{"id":7049,"date":"2023-11-20T11:24:59","date_gmt":"2023-11-20T10:24:59","guid":{"rendered":"https:\/\/tera-environnement.com\/maitrise-de-contamination\/contamination-chimique-de-surface\/"},"modified":"2024-10-09T17:23:31","modified_gmt":"2024-10-09T15:23:31","slug":"surface-chemical-contamination","status":"publish","type":"page","link":"https:\/\/tera-environnement.com\/en\/contamination-control\/surface-chemical-contamination\/","title":{"rendered":"Surface chemical contamination"},"content":{"rendered":"\t\t<div data-elementor-type=\"wp-page\" data-elementor-id=\"7049\" class=\"elementor elementor-7049 elementor-2039\" data-elementor-post-type=\"page\">\n\t\t\t\t<div class=\"elementor-element elementor-element-8a29986 e-flex e-con-boxed e-con e-parent\" data-id=\"8a29986\" data-element_type=\"container\" data-e-type=\"container\">\n\t\t\t\t\t<div class=\"e-con-inner\">\n\t\t\t\t<div class=\"elementor-element elementor-element-8045290 elementor-widget elementor-widget-shortcode\" data-id=\"8045290\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"shortcode.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t<div class=\"elementor-shortcode\"><ul id=\"breadcrumbs\"><li><a href=\"https:\/\/tera-environnement.com\/en\/\">Home<\/a><\/li><\/ul><\/div>\n\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t<div class=\"elementor-element elementor-element-2faaf02 e-con-full e-flex e-con e-child\" data-id=\"2faaf02\" data-element_type=\"container\" data-e-type=\"container\">\n\t\t\t\t<div class=\"elementor-element elementor-element-03b82f7 elementor-widget__width-auto elementor-widget elementor-widget-image\" data-id=\"03b82f7\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"image.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<img decoding=\"async\" width=\"68\" height=\"69\" src=\"https:\/\/tera-environnement.com\/wp-content\/uploads\/2023\/09\/fleche-grise.png\" class=\"attachment-large size-large wp-image-389\" alt=\"\" \/>\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-c2a4de8 elementor-widget__width-auto elementor-widget elementor-widget-heading\" data-id=\"c2a4de8\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"heading.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t<h1 class=\"elementor-heading-title elementor-size-default\">Surface chemical contamination<\/h1>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t<div class=\"elementor-element elementor-element-1d7db96 e-flex e-con-boxed e-con e-parent\" data-id=\"1d7db96\" data-element_type=\"container\" data-e-type=\"container\">\n\t\t\t\t\t<div class=\"e-con-inner\">\n\t\t\t\t<div class=\"elementor-element elementor-element-e5f0dd2 elementor-widget elementor-widget-spacer\" data-id=\"e5f0dd2\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"spacer.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t<div class=\"elementor-spacer\">\n\t\t\t<div class=\"elementor-spacer-inner\"><\/div>\n\t\t<\/div>\n\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<section class=\"elementor-section elementor-top-section elementor-element elementor-element-7003b0a elementor-section-boxed elementor-section-height-default elementor-section-height-default\" data-id=\"7003b0a\" data-element_type=\"section\" data-e-type=\"section\">\n\t\t\t\t\t\t<div class=\"elementor-container elementor-column-gap-default\">\n\t\t\t\t\t<div class=\"elementor-column elementor-col-50 elementor-top-column elementor-element elementor-element-c048300\" data-id=\"c048300\" data-element_type=\"column\" data-e-type=\"column\">\n\t\t\t<div class=\"elementor-widget-wrap elementor-element-populated\">\n\t\t\t\t\t\t<div class=\"elementor-element elementor-element-7101d38 elementor-widget__width-initial elementor-widget elementor-widget-image\" data-id=\"7101d38\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"image.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<img fetchpriority=\"high\" decoding=\"async\" width=\"512\" height=\"288\" src=\"https:\/\/tera-environnement.com\/wp-content\/uploads\/2024\/01\/gants-e1711710939647.png\" class=\"attachment-large size-large wp-image-2489\" alt=\"\" \/>\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/div>\n\t\t\t\t<div class=\"elementor-column elementor-col-50 elementor-top-column elementor-element elementor-element-058ae96\" data-id=\"058ae96\" data-element_type=\"column\" data-e-type=\"column\">\n\t\t\t<div class=\"elementor-widget-wrap elementor-element-populated\">\n\t\t\t\t\t\t<div class=\"elementor-element elementor-element-fe0f6f1 elementor-widget__width-initial elementor-widget elementor-widget-heading\" data-id=\"fe0f6f1\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"heading.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t<h2 class=\"elementor-heading-title elementor-size-default\">Why is it important to characterize surface contamination in cleanrooms?<\/h2>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-0e11bda elementor-widget elementor-widget-spacer\" data-id=\"0e11bda\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"spacer.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t<div class=\"elementor-spacer\">\n\t\t\t<div class=\"elementor-spacer-inner\"><\/div>\n\t\t<\/div>\n\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-046e4bf elementor-widget elementor-widget-text-editor\" data-id=\"046e4bf\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t<p>Characterization of surface contamination in cleanrooms is essential to ensure strict hygiene conditions in these sensitive environments.<\/p>\n\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/section>\n\t\t<div class=\"elementor-element elementor-element-11ddd08 e-flex e-con-boxed e-con e-parent\" data-id=\"11ddd08\" data-element_type=\"container\" data-e-type=\"container\">\n\t\t\t\t\t<div class=\"e-con-inner\">\n\t\t<div class=\"elementor-element elementor-element-d97326d e-flex e-con-boxed e-con e-child\" data-id=\"d97326d\" data-element_type=\"container\" data-e-type=\"container\">\n\t\t\t\t\t<div class=\"e-con-inner\">\n\t\t<div class=\"elementor-element elementor-element-7abf01e e-con-full e-flex e-con e-child\" data-id=\"7abf01e\" data-element_type=\"container\" data-e-type=\"container\">\n\t\t\t\t<div class=\"elementor-element elementor-element-ea8046b elementor-widget elementor-widget-text-editor\" data-id=\"ea8046b\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t<p>A cleanroom is a space where the concentration of particles must be kept as low as possible. This enables delicate manufacturing techniques or research studies to be carried out under sterile conditions if necessary. <\/p>\n<p>International standards define rigorous rules for the operation of cleanrooms. They cover the concentration of airborne particles, air filtration, cleaning of the room, equipment, transport devices, machines and employee working clothes. These standards vary according to the sector of activity and the specific purpose of the cleanroom.  <\/p>\n\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t<div class=\"elementor-element elementor-element-fc0f22c e-con-full e-flex e-con e-child\" data-id=\"fc0f22c\" data-element_type=\"container\" data-e-type=\"container\">\n\t\t<div class=\"elementor-element elementor-element-ce40014 e-con-full e-flex e-con e-child\" data-id=\"ce40014\" data-element_type=\"container\" data-e-type=\"container\">\n\t\t\t\t<div class=\"elementor-element elementor-element-8b24c5c elementor-widget elementor-widget-image\" data-id=\"8b24c5c\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"image.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<img decoding=\"async\" width=\"512\" height=\"288\" src=\"https:\/\/tera-environnement.com\/wp-content\/uploads\/2024\/01\/proc.jpg\" class=\"attachment-large size-large wp-image-2492\" alt=\"\" srcset=\"https:\/\/tera-environnement.com\/wp-content\/uploads\/2024\/01\/proc.jpg 512w, https:\/\/tera-environnement.com\/wp-content\/uploads\/2024\/01\/proc-300x169.jpg 300w\" sizes=\"(max-width: 512px) 100vw, 512px\" \/>\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t<div class=\"elementor-element elementor-element-202ad53 e-con-full e-flex e-con e-child\" data-id=\"202ad53\" data-element_type=\"container\" data-e-type=\"container\">\n\t\t\t\t<div class=\"elementor-element elementor-element-698d163 elementor-widget elementor-widget-text-editor\" data-id=\"698d163\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t<p>In fields such as microchip manufacturing, drug production or food preparation, surface contamination can compromise product quality. Contamination control guarantees the reliability and safety of end products. <\/p>\n<p>In short, characterizing surface contamination in cleanrooms is crucial to maintaining optimum conditions of cleanliness, safety and efficiency in these specialized environments.<\/p>\n\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t<div class=\"elementor-element elementor-element-2e38db4 e-flex e-con-boxed e-con e-child\" data-id=\"2e38db4\" data-element_type=\"container\" data-e-type=\"container\">\n\t\t\t\t\t<div class=\"e-con-inner\">\n\t\t\t\t<div class=\"elementor-element elementor-element-13ce631 elementor-widget elementor-widget-heading\" data-id=\"13ce631\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"heading.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t<h2 class=\"elementor-heading-title elementor-size-default\">Why choose TERA Environnement to control contamination in your cleanroom? <\/h2>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t<div class=\"elementor-element elementor-element-5ea3ee0 e-con-full e-flex e-con e-child\" data-id=\"5ea3ee0\" data-element_type=\"container\" data-e-type=\"container\">\n\t\t\t\t<div class=\"elementor-element elementor-element-2c8cb26 elementor-widget elementor-widget-text-editor\" data-id=\"2c8cb26\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t<p>Our laboratory has over 20 years&#8217; experience in cleanroom contamination control, and is backed with high-performance analytical equipment for the analysis of a wide range of organic and inorganic chemical contaminants present in air or on surfaces at trace levels.<\/p>\n\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t<div class=\"elementor-element elementor-element-f0e467a e-con-full e-flex e-con e-child\" data-id=\"f0e467a\" data-element_type=\"container\" data-e-type=\"container\" data-settings=\"{&quot;background_background&quot;:&quot;classic&quot;}\">\n\t\t\t\t<div class=\"elementor-element elementor-element-70170bb elementor-widget elementor-widget-text-editor\" data-id=\"70170bb\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t<p><b>Find out why you should choose our laboratory to help you control contamination in your cleanroom: <\/b><\/p>\n<ul>\n<li aria-level=\"1\">Over 20 years&#8217; experience in cleanroom air analysis<\/li>\n<li aria-level=\"1\">High-performance analytical equipment for your analyses<\/li>\n<li aria-level=\"1\">Wide range of compounds that can be analyzed <\/li>\n<li aria-level=\"1\">Very low analytical thresholds or limits of quantification (LOQ) ranging from ppt to ppb<\/li>\n<li aria-level=\"1\">Flexibility and responsiveness<\/li>\n<\/ul>\n\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t<div class=\"elementor-element elementor-element-b49db9d e-flex e-con-boxed e-con e-child\" data-id=\"b49db9d\" data-element_type=\"container\" data-e-type=\"container\">\n\t\t\t\t\t<div class=\"e-con-inner\">\n\t\t\t\t<div class=\"elementor-element elementor-element-19b7282 elementor-widget elementor-widget-spacer\" data-id=\"19b7282\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"spacer.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t<div class=\"elementor-spacer\">\n\t\t\t<div class=\"elementor-spacer-inner\"><\/div>\n\t\t<\/div>\n\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-a9b859e elementor-widget__width-initial elementor-widget elementor-widget-heading\" data-id=\"a9b859e\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"heading.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t<h2 class=\"elementor-heading-title elementor-size-default\">What resources are available to characterize surface contamination in cleanrooms? <\/h2>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t<div class=\"elementor-element elementor-element-6876bd0 e-con-full e-flex e-con e-child\" data-id=\"6876bd0\" data-element_type=\"container\" data-e-type=\"container\">\n\t\t\t\t<div class=\"elementor-element elementor-element-b6e7513 elementor-widget elementor-widget-text-editor\" data-id=\"b6e7513\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t<ul>\n<li aria-level=\"1\"><b>Surface sampling using a wipe <\/b><\/li>\n<\/ul>\n<p>Wipe sampling is useful for assessing surface contamination, particularly in cases where no deposits are actually visible on the surface to the naked eye.<\/p>\n<p>The choice of wipes to be used depends on the type of surface to be sampled, and the nature of the pollutants sought. Depending on the compounds to be tested, the wipes can be soaked in water or an organic solvent. <\/p>\n<p><b><\/b><\/p>\n<ul>\n<li aria-level=\"1\"><b>Surface deposit sampling <\/b><\/li>\n<\/ul>\n<p>In the case of visible surface contamination, e.g. at an exhaust outlet, where a deposit of just a few grams can be collected, the deposit can be sent directly to the laboratory for analysis.<\/p>\n\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t<div class=\"elementor-element elementor-element-69d4614 e-flex e-con-boxed e-con e-child\" data-id=\"69d4614\" data-element_type=\"container\" data-e-type=\"container\">\n\t\t\t\t\t<div class=\"e-con-inner\">\n\t\t\t\t<div class=\"elementor-element elementor-element-75add7d elementor-widget elementor-widget-heading\" data-id=\"75add7d\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"heading.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t<h2 class=\"elementor-heading-title elementor-size-default\">What compounds are measured on wipes or deposits? <\/h2>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t<div class=\"elementor-element elementor-element-6dbff51 e-con-full e-flex e-con e-child\" data-id=\"6dbff51\" data-element_type=\"container\" data-e-type=\"container\">\n\t\t\t\t<div class=\"elementor-element elementor-element-22b7d10 elementor-widget elementor-widget-text-editor\" data-id=\"22b7d10\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t<p>TERA Environnement&#8217;s high-performance analytical equipment enables us to analyze various families of compounds on wipes or deposits. Before analysis, wipes or deposits are extracted with water, acidified water or an organic solvent, depending on the compounds sought. In the case of crystalline silica, solvent extraction is replaced by combustion prior to analysis.<br \/>Compounds that can be analyzed on wipes or deposits are listed below.   <\/p>\n\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t<div class=\"elementor-element elementor-element-265eb3e e-con-full e-flex e-con e-child\" data-id=\"265eb3e\" data-element_type=\"container\" data-e-type=\"container\">\n\t\t\t\t<div class=\"elementor-element elementor-element-7a9ed08 elementor-widget elementor-widget-accordion\" data-id=\"7a9ed08\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"accordion.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t<div class=\"elementor-accordion\">\n\t\t\t\t\t\t\t<div class=\"elementor-accordion-item\">\n\t\t\t\t\t<div id=\"elementor-tab-title-1281\" class=\"elementor-tab-title\" data-tab=\"1\" role=\"button\" aria-controls=\"elementor-tab-content-1281\" aria-expanded=\"false\">\n\t\t\t\t\t\t\t\t\t\t\t\t\t<span class=\"elementor-accordion-icon elementor-accordion-icon-left\" aria-hidden=\"true\">\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<span class=\"elementor-accordion-icon-closed\"><i class=\"fas fa-plus\"><\/i><\/span>\n\t\t\t\t\t\t\t\t<span class=\"elementor-accordion-icon-opened\"><i class=\"fas fa-minus\"><\/i><\/span>\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t<\/span>\n\t\t\t\t\t\t\t\t\t\t\t\t<a class=\"elementor-accordion-title\" tabindex=\"0\">Metals<\/a>\n\t\t\t\t\t<\/div>\n\t\t\t\t\t<div id=\"elementor-tab-content-1281\" class=\"elementor-tab-content elementor-clearfix\" data-tab=\"1\" role=\"region\" aria-labelledby=\"elementor-tab-title-1281\"><ul>\n<li>Aluminum (Al); Antimony (Sb); Silver (Ag); Arsenic (As); Barium (Ba); Beryllium (Be); Boron (B); Cadmium (Cd); Cerium (Ce); Cesium (Cs); Chromium (Cr); Cobalt (Co); Copper (Cu); Tin (Sn); Iron (Fe); Gallium (Ga); Lanthanum (La); Lithium (Li); Manganese (Mn); Mercury (Hg); Molybdenum (Mo); Nickel (Ni); Palladium (Pd); Phosphorus (P); Platinum (Pt); Lead (Pb); Rhenium (Re); Rubidium (Rb) ; Scandium (Sc); Selenium (Se); Silicon (Si); Sulfur (S); Strontium (Sr); Tellurium (Te); Thallium (Tl); Titanium (Ti); Tungsten (W); Uranium (U); Vanadium (V); Zinc (Zn); Zirconium (Zr) etc.  <\/li>\n<\/ul>\n<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t\t\t<div class=\"elementor-accordion-item\">\n\t\t\t\t\t<div id=\"elementor-tab-title-1282\" class=\"elementor-tab-title\" data-tab=\"2\" role=\"button\" aria-controls=\"elementor-tab-content-1282\" aria-expanded=\"false\">\n\t\t\t\t\t\t\t\t\t\t\t\t\t<span class=\"elementor-accordion-icon elementor-accordion-icon-left\" aria-hidden=\"true\">\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<span class=\"elementor-accordion-icon-closed\"><i class=\"fas fa-plus\"><\/i><\/span>\n\t\t\t\t\t\t\t\t<span class=\"elementor-accordion-icon-opened\"><i class=\"fas fa-minus\"><\/i><\/span>\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t<\/span>\n\t\t\t\t\t\t\t\t\t\t\t\t<a class=\"elementor-accordion-title\" tabindex=\"0\">Crystalline silica<\/a>\n\t\t\t\t\t<\/div>\n\t\t\t\t\t<div id=\"elementor-tab-content-1282\" class=\"elementor-tab-content elementor-clearfix\" data-tab=\"2\" role=\"region\" aria-labelledby=\"elementor-tab-title-1282\"><ul>\n<li>Quartz; Cristobalite; Tridymite<\/li>\n<\/ul>\n<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t\t\t<div class=\"elementor-accordion-item\">\n\t\t\t\t\t<div id=\"elementor-tab-title-1283\" class=\"elementor-tab-title\" data-tab=\"3\" role=\"button\" aria-controls=\"elementor-tab-content-1283\" aria-expanded=\"false\">\n\t\t\t\t\t\t\t\t\t\t\t\t\t<span class=\"elementor-accordion-icon elementor-accordion-icon-left\" aria-hidden=\"true\">\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<span class=\"elementor-accordion-icon-closed\"><i class=\"fas fa-plus\"><\/i><\/span>\n\t\t\t\t\t\t\t\t<span class=\"elementor-accordion-icon-opened\"><i class=\"fas fa-minus\"><\/i><\/span>\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t<\/span>\n\t\t\t\t\t\t\t\t\t\t\t\t<a class=\"elementor-accordion-title\" tabindex=\"0\">Acids and bases<\/a>\n\t\t\t\t\t<\/div>\n\t\t\t\t\t<div id=\"elementor-tab-content-1283\" class=\"elementor-tab-content elementor-clearfix\" data-tab=\"3\" role=\"region\" aria-labelledby=\"elementor-tab-title-1283\"><ul>\n<li>Acetate; Bromide (Br<sup>&#8211;<\/sup>); Chloride (Cl<sup>&#8211;<\/sup>); Fluoride (F<sup>&#8211;<\/sup>); Formate; Nitrate (NO<sub>3<\/sub><sup>&#8211;<\/sup>); Nitrite (NO<sub>2<\/sub><sup>&#8211;<\/sup>); Oxalate; Phosphate (PO<sub>4<\/sub><sup>3-<\/sup>); Propionate; Sulfate (SO<sub>4<\/sub><sup>2-<\/sup>); Ammonium (NH<sub>4<\/sub><sup>+<\/sup>); etc.<\/li>\n<\/ul>\n<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t\t\t<div class=\"elementor-accordion-item\">\n\t\t\t\t\t<div id=\"elementor-tab-title-1284\" class=\"elementor-tab-title\" data-tab=\"4\" role=\"button\" aria-controls=\"elementor-tab-content-1284\" aria-expanded=\"false\">\n\t\t\t\t\t\t\t\t\t\t\t\t\t<span class=\"elementor-accordion-icon elementor-accordion-icon-left\" aria-hidden=\"true\">\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<span class=\"elementor-accordion-icon-closed\"><i class=\"fas fa-plus\"><\/i><\/span>\n\t\t\t\t\t\t\t\t<span class=\"elementor-accordion-icon-opened\"><i class=\"fas fa-minus\"><\/i><\/span>\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t<\/span>\n\t\t\t\t\t\t\t\t\t\t\t\t<a class=\"elementor-accordion-title\" tabindex=\"0\">Volatile Organic Compounds (VOCs) and Screening for major VOCs<\/a>\n\t\t\t\t\t<\/div>\n\t\t\t\t\t<div id=\"elementor-tab-content-1284\" class=\"elementor-tab-content elementor-clearfix\" data-tab=\"4\" role=\"region\" aria-labelledby=\"elementor-tab-title-1284\"><p>Please contact us<\/p>\n<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t<div class=\"elementor-element elementor-element-2a774fe e-flex e-con-boxed e-con e-child\" data-id=\"2a774fe\" data-element_type=\"container\" data-e-type=\"container\">\n\t\t\t\t\t<div class=\"e-con-inner\">\n\t\t<div class=\"elementor-element elementor-element-8fe68ac e-con-full e-flex e-con e-child\" data-id=\"8fe68ac\" data-element_type=\"container\" data-e-type=\"container\">\n\t\t\t\t<div class=\"elementor-element elementor-element-dc15e92 elementor-widget elementor-widget-image\" data-id=\"dc15e92\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"image.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<img loading=\"lazy\" decoding=\"async\" width=\"300\" height=\"195\" src=\"https:\/\/tera-environnement.com\/wp-content\/uploads\/2024\/01\/ampoule-300x195.jpg\" class=\"attachment-medium size-medium wp-image-2509\" alt=\"\" srcset=\"https:\/\/tera-environnement.com\/wp-content\/uploads\/2024\/01\/ampoule-300x195.jpg 300w, https:\/\/tera-environnement.com\/wp-content\/uploads\/2024\/01\/ampoule.jpg 395w\" sizes=\"(max-width: 300px) 100vw, 300px\" \/>\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t<div class=\"elementor-element elementor-element-85bcd1d e-con-full e-flex e-con e-child\" data-id=\"85bcd1d\" data-element_type=\"container\" data-e-type=\"container\">\n\t\t\t\t<div class=\"elementor-element elementor-element-724905b elementor-widget elementor-widget-text-editor\" data-id=\"724905b\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t<p>TERA Environnement has been helping its customers control chemical contamination in their cleanrooms for over 20 years!<\/p>\n\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t<div class=\"elementor-element elementor-element-7a0a6c1 e-flex e-con-boxed e-con e-child\" data-id=\"7a0a6c1\" data-element_type=\"container\" data-e-type=\"container\">\n\t\t\t\t\t<div class=\"e-con-inner\">\n\t\t\t\t<div class=\"elementor-element 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class=\"elementor-button elementor-button-link elementor-size-sm\" href=\"mailto:commercial@tera-environnement.com%20\">\n\t\t\t\t\t\t<span class=\"elementor-button-content-wrapper\">\n\t\t\t\t\t\t\t\t\t<span class=\"elementor-button-text\">Quote request<\/span>\n\t\t\t\t\t<\/span>\n\t\t\t\t\t<\/a>\n\t\t\t\t<\/div>\n\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t<div class=\"elementor-element elementor-element-509d25f e-flex e-con-boxed e-con e-parent\" data-id=\"509d25f\" data-element_type=\"container\" data-e-type=\"container\">\n\t\t\t\t\t<div class=\"e-con-inner\">\n\t\t<div class=\"elementor-element elementor-element-28ebc66 e-con-full e-flex e-con e-child\" data-id=\"28ebc66\" data-element_type=\"container\" data-e-type=\"container\">\n\t\t\t\t<div class=\"elementor-element elementor-element-d4f7737 elementor-widget elementor-widget-spacer\" data-id=\"d4f7737\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"spacer.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t<div class=\"elementor-spacer\">\n\t\t\t<div class=\"elementor-spacer-inner\"><\/div>\n\t\t<\/div>\n\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t","protected":false},"excerpt":{"rendered":"<p>Why is it important to characterize surface contamination in cleanrooms? Characterization of surface contamination in cleanrooms is essential to ensure strict hygiene conditions in these sensitive environments. A cleanroom is a space where the concentration of particles must be kept as low as possible. This enables delicate manufacturing techniques or research studies to be carried [&hellip;]<\/p>\n","protected":false},"author":2,"featured_media":0,"parent":7043,"menu_order":2,"comment_status":"closed","ping_status":"closed","template":"elementor_header_footer","meta":{"_acf_changed":false,"footnotes":""},"class_list":["post-7049","page","type-page","status-publish","hentry"],"acf":[],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v27.4 - https:\/\/yoast.com\/product\/yoast-seo-wordpress\/ -->\n<title>Chemical contamination of cleanroom surfaces<\/title>\n<meta name=\"description\" content=\"Tera Environnement: Analytical services to detect and measure chemical contamination of cleanroom surfaces\" \/>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/tera-environnement.com\/en\/contamination-control\/surface-chemical-contamination\/\" \/>\n<meta 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