <a href="https://web.archive.org/web/20230130210943/mailto:john.lomax@nist.gov">john.lomax@nist.gov</a> </div> <div> (303) 229-2242 </div> </li> <li role="article" about="/people/wendy-bailey" class="nist-contact__item"> <div class="nist-contact__name"><a href="/web/20230130210943/https://www.nist.gov/people/wendy-bailey" title="View staff profile page">Wendy Bailey</a></div> <div> <a href="https://web.archive.org/web/20230130210943/mailto:wendy.bailey@nist.gov">wendy.bailey@nist.gov</a> </div> <div> (303) 386-2258 </div> </li> </ul> </div> <div class="nist-contact"> <h3 class="nist-contact__heading">Shipping and Receiving Coordinator and General Inquiries</h3> <ul class="nist-contact__items"> <li role="article" about="/people/roy-w-dorsey" class="nist-contact__item"> <div class="nist-contact__name"><a href="/web/20230130210943/https://www.nist.gov/people/roy-w-dorsey" title="View staff profile page">Roy W. Dorsey</a></div> <div> <a href="https://web.archive.org/web/20230130210943/mailto:roy.dorsey@nist.gov">roy.dorsey@nist.gov</a> </div> <div> (301) 975-4941 </div> </li> <li class="nist-contact__item"> <div class="nist-contact__name"> Calibrations Group </div> <div> <a href="https://web.archive.org/web/20230130210943/mailto:calibrations@nist.gov">calibrations@nist.gov</a> </div> <div> (301) 975-5454 </div> <div> </div> </li> </ul> </div> <div class="nist-contact"> <h3 class="nist-contact__heading">Associate Director for Measurement Services</h3> <ul class="nist-contact__items"> <li role="article" about="/people/james-fedchak" class="nist-contact__item"> <div class="nist-contact__name"><a href="/web/20230130210943/https://www.nist.gov/people/james-fedchak" title="View staff profile page">James A. Fedchak</a></div> <div> <a href="https://web.archive.org/web/20230130210943/mailto:james.fedchak@nist.gov">james.fedchak@nist.gov</a> </div> <div> (301) 975-2223 </div> </li> </ul> </div> </div> </div> </div> </section> </div> <div data-elastic-exclude>  <footer class="nist-footer padding-bottom-4"> <div class="grid-container nist-footer__info"> <div class="grid-row"> <div class="tablet:grid-col-6"> <div class="nist-footer__logo"> <a href="/web/20230130210943/https://www.nist.gov/" title="National Institute of Standards and Technology" rel="home"> <img class="nist-footer__logo-img" src="/web/20230130210943im_/https://www.nist.gov/libraries/nist-component-library/dist/img/logo/NIST-Logo-Brand-White.svg" alt="National Institute of Standards and Technology logo" width="300px" height="42px"/> </a> </div> <div class="nist-footer__contact"> <h3 class="nist-footer__contact-heading">HEADQUARTERS</h3> <address> 100 Bureau Drive<br> Gaithersburg, MD 20899<br> <a href="https://web.archive.org/web/20230130210943/tel:301-975-2000">301-975-2000</a> </address> <p> <a href="https://web.archive.org/web/20230130210943/mailto:do-webmaster@nist.gov">Webmaster</a> | <a href="https://web.archive.org/web/20230130210943/https://www.nist.gov/about-nist/contact-us">Contact Us</a> | <a href="https://web.archive.org/web/20230130210943/https://www.nist.gov/visit">Our Other Offices</a> </p> </div> </div> <div class="tablet:grid-col-6"> <div class="nist-footer__social-links"> <a class="nist-social nist-social--twitter-white" href="https://web.archive.org/web/20230130210943/https://twitter.com/NIST"> <span>Twitter</span> </a> <a class="nist-social nist-social--facebook-white" href="https://web.archive.org/web/20230130210943/https://www.facebook.com/NIST"> <span>Facebook</span> </a> <a class="nist-social nist-social--linkedin-white" href="https://web.archive.org/web/20230130210943/https://www.linkedin.com/company/nist"> <span>LinkedIn</span> </a> <a class="nist-social nist-social--instagram-white" href="https://web.archive.org/web/20230130210943/https://www.instagram.com/nist/"> <span>Instagram</span> </a> <a class="nist-social nist-social--youtube-white" href="https://web.archive.org/web/20230130210943/https://www.youtube.com/NIST"> <span>YouTube</span> </a> <a class="nist-social nist-social--giphy-white" href="https://web.archive.org/web/20230130210943/https://giphy.com/nist"> <span>Giphy</span> </a> <a class="nist-social nist-social--rss-white" href="https://web.archive.org/web/20230130210943/https://www.nist.gov/news-events/nist-rss-feeds"> <span>RSS Feed</span> </a> <a class="nist-social nist-social--envelope-white" href="https://web.archive.org/web/20230130210943/https://public.govdelivery.com/accounts/USNIST/subscriber/new"> <span>Mailing List</span> </a> </div> <div class="nist-footer__feedback"> How are we doing? <a class="usa-button" rel="nofollow" href="/web/20230130210943/https://www.nist.gov/form/nist-gov-feedback?destination=/calibrations" title="Provide feedback">Feedback</a> </div> </div> </div> </div> <div class="grid-container"> <div class="nist-footer__nav" role="navigation"> <ul> <li class="nist-footer__menu-item"> <a href="https://web.archive.org/web/20230130210943/https://www.nist.gov/privacy-policy">Site Privacy</a> </li> <li class="nist-footer__menu-item"> <a href="https://web.archive.org/web/20230130210943/https://www.nist.gov/oism/accessibility">Accessibility</a> </li> <li class="nist-footer__menu-item"> <a href="https://web.archive.org/web/20230130210943/https://www.nist.gov/privacy">Privacy Program</a> </li> <li class="nist-footer__menu-item"> <a href="https://web.archive.org/web/20230130210943/https://www.nist.gov/oism/copyrights">Copyrights</a> </li> <li class="nist-footer__menu-item"> <a href="https://web.archive.org/web/20230130210943/https://www.commerce.gov/vulnerability-disclosure-policy">Vulnerability Disclosure</a> </li> <li class="nist-footer__menu-item"> <a href="https://web.archive.org/web/20230130210943/https://www.nist.gov/no-fear-act-policy">No Fear Act Policy</a> </li> <li class="nist-footer__menu-item"> <a href="https://web.archive.org/web/20230130210943/https://www.nist.gov/office-director/freedom-information-act">FOIA</a> </li> <li class="nist-footer__menu-item"> <a href="https://web.archive.org/web/20230130210943/https://www.nist.gov/environmental-policy-statement">Environmental Policy</a> </li> <li class="nist-footer__menu-item"> <a href="https://web.archive.org/web/20230130210943/https://www.nist.gov/summary-report-scientific-integrity">Scientific Integrity</a> </li> <li class="nist-footer__menu-item"> <a href="https://web.archive.org/web/20230130210943/https://www.nist.gov/nist-information-quality-standards">Information Quality Standards</a> </li> <li class="nist-footer__menu-item"> <a href="https://web.archive.org/web/20230130210943/https://www.commerce.gov/">Commerce.gov</a> </li> <li class="nist-footer__menu-item"> <a href="https://web.archive.org/web/20230130210943/http://www.science.gov/">Science.gov</a> </li> <li class="nist-footer__menu-item"> <a href="https://web.archive.org/web/20230130210943/http://www.usa.gov/">USA.gov</a> </li> <li class="nist-footer__menu-item"> <a href="https://web.archive.org/web/20230130210943/https://vote.gov/">Vote.gov</a> </li> </ul> </div> </div> </footer>  </div> </div> <script type="application/json" data-drupal-selector="drupal-settings-json">{"path":{"baseUrl":"\/","scriptPath":null,"pathPrefix":"","currentPath":"node\/419986","currentPathIsAdmin":false,"isFront":false,"currentLanguage":"en"},"pluralDelimiter":"\u0003","suppressDeprecationErrors":true,"back_to_top":{"back_to_top_button_trigger":100,"back_to_top_prevent_on_mobile":false,"back_to_top_prevent_in_admin":true,"back_to_top_button_type":"image","back_to_top_button_text":"Back to top"},"google_analytics":{"account":"UA-66610693-3","trackOutbound":true,"trackMailto":true,"trackTel":true,"trackDownload":true,"trackDownloadExtensions":"7z|aac|arc|arj|asf|asx|avi|bin|bsh|c|csv|doc(x|m)?|dot(x|m)?|dw(fx|g|gd)|dxf|eps|epub|exe|f(90)|flv|gif|gz|gzip|hqx|jar|jpe?g|js|m1v|mp(2|3|4|e?g)|mobi|mov(ie)?|msi|msp|pdf|phps|pl|png|ppt(x|m)?|pot(x|m)?|pps(x|m)?|ppam|sld(x|m)?|thmx|qtm?|ra(m|r)?|rfa|rtf|rvt|sch|sea|sit|swf|tar|tgz|tif|txt|txz|wav|wma|wmv|wpd|wrl|xls(x|m|b)?|xlt(x|m)|xlam|xml|xsd|z|zip","trackDomainMode":1},"nist_search":{"clickTracking":"search-report-click","isDebug":false,"clickTrackEnabled":true,"message":"NIST Search in debug mode. Check the browsers network inspector for Click Track reporting results..."},"data":{"extlink":{"extTarget":false,"extTargetNoOverride":false,"extNofollow":false,"extNoreferrer":false,"extFollowNoOverride":false,"extClass":"ext","extLabel":"(link is external)","extImgClass":false,"extSubdomains":true,"extExclude":"\\.gov\\\/|\\.mil\\\/|\\manufacturingusa\\.com\\\/","extInclude":"","extCssExclude":"","extCssExplicit":"","extAlert":true,"extAlertText":"Thank you for visiting NIST. We hope your visit was informative. We have provided a link to this site because it has information that may be of interest to our users. NIST does not necessarily endorse the views expressed or the facts presented on this site. Further, NIST does not endorse any commercial products that may be advertised or available on this site. Click OK to be directed to your link.","mailtoClass":"0","mailtoLabel":"(link sends email)","extUseFontAwesome":false,"extIconPlacement":"append","extFaLinkClasses":"fa fa-external-link","extFaMailtoClasses":"fa fa-envelope-o","whitelistedDomains":[]}},"user":{"uid":0,"permissionsHash":"582eea317b4636ab5a0dffc8c6a006df3d6901ea5610498a0bbefc925ea1da0f"}}</script> <script src="/web/20230130210943js_/https://www.nist.gov/sites/default/files/js/js_DNL6VrEuHPrL959oUExCzGY3A7BXQIMYib7aZLaICi4.js"></script> <script src="https://web.archive.org/web/20230130210943js_/https://siteimproveanalytics.com/js/siteanalyze_6017546.js" async></script> <script src="/web/20230130210943js_/https://www.nist.gov/sites/default/files/js/js_HAbMyDHFOPOmorkD81ATdabMPiBH07YEFRiKN_uGsf0.js"></script> <script type="text/javascript">window.NREUM||(NREUM={});NREUM.info={"beacon":"gov-bam.nr-data.net","licenseKey":"37b7ccb661","applicationID":"1089704227","transactionName":"YFxUN0sADEdYVkBaClkWdwBNCA1aFkVVVABoWlcAUQQ=","queueTime":0,"applicationTime":55,"atts":"TBtXQQMaH0k=","errorBeacon":"gov-bam.nr-data.net","agent":""}</script></body> </html>

CINXE.COM

Calibrations | NIST