CINXE.COM

Laboratories | NIST

<!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/labs-major-programs/laboratories","20230330190938","https://web.archive.org/","web","/_static/", "1680203378"); </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" /> <!-- End Wayback Rewrite JS Include --> <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 e,t,r={9071:(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])},6562:(e,t,r)=>{"use strict";r.d(t,{P_:()=>v,Mt:()=>p,C5:()=>d,DL:()=>y,OP:()=>N,lF:()=>M,Yu:()=>A,Dg:()=>h,CX:()=>f,GE:()=>w,sU:()=>R});var n={};r.r(n),r.d(n,{agent:()=>E,match:()=>D,version:()=>x});var i=r(6797),o=r(909),a=r(8610);class s{constructor(e,t){try{if(!e||"object"!=typeof e)return(0,a.Z)("New setting a Configurable requires an object as input");if(!t||"object"!=typeof t)return(0,a.Z)("Setting a Configurable requires a model to set its initial properties");Object.assign(this,t),Object.entries(e).forEach((e=>{let[t,r]=e;const n=(0,o.q)(t);n.length&&r&&"object"==typeof r&&n.forEach((e=>{e in r&&((0,a.Z)('"'.concat(e,'" is a protected attribute and can not be changed in feature ').concat(t,". It will have no effect.")),delete r[e])})),this[t]=r}))}catch(e){(0,a.Z)("An error occured while setting a Configurable",e)}}}const c={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},u={};function d(e){if(!e)throw new Error("All info objects require an agent identifier!");if(!u[e])throw new Error("Info for ".concat(e," was never set"));return u[e]}function f(e,t){if(!e)throw new Error("All info objects require an agent identifier!");u[e]=new s(t,c),(0,i.Qy)(e,u[e],"info")}const l={allow_bfcache:!0,privacy:{cookies_enabled:!0},ajax:{deny_list:void 0,enabled:!0,harvestTimeSeconds:10},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,harvestTimeSeconds:10},metrics:{enabled:!0},page_action:{enabled:!0,harvestTimeSeconds:30},page_view_event:{enabled:!0},page_view_timing:{enabled:!0,harvestTimeSeconds:30,long_task:!1},session_trace:{enabled:!0,harvestTimeSeconds:10},spa:{enabled:!0,harvestTimeSeconds:10}},g={};function v(e){if(!e)throw new Error("All configuration objects require an agent identifier!");if(!g[e])throw new Error("Configuration for ".concat(e," was never set"));return g[e]}function h(e,t){if(!e)throw new Error("All configuration objects require an agent identifier!");g[e]=new s(t,l),(0,i.Qy)(e,g[e],"config")}function p(e,t){if(!e)throw new Error("All configuration objects require an agent identifier!");var r=v(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 m={accountID:void 0,trustKey:void 0,agentID:void 0,licenseKey:void 0,applicationID:void 0,xpid:void 0},b={};function y(e){if(!e)throw new Error("All loader-config objects require an agent identifier!");if(!b[e])throw new Error("LoaderConfig for ".concat(e," was never set"));return b[e]}function w(e,t){if(!e)throw new Error("All loader-config objects require an agent identifier!");b[e]=new s(t,m),(0,i.Qy)(e,b[e],"loader_config")}const A=(0,i.mF)().o;var E=null,x=null;if(navigator.userAgent){var T=navigator.userAgent,_=T.match(/Version\/(\S+)\s+Safari/);_&&-1===T.indexOf("Chrome")&&-1===T.indexOf("Chromium")&&(E="Safari",x=_[1])}function D(e,t){if(!E)return!1;if(e!==E)return!1;if(!t)return!0;if(!x)return!1;for(var r=x.split("."),n=t.split("."),i=0;i<n.length;i++)if(n[i]!==r[i])return!1;return!0}var j=r(5526),P=r(2374);const k="NRBA_SESSION_ID";function O(){if(!P.il)return null;try{let e;return null===(e=window.sessionStorage.getItem(k))&&(e=(0,j.ky)(16),window.sessionStorage.setItem(k,e)),e}catch(e){return null}}var S=r(8226);const I=e=>({customTransaction:void 0,disabled:!1,isolatedBacklog:!1,loaderType:void 0,maxBytes:3e4,offset:Math.floor(P._A?.performance?.timeOrigin||P._A?.performance?.timing?.navigationStart||Date.now()),onerror:void 0,origin:""+P._A.location,ptid:void 0,releaseIds:{},sessionId:1==p(e,"privacy.cookies_enabled")?O():null,xhrWrappable:"function"==typeof P._A.XMLHttpRequest?.prototype?.addEventListener,userAgent:n,version:S.q}),C={};function N(e){if(!e)throw new Error("All runtime objects require an agent identifier!");if(!C[e])throw new Error("Runtime for ".concat(e," was never set"));return C[e]}function R(e,t){if(!e)throw new Error("All runtime objects require an agent identifier!");C[e]=new s(t,I(e)),(0,i.Qy)(e,C[e],"runtime")}function M(e){return function(e){try{const t=d(e);return!!t.licenseKey&&!!t.errorBeacon&&!!t.applicationID}catch(e){return!1}}(e)}},8226:(e,t,r)=>{"use strict";r.d(t,{q:()=>n});const n="1228.PROD"},9557:(e,t,r)=>{"use strict";r.d(t,{w:()=>o});var n=r(8610);const i={agentIdentifier:""};class o{constructor(e){try{if("object"!=typeof e)return(0,n.Z)("shared context requires an object as input");this.sharedContext={},Object.assign(this.sharedContext,i),Object.entries(e).forEach((e=>{let[t,r]=e;Object.keys(i).includes(t)&&(this.sharedContext[t]=r)}))}catch(e){(0,n.Z)("An error occured while setting SharedContext",e)}}}},4329:(e,t,r)=>{"use strict";r.d(t,{L:()=>d,R:()=>c});var n=r(3752),i=r(7022),o=r(4045),a=r(2325);const s={};function c(e,t){const r={staged:!1,priority:a.p[t]||0};u(e),s[e].get(t)||s[e].set(t,r)}function u(e){e&&(s[e]||(s[e]=new Map))}function d(){let e=arguments.length>0&&void 0!==arguments[0]?arguments[0]:"",t=arguments.length>1&&void 0!==arguments[1]?arguments[1]:"feature";if(u(e),!e||!s[e].get(t))return a(t);s[e].get(t).staged=!0;const r=Array.from(s[e]);function a(t){const r=e?n.ee.get(e):n.ee,a=o.X.handlers;if(r.backlog&&a){var s=r.backlog[t],c=a[t];if(c){for(var u=0;s&&u<s.length;++u)f(s[u],c);(0,i.D)(c,(function(e,t){(0,i.D)(t,(function(t,r){r[0].on(e,r[1])}))}))}delete a[t],r.backlog[t]=null,r.emit("drain-"+t,[])}}r.every((e=>{let[t,r]=e;return r.staged}))&&(r.sort(((e,t)=>e[1].priority-t[1].priority)),r.forEach((e=>{let[t]=e;a(t)})))}function f(e,t){var r=e[1];(0,i.D)(t[r],(function(t,r){var n=e[0];if(r[0]===n){var i=r[1],o=e[3],a=e[2];i.apply(o,a)}}))}},3752:(e,t,r)=>{"use strict";r.d(t,{ee:()=>u});var n=r(6797),i=r(3916),o=r(7022),a=r(6562),s="nr@context";let c=(0,n.fP)();var u;function d(){}function f(){return new d}function l(){u.aborted=!0,u.backlog={}}c.ee?u=c.ee:(u=function e(t,r){var n={},c={},g={},v=!1;try{v=16===r.length&&(0,a.OP)(r).isolatedBacklog}catch(e){}var h={on:b,addEventListener:b,removeEventListener:y,emit:m,get:A,listeners:w,context:p,buffer:E,abort:l,aborted:!1,isBuffering:x,debugId:r,backlog:v?{}:t&&"object"==typeof t.backlog?t.backlog:{}};return h;function p(e){return e&&e instanceof d?e:e?(0,i.X)(e,s,f):f()}function m(e,r,n,i,o){if(!1!==o&&(o=!0),!u.aborted||i){t&&o&&t.emit(e,r,n);for(var a=p(n),s=w(e),d=s.length,f=0;f<d;f++)s[f].apply(a,r);var l=T()[c[e]];return l&&l.push([h,e,r,a]),a}}function b(e,t){n[e]=w(e).concat(t)}function y(e,t){var r=n[e];if(r)for(var i=0;i<r.length;i++)r[i]===t&&r.splice(i,1)}function w(e){return n[e]||[]}function A(t){return g[t]=g[t]||e(h,t)}function E(e,t){var r=T();h.aborted||(0,o.D)(e,(function(e,n){t=t||"feature",c[n]=t,t in r||(r[t]=[])}))}function x(e){return!!T()[c[e]]}function T(){return h.backlog}}(void 0,"globalEE"),c.ee=u)},9252:(e,t,r)=>{"use strict";r.d(t,{E:()=>n,p:()=>i});var n=r(3752).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))}},4045:(e,t,r)=>{"use strict";r.d(t,{X:()=>o});var n=r(9252);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])}},8544:(e,t,r)=>{"use strict";r.d(t,{bP:()=>s,iz:()=>c,m$:()=>a});var n=r(2374);let i=!1,o=!1;try{const e={get passive(){return i=!0,!1},get signal(){return o=!0,!1}};n._A.addEventListener("test",null,e),n._A.removeEventListener("test",null,e)}catch(e){}function a(e,t){return i||o?{capture:!!e,passive:i,signal:t}:!!e}function s(e,t){let r=arguments.length>2&&void 0!==arguments[2]&&arguments[2];window.addEventListener(e,t,a(r))}function c(e,t){let r=arguments.length>2&&void 0!==arguments[2]&&arguments[2];document.addEventListener(e,t,a(r))}},5526:(e,t,r)=>{"use strict";r.d(t,{Rl:()=>i,ky:()=>o});var n=r(2374);function i(){var e=null,t=0,r=n._A?.crypto||n._A?.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",s="",c=0;c<a.length;c++)s+="x"===(o=a[c])?i().toString(16):"y"===o?(o=3&i()|8).toString(16):o;return s}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}}},2053:(e,t,r)=>{"use strict";r.d(t,{B:()=>n,z:()=>i});const n=(new Date).getTime();function i(){return Math.round(performance.now())}},8283:(e,t,r)=>{"use strict";r.d(t,{B:()=>a,L:()=>s});var n=r(6562),i=r(2053),o={};function a(e,t,r){void 0===r&&(r=(0,i.z)()+(0,n.OP)(e).offset),o[e]=o[e]||{},o[e][t]=r}function s(e,t,r,n){const i=e.sharedContext.agentIdentifier;var a=o[i]?.[r],s=o[i]?.[n];void 0!==a&&void 0!==s&&e.store("measures",t,{value:s-a})}},2545:(e,t,r)=>{"use strict";r.d(t,{L:()=>c});var n=r(9071),i=r(8544),o=r(8305),a=r(2374),s=r(6998);if(a.v6){a._A.cleanupTasks=[];const e=a._A.close;a._A.close=()=>{for(let e of a._A.cleanupTasks)e();e()}}function c(e,t){if(a.il)if(t)(0,s.N)(e,!0),(0,i.bP)("pagehide",e);else{var r=(0,o.Z)(e);!n.I||navigator.sendBeacon?(0,i.bP)("pagehide",r):(0,i.bP)("beforeunload",r),(0,i.bP)("unload",r)}else a.v6&&a._A.cleanupTasks.push(e)}},8610:(e,t,r)=>{"use strict";function n(e,t){console&&console.warn&&"function"==typeof console.warn&&(console.warn("New Relic: ".concat(e)),t&&console.warn(t))}r.d(t,{Z:()=>n})},3916:(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}},2374:(e,t,r)=>{"use strict";r.d(t,{_A:()=>o,il:()=>n,lW:()=>a,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".')})();function a(){return o}},7022:(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}},8305:(e,t,r)=>{"use strict";r.d(t,{Z:()=>o});var n=r(8683),i=r.n(n);function o(e){var t,r=!1;return function(){return r?t:(r=!0,t=e.apply(this,i()(arguments)))}}},2438:(e,t,r)=>{"use strict";r.d(t,{P:()=>o});var n=r(3752);const i=()=>{const e=new WeakSet;return(t,r)=>{if("object"==typeof r&&null!==r){if(e.has(r))return;e.add(r)}return r}};function o(e){try{return JSON.stringify(e,i())}catch(e){try{n.ee.emit("internal-error",[e])}catch(e){}}}},2650:(e,t,r)=>{"use strict";r.d(t,{K:()=>a,b:()=>o});var n=r(8544);function i(){return"undefined"==typeof document||"complete"===document.readyState}function o(e,t){if(i())return e();(0,n.bP)("load",e,t)}function a(e){if(i())return e();(0,n.iz)("DOMContentLoaded",e)}},6797:(e,t,r)=>{"use strict";r.d(t,{EZ:()=>u,Qy:()=>c,ce:()=>o,fP:()=>a,gG:()=>d,mF:()=>s});var n=r(2053),i=r(2374);const o={beacon:"bam.nr-data.net",errorBeacon:"bam.nr-data.net"};function a(){return i._A.NREUM||(i._A.NREUM={}),void 0===i._A.newrelic&&(i._A.newrelic=i._A.NREUM),i._A.NREUM}function s(){let e=a();return e.o||(e.o={ST:i._A.setTimeout,SI:i._A.setImmediate,CT:i._A.clearTimeout,XHR:i._A.XMLHttpRequest,REQ:i._A.Request,EV:i._A.Event,PR:i._A.Promise,MO:i._A.MutationObserver,FETCH:i._A.fetch}),e}function c(e,t,r){let i=a();const o=i.initializedAgents||{},s=o[e]||{};return Object.keys(s).length||(s.initializedAt={ms:(0,n.z)(),date:new Date}),i.initializedAgents={...o,[e]:{...s,[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}}(),s(),function(){let e=a();const t=e.loader_config||{};e.loader_config={...t}}(),a()}},6998:(e,t,r)=>{"use strict";r.d(t,{N:()=>i,e:()=>o});var n=r(8544);function i(e){let t=arguments.length>1&&void 0!==arguments[1]&&arguments[1];return void(0,n.iz)("visibilitychange",(function(){if(t){if("hidden"!=document.visibilityState)return;e()}e(document.visibilityState)}))}function o(){return"hidden"===document.visibilityState?-1:1/0}},6034:(e,t,r)=>{"use strict";r.d(t,{gF:()=>o,mY:()=>i,t9:()=>n,vz:()=>s,xS:()=>a});const n=r(2325).D.metrics,i="sm",o="cm",a="storeSupportabilityMetrics",s="storeEventMetrics"},2484:(e,t,r)=>{"use strict";r.d(t,{t:()=>n});const n=r(2325).D.pageViewEvent},6382:(e,t,r)=>{"use strict";r.d(t,{t:()=>n});const n=r(2325).D.pageViewTiming},1509:(e,t,r)=>{"use strict";r.d(t,{W:()=>s});var n=r(6562),i=r(3752),o=r(2384),a=r(6797);class s{constructor(e,t,r){this.agentIdentifier=e,this.aggregator=t,this.ee=i.ee.get(e,(0,n.OP)(this.agentIdentifier).isolatedBacklog),this.featureName=r,this.blocked=!1,this.checkConfiguration()}checkConfiguration(){if(!(0,n.lF)(this.agentIdentifier)){let e={...(0,a.gG)().info?.jsAttributes};try{e={...e,...(0,n.C5)(this.agentIdentifier)?.jsAttributes}}catch(e){}(0,o.j)(this.agentIdentifier,{...(0,a.gG)(),info:{...(0,a.gG)().info,jsAttributes:e}})}}}},2384:(e,t,r)=>{"use strict";r.d(t,{j:()=>w});var n=r(8683),i=r.n(n),o=r(2325),a=r(6562),s=r(9252),c=r(7022),u=r(3752),d=r(2053),f=r(4329),l=r(2650),g=r(2374),v=r(8610),h=r(6034);function p(e){["setErrorHandler","finished","addToTrace","inlineHit","addRelease","addPageAction","setCurrentRouteName","setPageViewName","setCustomAttribute","interaction","noticeError"].forEach((t=>{e[t]=function(){for(var r=arguments.length,n=new Array(r),i=0;i<r;i++)n[i]=arguments[i];return function(t){for(var r=arguments.length,n=new Array(r>1?r-1:0),i=1;i<r;i++)n[i-1]=arguments[i];Object.values(e.initializedAgents).forEach((e=>{e.exposed&&e.api[t]&&e.api[t](...n)}))}(t,...n)}}))}var m=r(6797);const b={stn:[o.D.sessionTrace],err:[o.D.jserrors,o.D.metrics],ins:[o.D.pageAction],spa:[o.D.spa]};const y={};function w(e){let t=arguments.length>1&&void 0!==arguments[1]?arguments[1]:{},n=arguments.length>2?arguments[2]:void 0,w=arguments.length>3?arguments[3]:void 0,{init:A,info:E,loader_config:x,runtime:T={loaderType:n},exposed:_=!0}=t;const D=(0,m.gG)();let j={};return E||(A=D.init,E=D.info,x=D.loader_config,j=D),g.v6&&(E.jsAttributes={...E.jsAttributes,isWorker:!0}),(0,a.CX)(e,E),(0,a.Dg)(e,A||{}),(0,a.GE)(e,x||{}),(0,a.sU)(e,T),function(e,t,n){n||(0,f.R)(e,"api"),p(t);var m=u.ee.get(e),b=m.get("tracer"),y="api-",w=y+"ixn-";function A(){}(0,c.D)(["setErrorHandler","finished","addToTrace","inlineHit","addRelease"],(function(e,r){t[r]=x(y,r,!0,"api")})),t.addPageAction=x(y,"addPageAction",!0,o.D.pageAction),t.setCurrentRouteName=x(y,"routeName",!0,o.D.spa),t.setPageViewName=function(t,r){if("string"==typeof t)return"/"!==t.charAt(0)&&(t="/"+t),(0,a.OP)(e).customTransaction=(r||"https://web.archive.org/web/20230330190938/http://custom.transaction")+t,x(y,"setPageViewName",!0,"api")()},t.setCustomAttribute=function(t,r){const n=(0,a.C5)(e);return(0,a.CX)(e,{...n,jsAttributes:{...n.jsAttributes,[t]:r}}),x(y,"setCustomAttribute",!0,"api")()},t.interaction=function(){return(new A).get()};var E=A.prototype={createTracer:function(e,t){var r={},n=this,i="function"==typeof t;return(0,s.p)(w+"tracer",[(0,d.z)(),e,r],n,o.D.spa,m),function(){if(b.emit((i?"":"no-")+"fn-start",[(0,d.z)(),n,i],r),i)try{return t.apply(this,arguments)}catch(e){throw b.emit("fn-err",[arguments,this,"string"==typeof e?new Error(e):e],r),e}finally{b.emit("fn-end",[(0,d.z)()],r)}}}};function x(e,t,r,n){return function(){return(0,s.p)(h.xS,["API/"+t+"/called"],void 0,o.D.metrics,m),(0,s.p)(e+t,[(0,d.z)()].concat(i()(arguments)),r?null:this,n,m),r?void 0:this}}function T(){r.e(439).then(r.bind(r,5692)).then((t=>{let{setAPI:r}=t;r(e),(0,f.L)(e,"api")})).catch((()=>(0,v.Z)("Downloading runtime APIs failed...")))}(0,c.D)("actionText,setName,setAttribute,save,ignore,onEnd,getContext,end,get".split(","),(function(e,t){E[t]=x(w,t,void 0,o.D.spa)})),t.noticeError=function(e,t){"string"==typeof e&&(e=new Error(e)),(0,s.p)(h.xS,["API/noticeError/called"],void 0,o.D.metrics,m),(0,s.p)("err",[e,(0,d.z)(),!1,t],void 0,o.D.jserrors,m)},g.v6?T():(0,l.b)((()=>T()),!0)}(e,j,w),(0,m.Qy)(e,D,"api"),(0,m.Qy)(e,_,"exposed"),(0,m.EZ)("activatedFeatures",y),(0,m.EZ)("setToken",(t=>function(e,t){var r=u.ee.get(t);e&&"object"==typeof e&&((0,c.D)(e,(function(e,t){if(!t)return(b[e]||[]).forEach((t=>{(0,s.p)("block-"+e,[],void 0,t,r)}));y[e]||((0,s.p)("feat-"+e,[],void 0,b[e],r),y[e]=!0)})),(0,f.L)(t,o.D.pageViewEvent))}(t,e))),j}},909:(e,t,r)=>{"use strict";r.d(t,{Z:()=>i,q:()=>o});var n=r(2325);function i(e){switch(e){case n.D.ajax:return[n.D.jserrors];case n.D.sessionTrace:return[n.D.ajax,n.D.pageViewEvent];case n.D.pageViewTiming:return[n.D.pageViewEvent];default:return[]}}function o(e){return e===n.D.jserrors?[]:["auto"]}},2325:(e,t,r)=>{"use strict";r.d(t,{D:()=>n,p:()=>i});const n={ajax:"ajax",jserrors:"jserrors",metrics:"metrics",pageAction:"page_action",pageViewEvent:"page_view_event",pageViewTiming:"page_view_timing",sessionTrace:"session_trace",spa:"spa"},i={[n.pageViewEvent]:1,[n.pageViewTiming]:2,[n.metrics]:3,[n.jserrors]:4,[n.ajax]:5,[n.sessionTrace]:6,[n.pageAction]:7,[n.spa]:8}},8683: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}}},n={};function i(e){var t=n[e];if(void 0!==t)return t.exports;var o=n[e]={exports:{}};return r[e](o,o.exports,i),o.exports}i.m=r,i.n=e=>{var t=e&&e.__esModule?()=>e.default:()=>e;return i.d(t,{a:t}),t},i.d=(e,t)=>{for(var r in t)i.o(t,r)&&!i.o(e,r)&&Object.defineProperty(e,r,{enumerable:!0,get:t[r]})},i.f={},i.e=e=>Promise.all(Object.keys(i.f).reduce(((t,r)=>(i.f[r](e,t),t)),[])),i.u=e=>(({78:"page_action-aggregate",147:"metrics-aggregate",193:"session_trace-aggregate",317:"jserrors-aggregate",348:"page_view_timing-aggregate",439:"async-api",729:"lazy-loader",786:"page_view_event-aggregate",873:"spa-aggregate",898:"ajax-aggregate"}[e]||e)+"."+{78:"1ef08094",147:"56d9a464",193:"ada8b15b",317:"64f61365",348:"ced8c919",439:"61caf4d9",729:"37550b27",786:"46b69e61",862:"e74e95d2",873:"7222cbb6",898:"e6085a9a"}[e]+"-1228.min.js"),i.o=(e,t)=>Object.prototype.hasOwnProperty.call(e,t),e={},t="NRBA:",i.l=(r,n,o,a)=>{if(e[r])e[r].push(n);else{var s,c;if(void 0!==o)for(var u=document.getElementsByTagName("script"),d=0;d<u.length;d++){var f=u[d];if(f.getAttribute("src")==r||f.getAttribute("data-webpack")==t+o){s=f;break}}s||(c=!0,(s=document.createElement("script")).charset="utf-8",s.timeout=120,i.nc&&s.setAttribute("nonce",i.nc),s.setAttribute("data-webpack",t+o),s.src=r),e[r]=[n];var l=(t,n)=>{s.onerror=s.onload=null,clearTimeout(g);var i=e[r];if(delete e[r],s.parentNode&&s.parentNode.removeChild(s),i&&i.forEach((e=>e(n))),t)return t(n)},g=setTimeout(l.bind(null,void 0,{type:"timeout",target:s}),12e4);s.onerror=l.bind(null,s.onerror),s.onload=l.bind(null,s.onload),c&&document.head.appendChild(s)}},i.r=e=>{"undefined"!=typeof Symbol&&Symbol.toStringTag&&Object.defineProperty(e,Symbol.toStringTag,{value:"Module"}),Object.defineProperty(e,"__esModule",{value:!0})},i.p="https://web.archive.org/web/20230330190938/https://js-agent.newrelic.com/",(()=>{var e={653:0,227:0};i.f.j=(t,r)=>{var n=i.o(e,t)?e[t]:void 0;if(0!==n)if(n)r.push(n[2]);else{var o=new Promise(((r,i)=>n=e[t]=[r,i]));r.push(n[2]=o);var a=i.p+i.u(t),s=new Error;i.l(a,(r=>{if(i.o(e,t)&&(0!==(n=e[t])&&(e[t]=void 0),n)){var o=r&&("load"===r.type?"missing":r.type),a=r&&r.target&&r.target.src;s.message="Loading chunk "+t+" failed.\n("+o+": "+a+")",s.name="ChunkLoadError",s.type=o,s.request=a,n[1](s)}}),"chunk-"+t,t)}};var t=(t,r)=>{var n,o,[a,s,c]=r,u=0;if(a.some((t=>0!==e[t]))){for(n in s)i.o(s,n)&&(i.m[n]=s[n]);if(c)c(i)}for(t&&t(r);u<a.length;u++)o=a[u],i.o(e,o)&&e[o]&&e[o][0](),e[o]=0},r=window.webpackChunkNRBA=window.webpackChunkNRBA||[];r.forEach(t.bind(null,0)),r.push=t.bind(null,r.push.bind(r))})();var o={};(()=>{"use strict";i.r(o);var e=i(2325),t=i(6562);const r=Object.values(e.D);function n(e){const n={};return r.forEach((r=>{n[r]=function(e,r){return!1!==(0,t.Mt)(r,"".concat(e,".enabled"))}(r,e)})),n}var a=i(2384),s=i(909),c=i(9252),u=i(2053),d=i(8283),f=i(4329),l=i(1509),g=i(2650),v=i(2374),h=i(8610);class p extends l.W{constructor(e,t,r){let n=!(arguments.length>3&&void 0!==arguments[3])||arguments[3];super(e,t,r),this.hasAggregator=!1,this.auto=n,this.abortHandler,n&&(0,f.R)(e,r)}importAggregator(){if(this.hasAggregator||!this.auto)return;this.hasAggregator=!0;const e=async()=>{try{const{lazyLoader:e}=await i.e(729).then(i.bind(i,8110)),{Aggregate:t}=await e(this.featureName,"aggregate");new t(this.agentIdentifier,this.aggregator)}catch(e){(0,h.Z)("Downloading ".concat(this.featureName," failed...")),this.abortHandler?.()}};v.v6?e():(0,g.b)((()=>e()),!0)}}var m,b,y,w=i(2484);class A extends p{constructor(e,r){let n=!(arguments.length>2&&void 0!==arguments[2])||arguments[2];super(e,r,w.t,n),(0,d.B)(e,"starttime",(0,t.OP)(e).offset),(0,d.B)(e,"firstbyte",u.B),(0,g.K)((()=>this.measureDomContentLoaded())),(0,g.b)((()=>this.measureWindowLoaded()),!0),this.importAggregator()}measureWindowLoaded(){var r=(0,u.z)();(0,d.B)(this.agentIdentifier,"onload",r+(0,t.OP)(this.agentIdentifier).offset),(0,c.p)("timing",["load",r],void 0,e.D.pageViewTiming,this.ee)}measureDomContentLoaded(){(0,d.B)(this.agentIdentifier,"domContent",(0,u.z)()+(0,t.OP)(this.agentIdentifier).offset)}}m=A,b="featureName",y=w.t,(b=function(e){var t=function(e,t){if("object"!=typeof e||null===e)return e;var r=e[Symbol.toPrimitive];if(void 0!==r){var n=r.call(e,t||"default");if("object"!=typeof n)return n;throw new TypeError("@@toPrimitive must return a primitive value.")}return("string"===t?String:Number)(e)}(e,"string");return"symbol"==typeof t?t:String(t)}(b))in m?Object.defineProperty(m,b,{value:y,enumerable:!0,configurable:!0,writable:!0}):m[b]=y;var E=i(9557),x=i(7022);class T extends E.w{constructor(e){super(e),this.aggregatedData={}}store(e,t,r,n,i){var o=this.getBucket(e,t,r,i);return o.metrics=function(e,t){t||(t={count:0});return t.count+=1,(0,x.D)(e,(function(e,r){t[e]=_(r,t[e])})),t}(n,o.metrics),o}merge(e,t,r,n,i){var o=this.getBucket(e,t,n,i);if(o.metrics){var a=o.metrics;a.count+=r.count,(0,x.D)(r,(function(e,t){if("count"!==e){var n=a[e],i=r[e];i&&!i.c?a[e]=_(i.t,n):a[e]=function(e,t){if(!t)return e;t.c||(t=D(t.t));return t.min=Math.min(e.min,t.min),t.max=Math.max(e.max,t.max),t.t+=e.t,t.sos+=e.sos,t.c+=e.c,t}(i,a[e])}}))}else o.metrics=r}storeMetric(e,t,r,n){var i=this.getBucket(e,t,r);return i.stats=_(n,i.stats),i}getBucket(e,t,r,n){this.aggregatedData[e]||(this.aggregatedData[e]={});var i=this.aggregatedData[e][t];return i||(i=this.aggregatedData[e][t]={params:r||{}},n&&(i.custom=n)),i}get(e,t){return t?this.aggregatedData[e]&&this.aggregatedData[e][t]:this.aggregatedData[e]}take(e){for(var t={},r="",n=!1,i=0;i<e.length;i++)t[r=e[i]]=j(this.aggregatedData[r]),t[r].length&&(n=!0),delete this.aggregatedData[r];return n?t:null}}function _(e,t){return null==e?function(e){e?e.c++:e={c:1};return e}(t):t?(t.c||(t=D(t.t)),t.c+=1,t.t+=e,t.sos+=e*e,e>t.max&&(t.max=e),e<t.min&&(t.min=e),t):{t:e}}function D(e){return{t:e,min:e,max:e,sos:e*e,c:1}}function j(e){return"object"!=typeof e?[]:(0,x.D)(e,P)}function P(e,t){return t}var k=i(6797),O=i(5526),S=i(2438);var I,C=i(6998),N=i(8544),R=i(6382),M=-1,B=function(e){addEventListener("pageshow",(function(t){t.persisted&&(M=t.timeStamp,e(t))}),!0)},L=function(){return window.performance&&performance.getEntriesByType&&performance.getEntriesByType("navigation")[0]},z=function(){var e=L();return e&&e.activationStart||0},V=function(e,t){var r=L(),n="navigate";return M>=0?n="back-forward-cache":r&&(n=document.prerendering||z()>0?"prerender":document.wasDiscarded?"restore":r.type.replace(/_/g,"-")),{name:e,value:void 0===t?-1:t,rating:"good",delta:0,entries:[],id:"v3-".concat(Date.now(),"-").concat(Math.floor(8999999999999*Math.random())+1e12),navigationType:n}},W=function(e,t,r){try{if(PerformanceObserver.supportedEntryTypes.includes(e)){var n=new PerformanceObserver((function(e){Promise.resolve().then((function(){t(e.getEntries())}))}));return n.observe(Object.assign({type:e,buffered:!0},r||{})),n}}catch(e){}},q=function(e,t,r,n){var i,o;return function(a){t.value>=0&&(a||n)&&((o=t.value-(i||0))||void 0===i)&&(i=t.value,t.delta=o,t.rating=function(e,t){return e>t[1]?"poor":e>t[0]?"needs-improvement":"good"}(t.value,r),e(t))}},Z=function(e){var t=function(t){"pagehide"!==t.type&&"hidden"!==document.visibilityState||e(t)};addEventListener("visibilitychange",t,!0),addEventListener("pagehide",t,!0)},H=function(e){document.prerendering?addEventListener("prerenderingchange",(function(){return e()}),!0):e()},F=(new Date,0),U=1/0,G=0,X=function(e){e.forEach((function(e){e.interactionId&&(U=Math.min(U,e.interactionId),G=Math.max(G,e.interactionId),F=G?(G-U)/7+1:0)}))},Q=function(){return I?F:performance.interactionCount||0},K=function(){"interactionCount"in performance||I||(I=W("event",X,{type:"event",buffered:!0,durationThreshold:0}))},Y=[200,500],J=0,$=function(){return Q()-J},ee=[],te={},re=function(e){var t=ee[ee.length-1],r=te[e.interactionId];if(r||ee.length<10||e.duration>t.latency){if(r)r.entries.push(e),r.latency=Math.max(r.latency,e.duration);else{var n={id:e.interactionId,latency:e.duration,entries:[e]};te[n.id]=n,ee.push(n)}ee.sort((function(e,t){return t.latency-e.latency})),ee.splice(10).forEach((function(e){delete te[e.id]}))}},ne=i(2545);class ie extends p{constructor(r,n){var i;let o=!(arguments.length>2&&void 0!==arguments[2])||arguments[2];if(super(r,n,R.t,o),i=this,v.il){if(this.pageHiddenTime=(0,C.e)(),this.performanceObserver,this.lcpPerformanceObserver,this.clsPerformanceObserver,this.fiRecorded=!1,"PerformanceObserver"in window&&"function"==typeof window.PerformanceObserver){this.performanceObserver=new PerformanceObserver((function(){return i.perfObserver(...arguments)}));try{this.performanceObserver.observe({entryTypes:["paint"]})}catch(e){}this.lcpPerformanceObserver=new PerformanceObserver((function(){return i.lcpObserver(...arguments)}));try{this.lcpPerformanceObserver.observe({entryTypes:["largest-contentful-paint"]})}catch(e){}this.clsPerformanceObserver=new PerformanceObserver((function(){return i.clsObserver(...arguments)}));try{this.clsPerformanceObserver.observe({type:"layout-shift",buffered:!0})}catch(e){}}this.fiRecorded=!1;["click","keydown","mousedown","pointerdown","touchstart"].forEach((e=>{(0,N.iz)(e,(function(){return i.captureInteraction(...arguments)}))})),function(e,t){t=t||{},H((function(){K();var r,n=V("INP"),i=function(e){e.forEach((function(e){e.interactionId&&re(e),"first-input"===e.entryType&&!ee.some((function(t){return t.entries.some((function(t){return e.duration===t.duration&&e.startTime===t.startTime}))}))&&re(e)}));var t,i=(t=Math.min(ee.length-1,Math.floor($()/50)),ee[t]);i&&i.latency!==n.value&&(n.value=i.latency,n.entries=i.entries,r())},o=W("event",i,{durationThreshold:t.durationThreshold||40});r=q(e,n,Y,t.reportAllChanges),o&&(o.observe({type:"first-input",buffered:!0}),Z((function(){i(o.takeRecords()),n.value<0&&$()>0&&(n.value=0,n.entries=[]),r(!0)})),B((function(){ee=[],J=Q(),n=V("INP"),r=q(e,n,Y,t.reportAllChanges)})))}))}((t=>{let{name:r,value:n,id:i}=t;(0,c.p)("timing",[r.toLowerCase(),n,{metricId:i}],void 0,e.D.pageViewTiming,this.ee)})),!0===(0,t.Mt)(this.agentIdentifier,"page_view_timing.long_task")&&(e=>{const t=t=>{t.forEach((t=>{const r={name:"LT",value:t.duration,info:{ltFrame:t.name,ltStart:t.startTime,ltCtr:t.attribution[0].containerType}};"window"!==r.info.ltCtr&&Object.assign(r.info,{ltCtrSrc:t.attribution[0].containerSrc,ltCtrId:t.attribution[0].containerId,ltCtrName:t.attribution[0].containerName}),e(r)}))};let r;try{PerformanceObserver.supportedEntryTypes.includes("longtask")&&(r=new PerformanceObserver((e=>{Promise.resolve().then((()=>{t(e.getEntries())}))})),r.observe({type:"longtask",buffered:!0}))}catch(e){}r&&(0,ne.L)((()=>{t(r.takeRecords())}),!0)})((t=>{let{name:r,value:n,info:i}=t;(0,c.p)("timing",[r.toLowerCase(),n,i],void 0,e.D.pageViewTiming,this.ee)})),(0,C.N)((()=>{this.pageHiddenTime=(0,u.z)(),(0,c.p)("docHidden",[this.pageHiddenTime],void 0,e.D.pageViewTiming,this.ee)}),!0),(0,N.bP)("pagehide",(()=>(0,c.p)("winPagehide",[(0,u.z)()],void 0,e.D.pageViewTiming,this.ee))),this.importAggregator()}}perfObserver(t,r){t.getEntries().forEach((t=>{"first-paint"===t.name?(0,c.p)("timing",["fp",Math.floor(t.startTime)],void 0,e.D.pageViewTiming,this.ee):"first-contentful-paint"===t.name&&(0,c.p)("timing",["fcp",Math.floor(t.startTime)],void 0,e.D.pageViewTiming,this.ee)}))}lcpObserver(t,r){var n=t.getEntries();if(n.length>0){var i=n[n.length-1];if(this.pageHiddenTime<i.startTime)return;var o=[i],a=this.addConnectionAttributes({});a&&o.push(a),(0,c.p)("lcp",o,void 0,e.D.pageViewTiming,this.ee)}}clsObserver(t){t.getEntries().forEach((t=>{t.hadRecentInput||(0,c.p)("cls",[t],void 0,e.D.pageViewTiming,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(r){if(r instanceof t.Yu.EV&&!this.fiRecorded){var n=Math.round(r.timeStamp),i={type:r.type};this.addConnectionAttributes(i);const o=(0,t.OP)(this.agentIdentifier).offset;n<=(0,u.z)()?i.fid=(0,u.z)()-n:n>o&&n<=Date.now()?(n-=o,i.fid=(0,u.z)()-n):n=(0,u.z)(),this.fiRecorded=!0,(0,c.p)("timing",["fi",n,i],void 0,e.D.pageViewTiming,this.ee)}}}!function(e,t,r){(t=function(e){var t=function(e,t){if("object"!=typeof e||null===e)return e;var r=e[Symbol.toPrimitive];if(void 0!==r){var n=r.call(e,t||"default");if("object"!=typeof n)return n;throw new TypeError("@@toPrimitive must return a primitive value.")}return("string"===t?String:Number)(e)}(e,"string");return"symbol"==typeof t?t:String(t)}(t))in e?Object.defineProperty(e,t,{value:r,enumerable:!0,configurable:!0,writable:!0}):e[t]=r}(ie,"featureName",R.t);const oe={dedicated:Boolean(v._A?.Worker),shared:Boolean(v._A?.SharedWorker),service:Boolean(v._A?.navigator?.serviceWorker)};let ae,se,ce;var ue=i(6034);class de extends p{constructor(t,r){let n=!(arguments.length>2&&void 0!==arguments[2])||arguments[2];super(t,r,ue.t9,n),function(e){if(!ae){if(oe.dedicated){ae=Worker;try{v._A.Worker=r(ae,"Dedicated")}catch(e){o(e,"Dedicated")}if(oe.shared){se=SharedWorker;try{v._A.SharedWorker=r(se,"Shared")}catch(e){o(e,"Shared")}}else n("Shared");if(oe.service){ce=navigator.serviceWorker.register;try{v._A.navigator.serviceWorker.register=(t=ce,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"undefined"==typeof Proxy?e:new Proxy(e,{construct:(e,r)=>(i(t,r[1]?.type),new e(...r))})}function n(t){v.v6||e("Workers/".concat(t,"/Unavailable"))}function i(t,r){e("Workers/".concat(t,"module"===r?"/Module":"/Classic"))}function o(t,r){e("Workers/".concat(r,"/SM/Unsupported")),(0,h.Z)("NR Agent: Unable to capture ".concat(r," workers."),t)}}((t=>(0,c.p)(ue.xS,[t],void 0,e.D.metrics,this.ee))),this.importAggregator()}}!function(e,t,r){(t=function(e){var t=function(e,t){if("object"!=typeof e||null===e)return e;var r=e[Symbol.toPrimitive];if(void 0!==r){var n=r.call(e,t||"default");if("object"!=typeof n)return n;throw new TypeError("@@toPrimitive must return a primitive value.")}return("string"===t?String:Number)(e)}(e,"string");return"symbol"==typeof t?t:String(t)}(t))in e?Object.defineProperty(e,t,{value:r,enumerable:!0,configurable:!0,writable:!0}):e[t]=r}(de,"featureName",ue.t9),new class{constructor(e){let t=arguments.length>1&&void 0!==arguments[1]?arguments[1]:(0,O.ky)(16);this.agentIdentifier=t,this.sharedAggregator=new T({agentIdentifier:this.agentIdentifier}),this.features={},this.desiredFeatures=new Set(e.features||[]),this.desiredFeatures.add(A),Object.assign(this,(0,a.j)(this.agentIdentifier,e,e.loaderType||"agent")),this.start()}get config(){return{info:(0,t.C5)(this.agentIdentifier),init:(0,t.P_)(this.agentIdentifier),loader_config:(0,t.DL)(this.agentIdentifier),runtime:(0,t.OP)(this.agentIdentifier)}}start(){const t="features";try{const r=n(this.agentIdentifier),i=Array.from(this.desiredFeatures);i.sort(((t,r)=>e.p[t.featureName]-e.p[r.featureName])),i.forEach((t=>{if(r[t.featureName]||t.featureName===e.D.pageViewEvent){const e=(0,s.Z)(t.featureName),n=e.every((e=>r[e]));n||(0,h.Z)("".concat(t.featureName," is enabled but one or more dependent features has been disabled (").concat((0,S.P)(e),"). This may cause unintended consequences or missing data...")),this.features[t.featureName]=new t(this.agentIdentifier,this.sharedAggregator)}})),(0,k.Qy)(this.agentIdentifier,this.features,t)}catch(e){(0,h.Z)("Failed to initialize all enabled instrument classes (agent aborted) -",e);for(const e in this.features)this.features[e].abortHandler?.();const r=(0,k.fP)();return delete r.initializedAgents[this.agentIdentifier]?.api,delete r.initializedAgents[this.agentIdentifier]?.[t],delete this.sharedAggregator,r.ee?.abort(),delete r.ee?.get(this.agentIdentifier),!1}}}({features:[A,ie,de],loaderType:"lite"})})(),window.NRBA=o})();</script> <noscript><style>form.antibot * :not(.antibot-message) { display: none !important; }</style> </noscript><script async src="https://web.archive.org/web/20230330190938js_/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('set', {cookie_flags: 'SameSite=None;Secure'});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":"Laboratories ","node_id":"388016","content_type":"Basic page"});</script> <link rel="canonical" href="https://web.archive.org/web/20230330190938/https://www.nist.gov/labs-major-programs/laboratories"/> <link rel="shortlink" href="https://web.archive.org/web/20230330190938/https://www.nist.gov/node/388016"/> <meta name="description" content="NIST runs a number of laboratories to assist in its mission to promote innovation and industrial competitiveness by advancing technology"/> <meta name="dcterms.title" content="Laboratories"/> <meta name="dcterms.description" content="NIST runs a number of laboratories to assist in its mission to promote innovation and industrial competitiveness by advancing technology"/> <meta name="dcterms.date" content="2015-07-07T12:29-04:00"/> <meta name="dcterms.type" content="text"/> <meta name="dcterms.format" content="text/html"/> <meta name="dcterms.identifier" content="https://www.nist.gov/labs-major-programs/laboratories"/> <meta name="dcterms.source" content="NIST"/> <meta name="dcterms.created" content="2015-07-07T12:29-04:00"/> <meta name="dcterms.modified" content="2022-01-18T08:19-05:00"/> <meta name="citation_title" content="Laboratories | NIST"/> <meta property="og:site_name" content="NIST"/> <meta property="og:type" content="Article"/> <meta property="og:url" content="https://web.archive.org/web/20230330190938/https://www.nist.gov/labs-major-programs/laboratories"/> <meta property="og:title" content="Laboratories"/> <meta property="og:description" content="NIST runs a number of laboratories to assist in its mission to promote innovation and industrial competitiveness by advancing technology"/> <meta property="article:published_time" content="2015-07-07T12:29-04:00"/> <meta property="article:modified_time" content="2022-01-18T08:19-05:00"/> <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="NIST runs a number of laboratories to assist in its mission to promote innovation and industrial competitiveness by advancing technology"/> <meta name="twitter:title" content="Laboratories"/> <meta name="twitter:url" content="https://web.archive.org/web/20230330190938im_/https://www.nist.gov/labs-major-programs/laboratories"/> <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="2022-01-18T08:19:00-05:00"/> <script type="application/ld+json">{ "@context": "https://web.archive.org/web/20230330190938/https://schema.org", "@graph": [ { "@type": "Article", "headline": "Laboratories | NIST", "description": "NIST runs a number of laboratories to assist in its mission to promote innovation and industrial competitiveness by advancing technology", "image": { "@type": "ImageObject", "representativeOfPage": "True" }, "datePublished": "2015-07-07T12:29-04:00", "dateModified": "2022-01-18T08:19-05:00" } ] }</script> <meta name="nist_search_bundle" class="elastic" content="page"/> <link rel="icon" href="/web/20230330190938im_/https://www.nist.gov/themes/custom/nist_www/favicon.ico" type="image/vnd.microsoft.icon"/> <title>Laboratories | NIST</title> <link rel="stylesheet" media="all" href="/web/20230330190938cs_/https://www.nist.gov/sites/default/files/css/css_6IARttm8vyVGJNHC35WOrBrHZqtrgyElXXf3aKPkCpU.css"/> <link rel="stylesheet" media="screen" href="/web/20230330190938cs_/https://www.nist.gov/sites/default/files/css/css_gD8QmGaNfUQuThtjB-S0EwEOZZNJP1QfUU1bDdLHbMU.css"/> <link rel="stylesheet" media="print" href="/web/20230330190938cs_/https://www.nist.gov/sites/default/files/css/css_zbjDhj-AmeVwgu9y0DlPwEfp7l-a5BpoK3MpoGmRB6o.css"/> <link rel="stylesheet" media="all" href="/web/20230330190938cs_/https://www.nist.gov/sites/default/files/css/css_PV0KmreUx3hVeYI6yGypf71UDz9BSQl1Z5DjiESDh-Y.css"/> <link rel="stylesheet" media="screen" href="/web/20230330190938cs_/https://www.nist.gov/sites/default/files/css/css_dXhP8gFSR5hd16LUS1TrwJ15l9WTOxqff1l1a5ojF4o.css"/> <script src="/web/20230330190938js_/https://www.nist.gov/sites/default/files/js/js_VDwaIMNiRtzQn-NZvj1F9loIzJ-i4yEDiruzS8Z6Ejo.js"></script> </head> <body class="node-388016"> <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> <!-- nist-index-ignore-start --> <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/20230330190938im_/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/20230330190938im_/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/20230330190938im_/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> <!-- nist-index-ignore-end --> <div data-elastic-exclude> <!-- nist-index-ignore-start --> <div class="nist-print-header" style="display:none;"> <p class="nist-print-header__url">https://www.nist.gov/labs-major-programs/laboratories</p> <img class="nist-print-header__logo" width="289" height="38" src="/web/20230330190938im_/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/20230330190938/https://www.nist.gov/" title="National Institute of Standards and Technology" aria-label="Home"> <img src="/web/20230330190938im_/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/20230330190938/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/20230330190938im_/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/20230330190938/https://www.nist.gov/topics" class="usa-nav__link">All Topics</a> </li> <li class="usa-nav__submenu-item"> <a href="/web/20230330190938/https://www.nist.gov/advanced-communications" class="usa-nav__link">Advanced communications</a> </li> <li class="usa-nav__submenu-item"> <a href="/web/20230330190938/https://www.nist.gov/artificial-intelligence" class="usa-nav__link">Artificial intelligence</a> </li> <li class="usa-nav__submenu-item"> <a href="/web/20230330190938/https://www.nist.gov/bioscience" class="usa-nav__link">Bioscience</a> </li> <li class="usa-nav__submenu-item"> <a href="/web/20230330190938/https://www.nist.gov/buildings-construction" class="usa-nav__link">Buildings and construction</a> </li> <li class="usa-nav__submenu-item"> <a href="/web/20230330190938/https://www.nist.gov/chemistry" class="usa-nav__link">Chemistry</a> </li> <li class="usa-nav__submenu-item"> <a href="/web/20230330190938/https://www.nist.gov/climate" class="usa-nav__link">Climate</a> </li> <li class="usa-nav__submenu-item"> <a href="/web/20230330190938/https://www.nist.gov/cybersecurity" class="usa-nav__link">Cybersecurity</a> </li> <li class="usa-nav__submenu-item"> <a href="/web/20230330190938/https://www.nist.gov/electronics" class="usa-nav__link">Electronics</a> </li> <li class="usa-nav__submenu-item"> <a href="/web/20230330190938/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/20230330190938/https://www.nist.gov/environment" class="usa-nav__link">Environment</a> </li> <li class="usa-nav__submenu-item"> <a href="/web/20230330190938/https://www.nist.gov/fire" class="usa-nav__link">Fire</a> </li> <li class="usa-nav__submenu-item"> <a href="/web/20230330190938/https://www.nist.gov/forensic-science" class="usa-nav__link">Forensic science</a> </li> <li class="usa-nav__submenu-item"> <a href="/web/20230330190938/https://www.nist.gov/health" class="usa-nav__link">Health</a> </li> <li class="usa-nav__submenu-item"> <a href="/web/20230330190938/https://www.nist.gov/information-technology" class="usa-nav__link">Information technology</a> </li> <li class="usa-nav__submenu-item"> <a href="/web/20230330190938/https://www.nist.gov/infrastructure" class="usa-nav__link">Infrastructure</a> </li> <li class="usa-nav__submenu-item"> <a href="/web/20230330190938/https://www.nist.gov/manufacturing" class="usa-nav__link">Manufacturing</a> </li> <li class="usa-nav__submenu-item"> <a href="/web/20230330190938/https://www.nist.gov/materials" class="usa-nav__link">Materials</a> </li> <li class="usa-nav__submenu-item"> <a href="/web/20230330190938/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/20230330190938/https://www.nist.gov/metrology" class="usa-nav__link">Metrology</a> </li> <li class="usa-nav__submenu-item"> <a href="/web/20230330190938/https://www.nist.gov/nanotechnology" class="usa-nav__link">Nanotechnology</a> </li> <li class="usa-nav__submenu-item"> <a href="/web/20230330190938/https://www.nist.gov/neutron-research" class="usa-nav__link">Neutron research</a> </li> <li class="usa-nav__submenu-item"> <a href="/web/20230330190938/https://www.nist.gov/performance-excellence" class="usa-nav__link">Performance excellence</a> </li> <li class="usa-nav__submenu-item"> <a href="/web/20230330190938/https://www.nist.gov/physics" class="usa-nav__link">Physics</a> </li> <li class="usa-nav__submenu-item"> <a href="/web/20230330190938/https://www.nist.gov/public-safety" class="usa-nav__link">Public safety</a> </li> <li class="usa-nav__submenu-item"> <a href="/web/20230330190938/https://www.nist.gov/resilience" class="usa-nav__link">Resilience</a> </li> <li class="usa-nav__submenu-item"> <a href="/web/20230330190938/https://www.nist.gov/standards" class="usa-nav__link">Standards</a> </li> <li class="usa-nav__submenu-item"> <a href="/web/20230330190938/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/20230330190938/https://www.nist.gov/publications">Publications</a> </li> <li class="usa-nav__primary-item"> <button class="usa-accordion__button usa-nav__link usa-current" aria-expanded="false" aria-controls="primary_menu-3"><span>Labs &amp; 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/20230330190938/https://www.nist.gov/labs-major-programs/laboratories" class="usa-nav__link usa-current">Laboratories</a> <ul class="usa-nav__submenu-list"> <li> <a href="/web/20230330190938/https://www.nist.gov/ctl" class="usa-nav__link">Communications Technology Laboratory</a> </li> <li> <a href="/web/20230330190938/https://www.nist.gov/el" class="usa-nav__link">Engineering Laboratory</a> </li> <li> <a href="/web/20230330190938/https://www.nist.gov/itl" class="usa-nav__link">Information Technology Laboratory</a> </li> <li> <a href="/web/20230330190938/https://www.nist.gov/mml" class="usa-nav__link">Material Measurement Laboratory</a> </li> <li> <a href="/web/20230330190938/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/20230330190938/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/20230330190938/https://www.nist.gov/ncnr" class="usa-nav__link">NIST Center for Neutron Research</a> </li> <li> <a href="/web/20230330190938/https://www.nist.gov/cnst" class="usa-nav__link">CNST NanoFab</a> </li> </ul> </li> <li class="usa-nav__submenu-item"> <a href="/web/20230330190938/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/20230330190938/https://www.nist.gov/laboratories/projects-programs" class="usa-nav__link">Research Projects</a> </li> <li class="usa-nav__submenu-item"> <a href="/web/20230330190938/https://www.nist.gov/laboratories/tools-instruments" class="usa-nav__link">Tools &amp; 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/20230330190938/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/20230330190938/https://www.nist.gov/baldrige" class="usa-nav__link">Baldrige Performance Excellence Program</a> </li> <li> <a href="/web/20230330190938/https://www.nist.gov/chips" class="usa-nav__link">CHIPS for America Initiative</a> </li> <li> <a href="/web/20230330190938/https://www.nist.gov/mep" class="usa-nav__link">Manufacturing Extension Partnership (MEP)</a> </li> <li> <a href="/web/20230330190938/https://www.nist.gov/oam" class="usa-nav__link">Office of Advanced Manufacturing</a> </li> <li> <a href="/web/20230330190938/https://www.nist.gov/spo" class="usa-nav__link">Special Programs Office</a> </li> <li> <a href="/web/20230330190938/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" aria-expanded="false" aria-controls="primary_menu-4"><span>Services &amp; 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/20230330190938/https://www.nist.gov/services-resources/standards-and-measurements" class="usa-nav__link">Standards and Measurements</a> <ul class="usa-nav__submenu-list"> <li> <a href="/web/20230330190938/https://www.nist.gov/calibrations" class="usa-nav__link">Calibration Services</a> </li> <li> <a href="/web/20230330190938/https://www.nist.gov/nvlap" class="usa-nav__link">Laboratory Accreditation (NVLAP)</a> </li> <li> <a href="/web/20230330190938/https://www.nist.gov/nist-quality-system" class="usa-nav__link">Quality System</a> </li> <li> <a href="/web/20230330190938/https://www.nist.gov/srm" class="usa-nav__link">Standard Reference Materials (SRMs)</a> </li> <li> <a href="/web/20230330190938/https://www.nist.gov/standardsgov" class="usa-nav__link">Standards.gov</a> </li> <li> <a href="/web/20230330190938/https://www.nist.gov/pml/time-and-frequency-division/time-services" class="usa-nav__link">Time Services</a> </li> <li> <a href="/web/20230330190938/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/20230330190938/https://www.nist.gov/services-resources/software" class="usa-nav__link">Software</a> </li> <li class="usa-nav__submenu-item"> <a href="/web/20230330190938/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/20230330190938/https://webbook.nist.gov/chemistry/" class="usa-nav__link">Chemistry WebBook</a> </li> <li> <a href="https://web.archive.org/web/20230330190938/https://nvd.nist.gov/" class="usa-nav__link">National Vulnerability Database</a> </li> <li> <a href="/web/20230330190938/https://www.nist.gov/pml/productsservices/physical-reference-data" class="usa-nav__link">Physical Reference Data</a> </li> <li> <a href="/web/20230330190938/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/20230330190938/https://www.nist.gov/shop" class="usa-nav__link">Storefront</a> </li> <li class="usa-nav__submenu-item"> <a href="/web/20230330190938/https://www.nist.gov/tpo" class="usa-nav__link">License &amp; 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/20230330190938/https://csrc.nist.gov/" class="usa-nav__link">Computer Security Resource Center (CSRC)</a> </li> <li class="usa-nav__submenu-item"> <a href="/web/20230330190938/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 &amp; 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/20230330190938/https://www.nist.gov/news-events/news" class="usa-nav__link">News</a> </li> <li class="usa-nav__submenu-item"> <a href="/web/20230330190938/https://www.nist.gov/news-events/events" class="usa-nav__link">Events</a> </li> <li class="usa-nav__submenu-item"> <a href="/web/20230330190938/https://www.nist.gov/blogs" class="usa-nav__link">Blogs</a> </li> <li class="usa-nav__submenu-item"> <a href="/web/20230330190938/https://www.nist.gov/feature-stories" class="usa-nav__link">Feature Stories</a> </li> <li class="usa-nav__submenu-item"> <a href="/web/20230330190938/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/20230330190938/https://www.nist.gov/video-gallery" class="usa-nav__link">Video Gallery</a> </li> <li class="usa-nav__submenu-item"> <a href="/web/20230330190938/https://www.nist.gov/image-gallery" class="usa-nav__link">Image Gallery</a> </li> <li class="usa-nav__submenu-item"> <a href="/web/20230330190938/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/20230330190938/https://www.nist.gov/about-nist" class="usa-nav__link">About Us</a> </li> <li class="usa-nav__submenu-item"> <a href="/web/20230330190938/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/20230330190938/https://www.nist.gov/about-nist/visit" class="usa-nav__link">Visit</a> </li> <li class="usa-nav__submenu-item"> <a href="/web/20230330190938/https://www.nist.gov/careers" class="usa-nav__link">Careers</a> </li> <li class="usa-nav__submenu-item"> <a href="/web/20230330190938/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/20230330190938/https://www.nist.gov/director" class="usa-nav__link">Office of the Director</a> </li> <li> <a href="/web/20230330190938/https://www.nist.gov/director/nist-organization-structure/budget-planning" class="usa-nav__link">Budget &amp; 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/20230330190938/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/20230330190938/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/20230330190938/http://nistdigitalarchives.contentdm.oclc.org/" class="usa-nav__link">NIST Digital Archives</a> </li> <li> <a href="/web/20230330190938/https://www.nist.gov/nist-museum" class="usa-nav__link">NIST Museum</a> </li> <li> <a href="/web/20230330190938/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/20230330190938/https://www.nist.gov/education" class="usa-nav__link">Educational Resources</a> </li> </ul> </div> </div> </div> </li> </ul> </div> </nav> </header> <!-- nist-index-ignore-end --> </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="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 class="nist-block nist-block--main-menu"> <nav> <ul class="usa-sidenav usa-accordion "> <li class="usa-sidenav__item usa-sidenav__item--parent"> <a href="/web/20230330190938/https://www.nist.gov/labs-major-programs/laboratories" class="usa-current" data-drupal-link-system-path="">Laboratories</a> <button class="usa-accordion__button" aria-expanded="true" aria-controls="main-1"><span class="usa-sr-only">Expand or Collapse</span></button> <ul id="main-1" class="usa-sidenav__sublist usa-accordion"> <li class="usa-sidenav__item"> <a href="/web/20230330190938/https://www.nist.gov/ctl" data-drupal-link-system-path="">Communications Technology Laboratory</a> </li> <li class="usa-sidenav__item"> <a href="/web/20230330190938/https://www.nist.gov/el" data-drupal-link-system-path="">Engineering Laboratory</a> </li> <li class="usa-sidenav__item"> <a href="/web/20230330190938/https://www.nist.gov/itl" data-drupal-link-system-path="">Information Technology Laboratory</a> </li> <li class="usa-sidenav__item"> <a href="/web/20230330190938/https://www.nist.gov/mml" data-drupal-link-system-path="">Material Measurement Laboratory</a> </li> <li class="usa-sidenav__item"> <a href="/web/20230330190938/https://www.nist.gov/pml" data-drupal-link-system-path="">Physical Measurement Laboratory</a> </li> </ul> </li> <li class="usa-sidenav__item usa-sidenav__item--parent"> <a href="/web/20230330190938/https://www.nist.gov/labs-major-programs/user-facilities" data-drupal-link-system-path="">User Facilities</a> <button class="usa-accordion__button" aria-expanded="false" aria-controls="main-2"><span class="usa-sr-only">Expand or Collapse</span></button> <ul id="main-2" class="usa-sidenav__sublist usa-accordion"> <li class="usa-sidenav__item"> <a href="/web/20230330190938/https://www.nist.gov/ncnr" data-drupal-link-system-path="">NIST Center for Neutron Research</a> </li> <li class="usa-sidenav__item"> <a href="/web/20230330190938/https://www.nist.gov/cnst" data-drupal-link-system-path="">CNST NanoFab</a> </li> </ul> </li> <li class="usa-sidenav__item"> <a href="/web/20230330190938/https://www.nist.gov/labs-major-programs/research-test-beds" data-drupal-link-system-path="">Research Test Beds</a> </li> <li class="usa-sidenav__item"> <a href="/web/20230330190938/https://www.nist.gov/laboratories/projects-programs" data-drupal-link-system-path="">Research Projects</a> </li> <li class="usa-sidenav__item"> <a href="/web/20230330190938/https://www.nist.gov/laboratories/tools-instruments" data-drupal-link-system-path="">Tools &amp; Instruments</a> </li> <li class="usa-sidenav__item usa-sidenav__item--parent"> <a href="/web/20230330190938/https://www.nist.gov/labs-major-programs/major-programs" data-drupal-link-system-path="">Major Programs</a> <button class="usa-accordion__button" aria-expanded="false" aria-controls="main-6"><span class="usa-sr-only">Expand or Collapse</span></button> <ul id="main-6" class="usa-sidenav__sublist usa-accordion"> <li class="usa-sidenav__item"> <a href="/web/20230330190938/https://www.nist.gov/baldrige" data-drupal-link-system-path="">Baldrige Performance Excellence Program</a> </li> <li class="usa-sidenav__item"> <a href="/web/20230330190938/https://www.nist.gov/chips" data-drupal-link-system-path="">CHIPS for America Initiative</a> </li> <li class="usa-sidenav__item"> <a href="/web/20230330190938/https://www.nist.gov/mep" data-drupal-link-system-path="">Manufacturing Extension Partnership (MEP)</a> </li> <li class="usa-sidenav__item"> <a href="/web/20230330190938/https://www.nist.gov/oam" data-drupal-link-system-path="">Office of Advanced Manufacturing</a> </li> <li class="usa-sidenav__item"> <a href="/web/20230330190938/https://www.nist.gov/spo" data-drupal-link-system-path="">Special Programs Office</a> </li> <li class="usa-sidenav__item"> <a href="/web/20230330190938/https://www.nist.gov/tpo" data-drupal-link-system-path="">Technology Partnerships Office</a> </li> </ul> </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"> <h1 class="nist-page__title">Laboratories</h1> </div> <div class="nist-block"> <!-- nist-index-ignore-start --> <div data-elastic-exclude class="nist-block nist-social__wrapper"> <h2 class="nist-social__title">Share</h2> <div class="social-media-sharing"> <div class="nist-social__wrapper--share"> <div> <a target="_blank" rel="noopener" href="https://web.archive.org/web/20230330190938/https://www.facebook.com/share.php?u=https://www.nist.gov/labs-major-programs/laboratories" title="Facebook" class="nist-social nist-social--facebook-gray"> <span>Facebook</span> </a> </div> <div> <a target="_blank" rel="noopener" href="https://web.archive.org/web/20230330190938/https://www.linkedin.com/shareArticle?mini=true&amp;url=https://www.nist.gov/labs-major-programs/laboratories&amp;source=https://www.nist.gov/labs-major-programs/laboratories" title="Linkedin" class="nist-social nist-social--linkedin-gray"> <span>Linkedin</span> </a> </div> <div> <a target="_blank" rel="noopener" href="https://web.archive.org/web/20230330190938/https://twitter.com/intent/tweet?url=https://www.nist.gov/labs-major-programs/laboratories&amp;status=https://www.nist.gov/labs-major-programs/laboratories" title="Twitter" class="nist-social nist-social--twitter-gray"> <span>Twitter</span> </a> </div> <div> <a href="https://web.archive.org/web/20230330190938/mailto:/?subject=NIST.gov&amp;body=Check out this site https://www.nist.gov/labs-major-programs/laboratories" title="Email" class="nist-social nist-social--envelope-gray"> <span>Email</span> </a> </div> </div> </div> </div> <!-- nist-index-ignore-end --> </div> <div class="nist-block"> <div class="text-with-summary"> <p>NIST runs a number of laboratories to assist in its mission to promote innovation and industrial competitiveness by advancing technology in ways that enhance economic security and improve our quality of life.</p> <h2><a data-entity-substitution="canonical" data-entity-type="node" data-entity-uuid="7e7694e8-0f0c-4410-98fd-30b97d52c487" href="/web/20230330190938/https://www.nist.gov/ctl" title="Communications Technology Laboratory">Communications Technology Laboratory</a></h2> <p>The Communications Technology Laboratory (CTL) promotes the development and deployment of advanced communications technologies through the conduct of leading-edge R&amp;D on both the metrology and understanding of physical phenomena, materials capabilities, and complex systems relevant to advanced communications. We perform research on high-speed electronics, wireless systems metrology, antennas, network design and optimization, spectrum sharing and public safety communications.聽</p> <ul><li><a data-entity-substitution="canonical" data-entity-type="node" data-entity-uuid="b13e7096-e337-49c7-a330-2856498550cf" href="/web/20230330190938/https://www.nist.gov/ctl/pscr" title="Public Safety Communications Research Division">Public Safety Communications Research</a></li> <li><a data-entity-substitution="canonical" data-entity-type="node" data-entity-uuid="b73cd45b-d404-4faf-83aa-2ca4a947bb90" href="/web/20230330190938/https://www.nist.gov/ctl/nasctn" title="National Advanced Spectrum and Communications Test Network (NASCTN)">National Advanced Spectrum and Communications Test Network</a></li> </ul><h2><a data-entity-substitution="canonical" data-entity-type="node" data-entity-uuid="85991569-08f2-4005-9619-1ea0d77b7f86" href="/web/20230330190938/https://www.nist.gov/el" title="Engineering Laboratory">Engineering Laboratory</a></h2> <p>The Engineering Laboratory promotes U.S. innovation and industrial competitiveness in areas of critical national priority by anticipating and meeting the measurement science and standards needs for technology-intensive manufacturing, construction and cyber-physical systems, including the Smart Grid Program Office, in ways that enhance economic prosperity and improve the quality of life.</p> <ul><li><a href="https://web.archive.org/web/20230330190938/https://www.nist.gov/news-events/news-updates/org/5646">News</a></li> <li><a href="https://web.archive.org/web/20230330190938/https://www.nist.gov/news-events/upcoming-events/org/5646">Events</a></li> <li><a data-entity-substitution="canonical" data-entity-type="node" data-entity-uuid="3ab81165-bbcd-46a3-b260-a2b3635461db" href="/web/20230330190938/https://www.nist.gov/el/about-el/research-opportunities" title="Work With Us">Research Opportunities</a></li> <li><a href="https://web.archive.org/web/20230330190938/https://www.nist.gov/services-resources/software/org/5646">Software</a></li> </ul><h2><a data-entity-substitution="canonical" data-entity-type="node" data-entity-uuid="55380107-472d-48bd-9b3c-0e34df996d7d" href="/web/20230330190938/https://www.nist.gov/itl" title="Information Technology Laboratory">Information Technology Laboratory</a></h2> <p>The Information Technology Laboratory develops and disseminates standards, measurements and testing for interoperability, security, usability and reliability of information systems, including cybersecurity standards and guidelines for federal agencies and U.S. industry, supporting these and measurement science at NIST through fundamental and applied research in computer science, mathematics and statistics.</p> <ul><li><a data-entity-substitution="canonical" data-entity-type="node" data-entity-uuid="d93e537b-1852-4185-a8e4-b5ea1fe460de" href="/web/20230330190938/https://www.nist.gov/cyberframework" title="Cybersecurity Framework">Cybersecurity Framework</a></li> <li><a href="https://web.archive.org/web/20230330190938/https://csrc.nist.gov/">Computer Security Resource Center</a> (CSRC)</li> <li><a href="https://web.archive.org/web/20230330190938/https://dlmf.nist.gov/">Digital Library of Mathematical Functions</a> (DLMF)</li> </ul><h2><a data-entity-substitution="canonical" data-entity-type="node" data-entity-uuid="b5475464-8b9c-4193-8bc3-251f45b65b69" href="/web/20230330190938/https://www.nist.gov/mml" title="Material Measurement Laboratory">Material Measurement Laboratory</a></h2> <p>MML serves as the national reference laboratory for measurements in the chemical, biological and material sciences through activities ranging from fundamental and applied research to the development and dissemination of certified reference materials, critically evaluated data and other programs and tools to assure the quality of measurement results. MML is also responsible for coordinating the NIST-wide Standard Reference Material and Standard Reference Data programs.</p> <ul><li><a href="https://web.archive.org/web/20230330190938/https://www.nist.gov/news-events/news-updates/org/5656">News</a></li> <li><a href="https://web.archive.org/web/20230330190938/https://www.nist.gov/news-events/upcoming-events/org/5656">Events</a></li> </ul><h2><a data-entity-substitution="canonical" data-entity-type="node" data-entity-uuid="6841ff20-4030-402d-bac8-2cb0ffa13b36" href="/web/20230330190938/https://www.nist.gov/pml" title="Physical Measurement Laboratory">Physical Measurement Laboratory</a></h2> <p>PML is a world leader in the science of measurement. We set the definitive U.S. standards for nearly every kind of measurement employed in commerce and research, provide NIST-traceable calibrations, and disseminate standards and best practices throughout the nation.聽</p> <ul><li><a data-entity-substitution="canonical" data-entity-type="node" data-entity-uuid="2b809e98-67a7-4a1f-8dca-4d7f42e6e539" href="/web/20230330190938/https://www.nist.gov/pml/owm" title="Office of Weights and Measures">Office of Weights &amp; Measures</a></li> <li><a data-entity-substitution="canonical" data-entity-type="node" data-entity-uuid="5a7f6ca7-2548-4adf-bba4-519d57f9e6bf" href="/web/20230330190938/https://www.nist.gov/pml/time-and-frequency-division" title="Time and Frequency Division">Time &amp; Frequency聽Division</a></li> <li><a data-entity-substitution="canonical" data-entity-type="node" data-entity-uuid="1f1492cf-9cf1-4fa4-b742-5dec477282da" href="/web/20230330190938/https://www.nist.gov/pml/productsservices" title="PML Products and Services">Products &amp; Services</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"> <div class="text-italic font-sans-2xs"> Created July 7, 2015, Updated January 18, 2022 </div> </div> </div> </div> </section> </div> <div data-elastic-exclude> <!-- nist-index-ignore-start --> <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/20230330190938/https://www.nist.gov/" title="National Institute of Standards and Technology" rel="home"> <img class="nist-footer__logo-img" src="/web/20230330190938im_/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/20230330190938/tel:301-975-2000">301-975-2000</a> </address> <p> <a href="https://web.archive.org/web/20230330190938/mailto:do-webmaster@nist.gov">Webmaster</a> | <a href="https://web.archive.org/web/20230330190938/https://www.nist.gov/about-nist/contact-us">Contact Us</a> | <a href="https://web.archive.org/web/20230330190938/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/20230330190938/https://twitter.com/NIST"> <span>Twitter</span> </a> <a class="nist-social nist-social--facebook-white" href="https://web.archive.org/web/20230330190938/https://www.facebook.com/NIST"> <span>Facebook</span> </a> <a class="nist-social nist-social--linkedin-white" href="https://web.archive.org/web/20230330190938/https://www.linkedin.com/company/nist"> <span>LinkedIn</span> </a> <a class="nist-social nist-social--instagram-white" href="https://web.archive.org/web/20230330190938/https://www.instagram.com/nist/"> <span>Instagram</span> </a> <a class="nist-social nist-social--youtube-white" href="https://web.archive.org/web/20230330190938/https://www.youtube.com/NIST"> <span>YouTube</span> </a> <a class="nist-social nist-social--giphy-white" href="https://web.archive.org/web/20230330190938/https://giphy.com/nist"> <span>Giphy</span> </a> <a class="nist-social nist-social--rss-white" href="https://web.archive.org/web/20230330190938/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/20230330190938/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/20230330190938/https://www.nist.gov/form/nist-gov-feedback?destination=/labs-major-programs/laboratories" 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/20230330190938/https://www.nist.gov/privacy-policy">Site Privacy</a> </li> <li class="nist-footer__menu-item"> <a href="https://web.archive.org/web/20230330190938/https://www.nist.gov/oism/accessibility">Accessibility</a> </li> <li class="nist-footer__menu-item"> <a href="https://web.archive.org/web/20230330190938/https://www.nist.gov/privacy">Privacy Program</a> </li> <li class="nist-footer__menu-item"> <a href="https://web.archive.org/web/20230330190938/https://www.nist.gov/oism/copyrights">Copyrights</a> </li> <li class="nist-footer__menu-item"> <a href="https://web.archive.org/web/20230330190938/https://www.commerce.gov/vulnerability-disclosure-policy">Vulnerability Disclosure</a> </li> <li class="nist-footer__menu-item"> <a href="https://web.archive.org/web/20230330190938/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/20230330190938/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/20230330190938/https://www.nist.gov/environmental-policy-statement">Environmental Policy</a> </li> <li class="nist-footer__menu-item"> <a href="https://web.archive.org/web/20230330190938/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/20230330190938/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/20230330190938/https://www.commerce.gov/">Commerce.gov</a> </li> <li class="nist-footer__menu-item"> <a href="https://web.archive.org/web/20230330190938/http://www.science.gov/">Science.gov</a> </li> <li class="nist-footer__menu-item"> <a href="https://web.archive.org/web/20230330190938/http://www.usa.gov/">USA.gov</a> </li> <li class="nist-footer__menu-item"> <a href="https://web.archive.org/web/20230330190938/https://vote.gov/">Vote.gov</a> </li> </ul> </div> </div> </footer> <!-- nist-index-ignore-end --> </div> </div> <script type="application/json" data-drupal-selector="drupal-settings-json">{"path":{"baseUrl":"\/","scriptPath":null,"pathPrefix":"","currentPath":"node\/388016","currentPathIsAdmin":false,"isFront":false,"currentLanguage":"en"},"pluralDelimiter":"\u0003","suppressDeprecationErrors":true,"ajaxPageState":{"theme":"nist_www","libraries":"back_to_top\/back_to_top_icon,back_to_top\/back_to_top_js,extlink\/drupal.extlink,google_analytics\/google_analytics,nist\/global,nist\/global-js,nist\/header-js,nist_linkit_filter\/nist_linkit_filter_ga,nist_www\/global,nist_www\/global-js,nist_www\/microsite,social_media\/basic,system\/base"},"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/20230330190938js_/https://www.nist.gov/sites/default/files/js/js_i4o9D8_3bE6z3cNmVPWaLBVMdElhJQmLrvIinBgEJ54.js"></script> <script src="https://web.archive.org/web/20230330190938js_/https://siteimproveanalytics.com/js/siteanalyze_6017546.js" async></script> <script src="/web/20230330190938js_/https://www.nist.gov/sites/default/files/js/js_c0hecns0CAftnzmCOwBYLxRa48pqi1xWMZwQH4JQ1gU.js"></script> <script type="text/javascript">window.NREUM||(NREUM={});NREUM.info={"beacon":"gov-bam.nr-data.net","licenseKey":"37b7ccb661","applicationID":"1089704227","transactionName":"YFxUN0sADEdYVkBaClkWdwBNCA1aFkVVVABoWlcAUQQ=","queueTime":4,"applicationTime":31,"atts":"TBtXQQMaH0k=","errorBeacon":"gov-bam.nr-data.net","agent":""}</script></body> </html> <!-- FILE ARCHIVED ON 19:09:38 Mar 30, 2023 AND RETRIEVED FROM THE INTERNET ARCHIVE ON 18:30:17 Nov 28, 2024. JAVASCRIPT APPENDED BY WAYBACK MACHINE, COPYRIGHT INTERNET ARCHIVE. ALL OTHER CONTENT MAY ALSO BE PROTECTED BY COPYRIGHT (17 U.S.C. SECTION 108(a)(3)). --> <!-- playback timings (ms): captures_list: 0.478 exclusion.robots: 0.024 exclusion.robots.policy: 0.015 esindex: 0.009 cdx.remote: 6.712 LoadShardBlock: 269.606 (3) PetaboxLoader3.datanode: 69.808 (4) PetaboxLoader3.resolve: 255.95 (3) load_resource: 124.548 -->

Pages: 1 2 3 4 5 6 7 8 9 10