{"id":2854,"date":"2022-12-20T13:33:52","date_gmt":"2022-12-20T11:33:52","guid":{"rendered":"https:\/\/www.vsl.nl\/mass\/"},"modified":"2025-10-23T12:17:59","modified_gmt":"2025-10-23T10:17:59","slug":"mass","status":"publish","type":"page","link":"https:\/\/www.vsl.nl\/en\/areas-of-expertise\/mass\/","title":{"rendered":"Mass"},"content":{"rendered":"<div class=\"wpb-content-wrapper\"><p>[vc_section full_width=&#8221;stretch_row&#8221; content_placement=&#8221;middle&#8221; css=&#8221;.vc_custom_1668958783839{background-image: url(https:\/\/www.vsl.nl\/wp-content\/uploads\/2022\/11\/Lab-Foto-WEB-28.jpg?id=2216) !important;background-position: center !important;background-repeat: no-repeat !important;background-size: cover !important;}&#8221; el_class=&#8221;main_header gradient_header dg-position-realtive&#8221;][vc_row equal_height=&#8221;yes&#8221; content_placement=&#8221;middle&#8221; el_class=&#8221;dg-header&#8211;small&#8221;][vc_column width=&#8221;2\/3&#8243; el_class=&#8221;dg-padding-none&#8221;][vc_column_text css=&#8221;.vc_custom_1668424218668{margin-bottom: 0px !important;padding-bottom: 0px !important;}&#8221; el_class=&#8221;text-white&#8221;]<\/p>\n<h1>Mass metrology<\/h1>\n<p>We measure all sorts of things every day, from potatoes on sale at the greengrocer&#8217;s to the ingredients for medication. Accurate measurements of mass are important for safety, health and cost reasons.<br \/>\n[\/vc_column_text][\/vc_column][vc_column width=&#8221;1\/3&#8243;][\/vc_column][\/vc_row][\/vc_section][vc_section full_width=&#8221;stretch_row&#8221; disable_element=&#8221;yes&#8221; el_class=&#8221;brand_element_small dg-padding-small&#8221; css=&#8221;.vc_custom_1668424169246{background-color: #fafafa !important;}&#8221;][vc_row][vc_column el_class=&#8221;dg-padding-none&#8221;][vc_btn title=&#8221;Introduction&#8221; style=&#8221;flat&#8221; shape=&#8221;square&#8221; size=&#8221;sm&#8221; css=&#8221;.vc_custom_1666597805099{margin-bottom: 0px !important;border-radius: 5px !important;}&#8221; el_class=&#8221;page_btn page_btn_active&#8221; link=&#8221;url:http%3A%2F%2Fwww.vsl.nl%2Fvakgebieden%2Fmassa%2F|title:Introduction%20mass|&#8221;][vc_btn title=&#8221;Calibration&#8221; style=&#8221;flat&#8221; shape=&#8221;square&#8221; size=&#8221;sm&#8221; css=&#8221;.vc_custom_1666338430804{margin-bottom: 0px !important;margin-left: 25px !important;border-radius: 5px !important;}&#8221; el_class=&#8221;page_btn&#8221; link=&#8221;url:https%3A%2F%2Fwww.vsl.nl%2Fvakgebieden%2Fmassa%2Fkalibratie|title:Calibration%20mass|&#8221;][vc_btn title=&#8221;Proficiency Testing&#8221; style=&#8221;flat&#8221; shape=&#8221;square&#8221; size=&#8221;sm&#8221; css=&#8221;.vc_custom_1666338453060{margin-bottom: 0px !important;margin-left: 25px !important;border-radius: 5px !important;}&#8221; el_class=&#8221;page_btn&#8221; link=&#8221;url:https%3A%2F%2Fwww.vsl.nl%2Fvakgebieden%2Fmassa%2Fringvergelijkingen|title:Interlaboratory%20comparisons%20mass|&#8221;][vc_btn title=&#8221;Training&#8221; style=&#8221;flat&#8221; shape=&#8221;square&#8221; size=&#8221;sm&#8221; css=&#8221;.vc_custom_1666597799059{margin-bottom: 0px !important;margin-left: 25px !important;border-radius: 5px !important;}&#8221; el_class=&#8221;page_btn&#8221; link=&#8221;url:https%3A%2F%2Fwww.vsl.nl%2Fvakgebieden%2Fmassa%2Ftraining|title:Training%20mass|&#8221;][vc_btn title=&#8221;VSL Certification&#8221; style=&#8221;flat&#8221; shape=&#8221;square&#8221; size=&#8221;sm&#8221; css=&#8221;.vc_custom_1666364014026{margin-bottom: 0px !important;margin-left: 25px !important;border-radius: 5px !important;}&#8221; el_class=&#8221;page_btn&#8221; link=&#8221;url:https%3A%2F%2Fwww.vsl.nl%2Fvakgebieden%2Fmassa%2Fvsl-certificeringen%2F|title:Training%20mass|&#8221;][\/vc_column][\/vc_row][\/vc_section][vc_section el_class=&#8221;dg-padding-mid brand_element_small&#8221;][vc_row][vc_column width=&#8221;2\/3&#8243; el_class=&#8221;full_width_responsive dg-padding-none&#8221;][vc_column_text css=&#8221;.vc_custom_1669123440343{padding-right: 10% !important;}&#8221;]<\/p>\n<p class=\"header_subtext\">Introduction<\/p>\n<h2>Mass<\/h2>\n<p>We measure all sorts of things every day, from potatoes on sale at the greengrocer&#8217;s to the ingredients for medication. Extreme precision is required for the latter, because an excess of as little as 1 mg (0.001 grams) of a particular substance in a drug could already be lethal. The detection of illicit drug use requires even greater accuracy. In that case, our measurements are in nanograms per litre (0.000 000 001 g\/L).<\/p>\n<p>But mass measurements are not restricted to small quantities. In ports, ships unload large quantities of bulk cargo, which is often charged by weight. Time is money, and measurements must take place during unloading on conveyor belts, making accuracy a complex matter. It goes without saying that accurate measurement of mass is important for safety, health and cost reasons.[\/vc_column_text][vc_column_text]<\/p>\n<h2>VSL and mass<\/h2>\n<p>VSL manages the primary standard for mass and we provide various mass metrology services to clients including weighing scale producers and calibration laboratories.<br \/>\n[\/vc_column_text][vc_column_text]<\/p>\n<h2>Consultancy<\/h2>\n<p>We support and advise manufacturers and end users with regard to questions, enabling them to improve measurement and inspection methods to optimise the quality of their processes and products.[\/vc_column_text][\/vc_column][vc_column width=&#8221;1\/3&#8243; css=&#8221;.vc_custom_1757513522140{margin-top: 0px !important;margin-right: 0px !important;margin-bottom: 0px !important;margin-left: 0px !important;padding-top: 0px !important;padding-right: 0px !important;padding-left: 0px !important;}&#8221; el_class=&#8221;full_width_responsive tablet_expert&#8221;]<div class=\"templatera_shortcode\"><section class=\"vc_section\"><div class=\"vc_row wpb_row vc_row-fluid full_width_responsive\"><div class=\"dg-specialist--inner dg-padding--none-inner wpb_column vc_column_container vc_col-sm-12\"><div class=\"vc_column-inner vc_custom_1757057705883\"><div class=\"wpb_wrapper\">\n\t<div  class=\"wpb_single_image wpb_content_element vc_align_left  vc_custom_1765289950172  dg-expert--image\">\n\t\t\n\t\t<figure class=\"wpb_wrapper vc_figure\">\n\t\t\t<div class=\"vc_single_image-wrapper   vc_box_border_grey\"><img decoding=\"async\" width=\"500\" height=\"333\" data-src=\"https:\/\/www.vsl.nl\/wp-content\/uploads\/2025\/12\/Marcel-van-Est-portret-blauw.jpg\" class=\"vc_single_image-img attachment-full lazyload\" alt=\"\" title=\"Marcel van Est portret blauw\" data-srcset=\"https:\/\/www.vsl.nl\/wp-content\/uploads\/2025\/12\/Marcel-van-Est-portret-blauw.jpg 500w, https:\/\/www.vsl.nl\/wp-content\/uploads\/2025\/12\/Marcel-van-Est-portret-blauw-300x200.jpg 300w\" data-sizes=\"(max-width: 500px) 100vw, 500px\"  data-dt-location=\"https:\/\/www.vsl.nl\/en\/marcel-van-est-portret-blauw\/\" src=\"data:image\/svg+xml;base64,PHN2ZyB3aWR0aD0iMSIgaGVpZ2h0PSIxIiB4bWxucz0iaHR0cDovL3d3dy53My5vcmcvMjAwMC9zdmciPjwvc3ZnPg==\" style=\"--smush-placeholder-width: 500px; --smush-placeholder-aspect-ratio: 500\/333;\" \/><\/div>\n\t\t<\/figure>\n\t<\/div>\n<div class=\"vc_row wpb_row vc_inner vc_row-fluid dg-padding--square vc_custom_1757057909078 vc_row-o-equal-height vc_row-o-content-middle vc_row-flex\"><div class=\"dg-padding--none-inner dg-expert--inner-content wpb_column vc_column_container vc_col-sm-12\"><div class=\"vc_column-inner vc_custom_1757058090823\"><div class=\"wpb_wrapper\">\n\t<div class=\"wpb_text_column wpb_content_element  vc_custom_1757510893821 dg-expert--content-header\" >\n\t\t<div class=\"wpb_wrapper\">\n\t\t\t<h3>Would you like to know more about our services?<\/h3>\n<p>Our experts are happy to help.<\/p>\n\n\t\t<\/div>\n\t<\/div>\n\n\t<div class=\"wpb_text_column wpb_content_element  vc_custom_1761214171857 sector_specialist\" >\n\t\t<div class=\"wpb_wrapper\">\n\t\t\t<p><b>Marcel van Est<\/b><br \/>\nSenior sales engineer<\/p>\n\n\t\t<\/div>\n\t<\/div>\n\n\t<div class=\"wpb_raw_code wpb_raw_html wpb_content_element vc_custom_1761214188495\" >\n\t\t<div class=\"wpb_wrapper\">\n\t\t\t<i class=\"far fa-envelope green_icon\"><\/i> <a class=\"custom_link_specialist\" href=\"mailto:vsl@vsl.nl\"> vsl@vsl.nl<\/a>\n\t\t<\/div>\n\t<\/div>\n<\/div><\/div><\/div><\/div><\/div><\/div><\/div><\/div><\/section>\r\n<\/div>[\/vc_column][\/vc_row][vc_row el_class=&#8221;dg-index-fix dg-padding-small-top&#8221;][vc_column width=&#8221;5\/6&#8243; el_class=&#8221;dg-padding-none full_width_responsive&#8221;][vc_column_text]<\/p>\n<p class=\"header_subtext\">Custom services<\/p>\n<h2>Custom mass metrology<\/h2>\n<p>Our in-depth knowledge of measurement and the interpretation of measurement data enables us to provide the following services:<\/p>\n<ul>\n<li style=\"list-style-type: none;\">\n<ul>\n<li>Guidance in setting up and accrediting quality systems<\/li>\n<li>Guidence of the setup of your calibration laboratory, for example calibrating your measurement standards to E0 class<\/li>\n<li>Develop a calibration plan of your measurement standards<\/li>\n<li>Advice for interpretations of various (measurement) standards<\/li>\n<li>Validation of measurement software<\/li>\n<\/ul>\n<\/li>\n<\/ul>\n<p>Every situation is unique. Any questions? Don&#8217;t hesitate to contact us.[\/vc_column_text][\/vc_column][vc_column width=&#8221;1\/6&#8243;][\/vc_column][\/vc_row][vc_row el_class=&#8221;dg-index-fix dg-padding-small-top&#8221;][vc_column width=&#8221;5\/6&#8243; el_class=&#8221;dg-padding-none full_width_responsive&#8221;][vc_column_text]<\/p>\n<p class=\"header_subtext\">Calibration<\/p>\n<h2>Mass calibration services<\/h2>\n<p>Mass measurements play an important role in trade, industry and process control. Analytical laboratories also use mass measurements. VSL calibrates and adjusts weight sets from class M1 to class E1, where we can determine conventional mass, true mass and Newtonian mass. Calibration by VSL provides traceability and the highest accuracy in the Netherlands.[\/vc_column_text][\/vc_column][vc_column width=&#8221;1\/6&#8243;][\/vc_column][\/vc_row][\/vc_section][vc_section full_width=&#8221;stretch_row&#8221; el_class=&#8221;dg-padding-mid&#8221; css=&#8221;.vc_custom_1648640322721{background-color: #fafafa !important;}&#8221;][vc_row][vc_column width=&#8221;1\/6&#8243;][\/vc_column][vc_column width=&#8221;2\/3&#8243; el_class=&#8221;dg-padding-none full_width_responsive&#8221;][vc_column_text]<\/p>\n<h2 style=\"text-align: center;\">Our areas of expertise<\/h2>\n<p>[\/vc_column_text][\/vc_column][vc_column width=&#8221;1\/6&#8243;][\/vc_column][\/vc_row][vc_row el_class=&#8221;dg-padding-small-top&#8221;][vc_column el_class=&#8221;dg-padding-none&#8221;]<div class=\"templatera_shortcode\"><style type=\"text\/css\" data-type=\"vc_shortcodes-custom-css\">.vc_custom_1669633605353{margin-bottom: 10px !important;}.vc_custom_1669633627553{margin-bottom: 10px !important;}.vc_custom_1669633635950{margin-bottom: 10px !important;}.vc_custom_1669633653507{margin-bottom: 10px !important;}.vc_custom_1669633664911{margin-bottom: 10px !important;}.vc_custom_1669633673364{margin-bottom: 10px !important;}.vc_custom_1669633682893{margin-bottom: 10px !important;}.vc_custom_1669633691703{margin-bottom: 10px !important;}.vc_custom_1669633708590{margin-bottom: 10px !important;}.vc_custom_1669633727119{margin-bottom: 10px !important;}.vc_custom_1669633735268{margin-bottom: 10px !important;}.vc_custom_1746716604040{margin-bottom: 10px !important;}<\/style><section class=\"vc_section\"><div class=\"vc_row wpb_row vc_row-fluid dg-index-fix vc_row-o-equal-height vc_row-o-content-top vc_row-flex\"><div class=\"markets_icon wpb_column vc_column_container vc_col-sm-2\"><div class=\"vc_column-inner\"><div class=\"wpb_wrapper\"><div class=\"ult-content-box-container \" >\t<a class=\"ult-content-box-anchor\" href=\"https:\/\/www.vsl.nl\/en\/areas-of-expertise\/electricity\/\" >\t\t<div class=\"ult-content-box\" style=\"box-shadow: px px px px none;-webkit-transition: all 700ms ease;-moz-transition: all 700ms ease;-ms-transition: all 700ms ease;-o-transition: all 700ms ease;transition: all 700ms ease;\"  data-hover_box_shadow=\"none\"    >\n\t<div  class=\"wpb_single_image wpb_content_element vc_align_center  vc_custom_1669633605353  sector_icon\">\n\t\t\n\t\t<figure class=\"wpb_wrapper vc_figure\">\n\t\t\t<div class=\"vc_single_image-wrapper   vc_box_border_grey\"><img decoding=\"async\" width=\"100\" height=\"100\" data-src=\"https:\/\/www.vsl.nl\/wp-content\/uploads\/2022\/11\/Electricity.png\" class=\"vc_single_image-img attachment-thumbnail lazyload\" alt=\"\" title=\"Electricity\"  data-dt-location=\"https:\/\/www.vsl.nl\/en\/electricity\/\" src=\"data:image\/svg+xml;base64,PHN2ZyB3aWR0aD0iMSIgaGVpZ2h0PSIxIiB4bWxucz0iaHR0cDovL3d3dy53My5vcmcvMjAwMC9zdmciPjwvc3ZnPg==\" style=\"--smush-placeholder-width: 100px; --smush-placeholder-aspect-ratio: 100\/100;\" \/><\/div>\n\t\t<\/figure>\n\t<\/div>\n\n\t<div class=\"wpb_text_column wpb_content_element \" >\n\t\t<div class=\"wpb_wrapper\">\n\t\t\t<p style=\"text-align: center;\"><strong>Electricity<\/strong><\/p>\n\n\t\t<\/div>\n\t<\/div>\n\t\t<\/div>\t<\/a><\/div><\/div><\/div><\/div><div class=\"markets_icon wpb_column vc_column_container vc_col-sm-2\"><div class=\"vc_column-inner\"><div class=\"wpb_wrapper\"><div class=\"ult-content-box-container \" >\t<a class=\"ult-content-box-anchor\" href=\"https:\/\/www.vsl.nl\/en\/areas-of-expertise\/geometry\/\" >\t\t<div class=\"ult-content-box\" style=\"box-shadow: px px px px none;-webkit-transition: all 700ms ease;-moz-transition: all 700ms ease;-ms-transition: all 700ms ease;-o-transition: all 700ms ease;transition: all 700ms ease;\"  data-hover_box_shadow=\"none\"    >\n\t<div  class=\"wpb_single_image wpb_content_element vc_align_center  vc_custom_1669633627553  sector_icon\">\n\t\t\n\t\t<figure class=\"wpb_wrapper vc_figure\">\n\t\t\t<div class=\"vc_single_image-wrapper   vc_box_border_grey\"><img decoding=\"async\" width=\"100\" height=\"100\" data-src=\"https:\/\/www.vsl.nl\/wp-content\/uploads\/2022\/11\/Geometry.png\" class=\"vc_single_image-img attachment-full lazyload\" alt=\"\" title=\"Geometry\"  data-dt-location=\"https:\/\/www.vsl.nl\/en\/geometry\/\" src=\"data:image\/svg+xml;base64,PHN2ZyB3aWR0aD0iMSIgaGVpZ2h0PSIxIiB4bWxucz0iaHR0cDovL3d3dy53My5vcmcvMjAwMC9zdmciPjwvc3ZnPg==\" style=\"--smush-placeholder-width: 100px; --smush-placeholder-aspect-ratio: 100\/100;\" \/><\/div>\n\t\t<\/figure>\n\t<\/div>\n\n\t<div class=\"wpb_text_column wpb_content_element \" >\n\t\t<div class=\"wpb_wrapper\">\n\t\t\t<p style=\"text-align: center;\"><b>Geometry<\/b><\/p>\n\n\t\t<\/div>\n\t<\/div>\n\t\t<\/div>\t<\/a><\/div><\/div><\/div><\/div><div class=\"markets_icon wpb_column vc_column_container vc_col-sm-2\"><div class=\"vc_column-inner\"><div class=\"wpb_wrapper\"><div class=\"ult-content-box-container \" >\t<a class=\"ult-content-box-anchor\" href=\"https:\/\/www.vsl.nl\/en\/areas-of-expertise\/pressure\/\" >\t\t<div class=\"ult-content-box\" style=\"box-shadow: px px px px none;-webkit-transition: all 700ms ease;-moz-transition: all 700ms ease;-ms-transition: all 700ms ease;-o-transition: all 700ms ease;transition: all 700ms ease;\"  data-hover_box_shadow=\"none\"    >\n\t<div  class=\"wpb_single_image wpb_content_element vc_align_center  vc_custom_1669633635950  sector_icon\">\n\t\t\n\t\t<figure class=\"wpb_wrapper vc_figure\">\n\t\t\t<div class=\"vc_single_image-wrapper   vc_box_border_grey\"><img decoding=\"async\" width=\"100\" height=\"100\" data-src=\"https:\/\/www.vsl.nl\/wp-content\/uploads\/2022\/11\/Pressure.png\" class=\"vc_single_image-img attachment-full lazyload\" alt=\"\" title=\"Pressure\"  data-dt-location=\"https:\/\/www.vsl.nl\/en\/pressure\/\" src=\"data:image\/svg+xml;base64,PHN2ZyB3aWR0aD0iMSIgaGVpZ2h0PSIxIiB4bWxucz0iaHR0cDovL3d3dy53My5vcmcvMjAwMC9zdmciPjwvc3ZnPg==\" style=\"--smush-placeholder-width: 100px; --smush-placeholder-aspect-ratio: 100\/100;\" \/><\/div>\n\t\t<\/figure>\n\t<\/div>\n\n\t<div class=\"wpb_text_column wpb_content_element \" >\n\t\t<div class=\"wpb_wrapper\">\n\t\t\t<p style=\"text-align: center;\"><strong>Pressure<\/strong><\/p>\n\n\t\t<\/div>\n\t<\/div>\n\t\t<\/div>\t<\/a><\/div><\/div><\/div><\/div><div class=\"markets_icon wpb_column vc_column_container vc_col-sm-2\"><div class=\"vc_column-inner\"><div class=\"wpb_wrapper\"><div class=\"ult-content-box-container \" >\t<a class=\"ult-content-box-anchor\" href=\"https:\/\/www.vsl.nl\/en\/areas-of-expertise\/temperature\/\" >\t\t<div class=\"ult-content-box\" style=\"box-shadow: px px px px none;-webkit-transition: all 700ms ease;-moz-transition: all 700ms ease;-ms-transition: all 700ms ease;-o-transition: all 700ms ease;transition: all 700ms ease;\"  data-hover_box_shadow=\"none\"    >\n\t<div  class=\"wpb_single_image wpb_content_element vc_align_center  vc_custom_1669633653507  sector_icon\">\n\t\t\n\t\t<figure class=\"wpb_wrapper vc_figure\">\n\t\t\t<div class=\"vc_single_image-wrapper   vc_box_border_grey\"><img decoding=\"async\" width=\"100\" height=\"100\" data-src=\"https:\/\/www.vsl.nl\/wp-content\/uploads\/2022\/11\/Temperature.png\" class=\"vc_single_image-img attachment-full lazyload\" alt=\"\" title=\"Temperature\"  data-dt-location=\"https:\/\/www.vsl.nl\/en\/temperature\/\" src=\"data:image\/svg+xml;base64,PHN2ZyB3aWR0aD0iMSIgaGVpZ2h0PSIxIiB4bWxucz0iaHR0cDovL3d3dy53My5vcmcvMjAwMC9zdmciPjwvc3ZnPg==\" style=\"--smush-placeholder-width: 100px; --smush-placeholder-aspect-ratio: 100\/100;\" \/><\/div>\n\t\t<\/figure>\n\t<\/div>\n\n\t<div class=\"wpb_text_column wpb_content_element \" >\n\t\t<div class=\"wpb_wrapper\">\n\t\t\t<p style=\"text-align: center;\"><b>Temperature<\/b><\/p>\n\n\t\t<\/div>\n\t<\/div>\n\t\t<\/div>\t<\/a><\/div><\/div><\/div><\/div><div class=\"markets_icon wpb_column vc_column_container vc_col-sm-2\"><div class=\"vc_column-inner\"><div class=\"wpb_wrapper\"><div class=\"ult-content-box-container \" >\t<a class=\"ult-content-box-anchor\" href=\"https:\/\/www.vsl.nl\/en\/areas-of-expertise\/light\/\" >\t\t<div class=\"ult-content-box\" style=\"box-shadow: px px px px none;-webkit-transition: all 700ms ease;-moz-transition: all 700ms ease;-ms-transition: all 700ms ease;-o-transition: all 700ms ease;transition: all 700ms ease;\"  data-hover_box_shadow=\"none\"    >\n\t<div  class=\"wpb_single_image wpb_content_element vc_align_center  vc_custom_1669633664911  sector_icon\">\n\t\t\n\t\t<figure class=\"wpb_wrapper vc_figure\">\n\t\t\t<div class=\"vc_single_image-wrapper   vc_box_border_grey\"><img decoding=\"async\" width=\"100\" height=\"100\" data-src=\"https:\/\/www.vsl.nl\/wp-content\/uploads\/2022\/11\/Optica.png\" class=\"vc_single_image-img attachment-full lazyload\" alt=\"\" title=\"Optica\"  data-dt-location=\"https:\/\/www.vsl.nl\/en\/optica\/\" src=\"data:image\/svg+xml;base64,PHN2ZyB3aWR0aD0iMSIgaGVpZ2h0PSIxIiB4bWxucz0iaHR0cDovL3d3dy53My5vcmcvMjAwMC9zdmciPjwvc3ZnPg==\" style=\"--smush-placeholder-width: 100px; --smush-placeholder-aspect-ratio: 100\/100;\" \/><\/div>\n\t\t<\/figure>\n\t<\/div>\n\n\t<div class=\"wpb_text_column wpb_content_element \" >\n\t\t<div class=\"wpb_wrapper\">\n\t\t\t<p style=\"text-align: center;\"><strong>Optica<\/strong><\/p>\n\n\t\t<\/div>\n\t<\/div>\n\t\t<\/div>\t<\/a><\/div><\/div><\/div><\/div><div class=\"markets_icon wpb_column vc_column_container vc_col-sm-2\"><div class=\"vc_column-inner\"><div class=\"wpb_wrapper\"><div class=\"ult-content-box-container \" >\t<a class=\"ult-content-box-anchor\" href=\"https:\/\/www.vsl.nl\/en\/areas-of-expertise\/chemistry\/\" >\t\t<div class=\"ult-content-box\" style=\"box-shadow: px px px px none;-webkit-transition: all 700ms ease;-moz-transition: all 700ms ease;-ms-transition: all 700ms ease;-o-transition: all 700ms ease;transition: all 700ms ease;\"  data-hover_box_shadow=\"none\"    >\n\t<div  class=\"wpb_single_image wpb_content_element vc_align_center  vc_custom_1669633673364  sector_icon\">\n\t\t\n\t\t<figure class=\"wpb_wrapper vc_figure\">\n\t\t\t<div class=\"vc_single_image-wrapper   vc_box_border_grey\"><img decoding=\"async\" width=\"100\" height=\"100\" data-src=\"https:\/\/www.vsl.nl\/wp-content\/uploads\/2022\/11\/Chemistry.png\" class=\"vc_single_image-img attachment-full lazyload\" alt=\"\" title=\"Chemistry\"  data-dt-location=\"https:\/\/www.vsl.nl\/en\/chemistry\/\" src=\"data:image\/svg+xml;base64,PHN2ZyB3aWR0aD0iMSIgaGVpZ2h0PSIxIiB4bWxucz0iaHR0cDovL3d3dy53My5vcmcvMjAwMC9zdmciPjwvc3ZnPg==\" style=\"--smush-placeholder-width: 100px; --smush-placeholder-aspect-ratio: 100\/100;\" \/><\/div>\n\t\t<\/figure>\n\t<\/div>\n\n\t<div class=\"wpb_text_column wpb_content_element \" >\n\t\t<div class=\"wpb_wrapper\">\n\t\t\t<p style=\"text-align: center;\"><b>Chemistry<\/b><\/p>\n\n\t\t<\/div>\n\t<\/div>\n\t\t<\/div>\t<\/a><\/div><\/div><\/div><\/div><\/div><div class=\"vc_row wpb_row vc_row-fluid dg-padding-small-top dg-index-fix vc_row-o-equal-height vc_row-o-content-top vc_row-flex\"><div class=\"markets_icon wpb_column vc_column_container vc_col-sm-2\"><div class=\"vc_column-inner\"><div class=\"wpb_wrapper\"><div class=\"ult-content-box-container \" >\t<a class=\"ult-content-box-anchor\" href=\"https:\/\/www.vsl.nl\/en\/areas-of-expertise\/ionising-radiation\/\" >\t\t<div class=\"ult-content-box\" style=\"box-shadow: px px px px none;-webkit-transition: all 700ms ease;-moz-transition: all 700ms ease;-ms-transition: all 700ms ease;-o-transition: all 700ms ease;transition: all 700ms ease;\"  data-hover_box_shadow=\"none\"    >\n\t<div  class=\"wpb_single_image wpb_content_element vc_align_center  vc_custom_1669633682893  sector_icon\">\n\t\t\n\t\t<figure class=\"wpb_wrapper vc_figure\">\n\t\t\t<div class=\"vc_single_image-wrapper   vc_box_border_grey\"><img decoding=\"async\" width=\"100\" height=\"100\" data-src=\"https:\/\/www.vsl.nl\/wp-content\/uploads\/2022\/11\/Radiation.png\" class=\"vc_single_image-img attachment-full lazyload\" alt=\"\" title=\"Radiation\"  data-dt-location=\"https:\/\/www.vsl.nl\/en\/radiation\/\" src=\"data:image\/svg+xml;base64,PHN2ZyB3aWR0aD0iMSIgaGVpZ2h0PSIxIiB4bWxucz0iaHR0cDovL3d3dy53My5vcmcvMjAwMC9zdmciPjwvc3ZnPg==\" style=\"--smush-placeholder-width: 100px; --smush-placeholder-aspect-ratio: 100\/100;\" \/><\/div>\n\t\t<\/figure>\n\t<\/div>\n\n\t<div class=\"wpb_text_column wpb_content_element \" >\n\t\t<div class=\"wpb_wrapper\">\n\t\t\t<p style=\"text-align: center;\"><strong>Ionising <\/strong><br \/>\n<strong>radiation<\/strong><\/p>\n\n\t\t<\/div>\n\t<\/div>\n\t\t<\/div>\t<\/a><\/div><\/div><\/div><\/div><div class=\"markets_icon wpb_column vc_column_container vc_col-sm-2\"><div class=\"vc_column-inner\"><div class=\"wpb_wrapper\"><div class=\"ult-content-box-container \" >\t<a class=\"ult-content-box-anchor\" href=\"https:\/\/www.vsl.nl\/en\/areas-of-expertise\/mass\/\" title=\"Mass\" >\t\t<div class=\"ult-content-box\" style=\"box-shadow: px px px px none;-webkit-transition: all 700ms ease;-moz-transition: all 700ms ease;-ms-transition: all 700ms ease;-o-transition: all 700ms ease;transition: all 700ms ease;\"  data-hover_box_shadow=\"none\"    >\n\t<div  class=\"wpb_single_image wpb_content_element vc_align_center  vc_custom_1669633691703  sector_icon\">\n\t\t\n\t\t<figure class=\"wpb_wrapper vc_figure\">\n\t\t\t<div class=\"vc_single_image-wrapper   vc_box_border_grey\"><img decoding=\"async\" width=\"100\" height=\"100\" data-src=\"https:\/\/www.vsl.nl\/wp-content\/uploads\/2022\/11\/Mass.png\" class=\"vc_single_image-img attachment-full lazyload\" alt=\"\" title=\"Mass\"  data-dt-location=\"https:\/\/www.vsl.nl\/en\/mass\/\" src=\"data:image\/svg+xml;base64,PHN2ZyB3aWR0aD0iMSIgaGVpZ2h0PSIxIiB4bWxucz0iaHR0cDovL3d3dy53My5vcmcvMjAwMC9zdmciPjwvc3ZnPg==\" style=\"--smush-placeholder-width: 100px; --smush-placeholder-aspect-ratio: 100\/100;\" \/><\/div>\n\t\t<\/figure>\n\t<\/div>\n\n\t<div class=\"wpb_text_column wpb_content_element \" >\n\t\t<div class=\"wpb_wrapper\">\n\t\t\t<p style=\"text-align: center;\"><b>Mass<\/b><\/p>\n\n\t\t<\/div>\n\t<\/div>\n\t\t<\/div>\t<\/a><\/div><\/div><\/div><\/div><div class=\"markets_icon wpb_column vc_column_container vc_col-sm-2\"><div class=\"vc_column-inner\"><div class=\"wpb_wrapper\"><div class=\"ult-content-box-container \" >\t<a class=\"ult-content-box-anchor\" href=\"https:\/\/www.vsl.nl\/en\/areas-of-expertise\/flow\/\" title=\"Flow\" >\t\t<div class=\"ult-content-box\" style=\"box-shadow: px px px px none;-webkit-transition: all 700ms ease;-moz-transition: all 700ms ease;-ms-transition: all 700ms ease;-o-transition: all 700ms ease;transition: all 700ms ease;\"  data-hover_box_shadow=\"none\"    >\n\t<div  class=\"wpb_single_image wpb_content_element vc_align_center  vc_custom_1669633708590  sector_icon\">\n\t\t\n\t\t<figure class=\"wpb_wrapper vc_figure\">\n\t\t\t<div class=\"vc_single_image-wrapper   vc_box_border_grey\"><img decoding=\"async\" width=\"100\" height=\"100\" data-src=\"https:\/\/www.vsl.nl\/wp-content\/uploads\/2022\/11\/Flow.png\" class=\"vc_single_image-img attachment-full lazyload\" alt=\"\" title=\"Flow\"  data-dt-location=\"https:\/\/www.vsl.nl\/en\/flow\/\" src=\"data:image\/svg+xml;base64,PHN2ZyB3aWR0aD0iMSIgaGVpZ2h0PSIxIiB4bWxucz0iaHR0cDovL3d3dy53My5vcmcvMjAwMC9zdmciPjwvc3ZnPg==\" style=\"--smush-placeholder-width: 100px; --smush-placeholder-aspect-ratio: 100\/100;\" \/><\/div>\n\t\t<\/figure>\n\t<\/div>\n\n\t<div class=\"wpb_text_column wpb_content_element \" >\n\t\t<div class=\"wpb_wrapper\">\n\t\t\t<p style=\"text-align: center;\"><strong>Flow &amp;<br \/>\nVolume<\/strong><\/p>\n\n\t\t<\/div>\n\t<\/div>\n\t\t<\/div>\t<\/a><\/div><\/div><\/div><\/div><div class=\"markets_icon wpb_column vc_column_container vc_col-sm-2\"><div class=\"vc_column-inner\"><div class=\"wpb_wrapper\"><div class=\"ult-content-box-container \" >\t<a class=\"ult-content-box-anchor\" href=\"https:\/\/www.vsl.nl\/en\/areas-of-expertise\/time-and-frequency\/\" >\t\t<div class=\"ult-content-box\" style=\"box-shadow: px px px px none;-webkit-transition: all 700ms ease;-moz-transition: all 700ms ease;-ms-transition: all 700ms ease;-o-transition: all 700ms ease;transition: all 700ms ease;\"  data-hover_box_shadow=\"none\"    >\n\t<div  class=\"wpb_single_image wpb_content_element vc_align_center  vc_custom_1669633727119  sector_icon\">\n\t\t\n\t\t<figure class=\"wpb_wrapper vc_figure\">\n\t\t\t<div class=\"vc_single_image-wrapper   vc_box_border_grey\"><img decoding=\"async\" width=\"100\" height=\"100\" data-src=\"https:\/\/www.vsl.nl\/wp-content\/uploads\/2022\/11\/Time.png\" class=\"vc_single_image-img attachment-full lazyload\" alt=\"\" title=\"Time\"  data-dt-location=\"https:\/\/www.vsl.nl\/en\/time-2\/\" src=\"data:image\/svg+xml;base64,PHN2ZyB3aWR0aD0iMSIgaGVpZ2h0PSIxIiB4bWxucz0iaHR0cDovL3d3dy53My5vcmcvMjAwMC9zdmciPjwvc3ZnPg==\" style=\"--smush-placeholder-width: 100px; --smush-placeholder-aspect-ratio: 100\/100;\" \/><\/div>\n\t\t<\/figure>\n\t<\/div>\n\n\t<div class=\"wpb_text_column wpb_content_element \" >\n\t\t<div class=\"wpb_wrapper\">\n\t\t\t<p style=\"text-align: center;\"><strong>Time &amp;<br \/>\nFrequency<\/strong><\/p>\n\n\t\t<\/div>\n\t<\/div>\n\t\t<\/div>\t<\/a><\/div><\/div><\/div><\/div><div class=\"markets_icon wpb_column vc_column_container vc_col-sm-2\"><div class=\"vc_column-inner\"><div class=\"wpb_wrapper\"><div class=\"ult-content-box-container \" >\t<a class=\"ult-content-box-anchor\" href=\"https:\/\/www.vsl.nl\/en\/areas-of-expertise\/humidity\/\" >\t\t<div class=\"ult-content-box\" style=\"box-shadow: px px px px none;-webkit-transition: all 700ms ease;-moz-transition: all 700ms ease;-ms-transition: all 700ms ease;-o-transition: all 700ms ease;transition: all 700ms ease;\"  data-hover_box_shadow=\"none\"    >\n\t<div  class=\"wpb_single_image wpb_content_element vc_align_center  vc_custom_1669633735268  sector_icon\">\n\t\t\n\t\t<figure class=\"wpb_wrapper vc_figure\">\n\t\t\t<div class=\"vc_single_image-wrapper   vc_box_border_grey\"><img decoding=\"async\" width=\"100\" height=\"100\" data-src=\"https:\/\/www.vsl.nl\/wp-content\/uploads\/2022\/11\/Humidity.png\" class=\"vc_single_image-img attachment-full lazyload\" alt=\"\" title=\"Humidity\"  data-dt-location=\"https:\/\/www.vsl.nl\/en\/humidity\/\" src=\"data:image\/svg+xml;base64,PHN2ZyB3aWR0aD0iMSIgaGVpZ2h0PSIxIiB4bWxucz0iaHR0cDovL3d3dy53My5vcmcvMjAwMC9zdmciPjwvc3ZnPg==\" style=\"--smush-placeholder-width: 100px; --smush-placeholder-aspect-ratio: 100\/100;\" \/><\/div>\n\t\t<\/figure>\n\t<\/div>\n\n\t<div class=\"wpb_text_column wpb_content_element \" >\n\t\t<div class=\"wpb_wrapper\">\n\t\t\t<p style=\"text-align: center;\"><b>Humidity<\/b><\/p>\n\n\t\t<\/div>\n\t<\/div>\n\t\t<\/div>\t<\/a><\/div><\/div><\/div><\/div><div class=\"markets_icon wpb_column vc_column_container vc_col-sm-2\"><div class=\"vc_column-inner\"><div class=\"wpb_wrapper\"><div class=\"ult-content-box-container \" >\t<a class=\"ult-content-box-anchor\" href=\"https:\/\/www.vsl.nl\/en\/services\/data-science\/\" >\t\t<div class=\"ult-content-box\" style=\"box-shadow: px px px px none;-webkit-transition: all 700ms ease;-moz-transition: all 700ms ease;-ms-transition: all 700ms ease;-o-transition: all 700ms ease;transition: all 700ms ease;\"  data-hover_box_shadow=\"none\"    >\n\t<div  class=\"wpb_single_image wpb_content_element vc_align_center  vc_custom_1746716604040  sector_icon\">\n\t\t\n\t\t<figure class=\"wpb_wrapper vc_figure\">\n\t\t\t<div class=\"vc_single_image-wrapper   vc_box_border_grey\"><img decoding=\"async\" width=\"1511\" height=\"1607\" data-src=\"https:\/\/www.vsl.nl\/wp-content\/uploads\/2022\/11\/datascience-diensten-HR.png\" class=\"vc_single_image-img attachment-full lazyload\" alt=\"\" title=\"datascience diensten HR\" data-srcset=\"https:\/\/www.vsl.nl\/wp-content\/uploads\/2022\/11\/datascience-diensten-HR.png 1511w, https:\/\/www.vsl.nl\/wp-content\/uploads\/2022\/11\/datascience-diensten-HR-282x300.png 282w, https:\/\/www.vsl.nl\/wp-content\/uploads\/2022\/11\/datascience-diensten-HR-963x1024.png 963w, https:\/\/www.vsl.nl\/wp-content\/uploads\/2022\/11\/datascience-diensten-HR-768x817.png 768w, https:\/\/www.vsl.nl\/wp-content\/uploads\/2022\/11\/datascience-diensten-HR-1444x1536.png 1444w\" data-sizes=\"(max-width: 1511px) 100vw, 1511px\"  data-dt-location=\"https:\/\/www.vsl.nl\/en\/?attachment_id=23302\" src=\"data:image\/svg+xml;base64,PHN2ZyB3aWR0aD0iMSIgaGVpZ2h0PSIxIiB4bWxucz0iaHR0cDovL3d3dy53My5vcmcvMjAwMC9zdmciPjwvc3ZnPg==\" style=\"--smush-placeholder-width: 1511px; 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Accurate measurements of mass are important for safety, health and cost reasons.<\/p>\n","protected":false},"author":2,"featured_media":0,"parent":2912,"menu_order":0,"comment_status":"closed","ping_status":"closed","template":"","meta":{"_acf_changed":false,"inline_featured_image":false,"footnotes":"","_links_to":"","_links_to_target":""},"categories":[],"tags":[],"class_list":["post-2854","page","type-page","status-publish","hentry","description-off"],"acf":[],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v27.2 - https:\/\/yoast.com\/product\/yoast-seo-wordpress\/ -->\n<title>VSL | Metrology for mass<\/title>\n<meta name=\"description\" content=\"High-quality metrology services around mass. 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