{"id":29240,"date":"2026-03-17T12:54:40","date_gmt":"2026-03-17T10:54:40","guid":{"rendered":"https:\/\/www.vsl.nl\/?page_id=29240"},"modified":"2026-03-17T12:56:08","modified_gmt":"2026-03-17T10:56:08","slug":"vacuum","status":"publish","type":"page","link":"https:\/\/www.vsl.nl\/en\/areas-of-expertise\/pressure\/vacuum\/","title":{"rendered":"Vacuum"},"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_1773744182468{background-image: url(https:\/\/www.vsl.nl\/wp-content\/uploads\/2026\/01\/VSL_labs-17-scaled.jpg?id=28632) !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_1773743800536{margin-bottom: 0px !important;padding-bottom: 0px !important;}&#8221; el_class=&#8221;text-white&#8221;]<\/p>\n<h1>Vacuum<\/h1>\n<p><span style=\"font-weight: 400;\">VSL offers unique services including calibration and consultancy for vacuum sensors and vacuum systems.<\/span>[\/vc_column_text][\/vc_column][vc_column width=&#8221;1\/3&#8243;][\/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_1773743877339{padding-right: 10% !important;}&#8221;]<\/p>\n<p class=\"header_subtext\">Pressure<\/p>\n<h2>Vacuum<\/h2>\n<p><span style=\"font-weight: 400;\">etrology in a vacuum is the science of measuring practically nothing. In an almost gas-free system, signals are extremely small and distinguishing between signal and noise is a major challenge. Only with accurate, traceable measurements can you be confident how \u201cempty\u201d a vacuum really is. <\/span><\/p>\n<p>&nbsp;<\/p>\n<p><span style=\"font-weight: 400;\">VSL offers unique services including calibration and consultancy for vacuum sensors and vacuum systems.<\/span>[\/vc_column_text][\/vc_column][vc_column width=&#8221;1\/3&#8243; css=&#8221;.vc_custom_1757064515093{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_1757064744694  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\/01\/michel-brakel.jpg\" class=\"vc_single_image-img attachment-full lazyload\" alt=\"\" title=\"michel-brakel\" data-srcset=\"https:\/\/www.vsl.nl\/wp-content\/uploads\/2025\/01\/michel-brakel.jpg 500w, https:\/\/www.vsl.nl\/wp-content\/uploads\/2025\/01\/michel-brakel-300x200.jpg 300w\" data-sizes=\"(max-width: 500px) 100vw, 500px\"  data-dt-location=\"https:\/\/www.vsl.nl\/en\/michel-brakel-2\/\" 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_1757064724822 sector_specialist\" >\n\t\t<div class=\"wpb_wrapper\">\n\t\t\t<p><b>Michel Brakel<\/b><br \/>\nSales 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_1757064465566\" >\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><\/div>[\/vc_column][\/vc_row][\/vc_section][vc_section full_width=&#8221;stretch_row&#8221; el_class=&#8221;dg-padding-mid brand_element_small&#8221; css=&#8221;.vc_custom_1669120756183{background-color: #fafafa !important;}&#8221;][vc_row][vc_column width=&#8221;5\/6&#8243; el_class=&#8221;dg-padding-none full_width_responsive&#8221;][vc_column_text css=&#8221;.vc_custom_1773744251882{margin-bottom: 0px !important;}&#8221; el_class=&#8221;dg-padding-small&#8221;]<\/p>\n<h2>Practical Applications of Metrology for Vacuum Systems<\/h2>\n<p><span style=\"font-weight: 400;\">Accurate vacuum measurements are essential across many sectors. In the semiconductor industry, for example, they underpin the clean, tightly controlled lithography processes. In healthcare and the pharmaceutical industry, vacuum environments are used in the production of titanium implants and in research into new treatment methods. In the space sector, precise vacuum measurements are vital for testing and qualifying a wide range of components and systems. And in the energy sector, vacuum applications play a key role in plasma generation and thin-film electronics. <\/span>[\/vc_column_text][\/vc_column][vc_column width=&#8221;1\/6&#8243;][\/vc_column][\/vc_row][\/vc_section][vc_section el_class=&#8221;dg-padding-mid brand_element_small&#8221;][vc_row][vc_column width=&#8221;5\/6&#8243; el_class=&#8221;dg-padding-none full_width_responsive&#8221;][vc_column_text css=&#8221;&#8221; el_class=&#8221;dg-padding-small&#8221;]<\/p>\n<h2>Calibration of Vacuum Sensors<\/h2>\n<p>In the Netherlands, VSL provides the most accurate and traceable vacuum calibrations across a very wide pressure range, from high vacuum up to near atmospheric pressure including an expanded accreditation <a href=\"https:\/\/www.vsl.nl\/en\/news\/vsl-expands-scope-k999-with-vacuum-calibrations\/\">for ranges down to 10<span style=\"font-weight: 400;\"><span style=\"font-weight: 400;\"><sup>&#8211;<\/sup><\/span><\/span><span style=\"font-weight: 400;\"><span style=\"font-weight: 400;\"><sup>8<\/sup><\/span><\/span>mbar <\/a><span style=\"font-weight: 400;\"> (absolute pressure). Only a handful of national metrology institutes in the world can perform vacuum calibrations. VSL is the only accredited organisation in the Netherlands able to calibrate at such low pressures. <\/span><\/p>\n<p><span style=\"font-weight: 400;\">Within this wide pressure range, virtually all common types of vacuum sensors can be calibrated, including ion gauges, capacitive diaphragm gauges (CDGs), spinning rotor gauges, piezo gauges, Pirani gauges, cold and hot cathode gauges, Bayard\u2013Alpert gauges and extractor gauges. All calibrations are carried out using SI-traceable references and include a transparent uncertainty analysis. The results provide solid support for quality and accreditation systems. <\/span>[\/vc_column_text][vc_column_text css=&#8221;&#8221;]<\/p>\n<h2>Traceability With Short Lead Times<\/h2>\n<p><span style=\"font-weight: 400;\">Vacuum calibrations are fully traceable to international standards. We apply clearly defined and well-substantiated measurement uncertainties. At the same time, we offer efficient, predictable turnaround times that align with both industrial and research processes. <\/span>[\/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 brand_element_small&#8221; css=&#8221;.vc_custom_1669120756183{background-color: #fafafa !important;}&#8221;][vc_row][vc_column width=&#8221;5\/6&#8243; el_class=&#8221;dg-padding-none full_width_responsive&#8221;][vc_column_text css=&#8221;.vc_custom_1773744278369{margin-bottom: 0px !important;}&#8221; el_class=&#8221;dg-padding-small&#8221;]<\/p>\n<h2>Consultancy<\/h2>\n<p><span style=\"font-weight: 400;\">Accurately measuring, controlling and interpreting vacuum is a specialist discipline. VSL supports organisations in selecting and combining suitable vacuum sensors for a given pressure range, in designing and assessing vacuum systems and measurement setups, and in drafting and optimising measurement and calibration procedures. We also assist in preparing uncertainty budgets and substantiating them for auditors and customers, and in training and coaching technicians and engineers in metrology for vacuum environments.<br \/>\nWorking closely with metrologists and scientists, VSL translates complex metrology into practical solutions for laboratories and production environments.<br \/>\n<\/span>[\/vc_column_text][\/vc_column][vc_column width=&#8221;1\/6&#8243;][\/vc_column][\/vc_row][\/vc_section][vc_section el_class=&#8221;dg-padding-mid brand_element_small&#8221;][vc_row][vc_column width=&#8221;5\/6&#8243; el_class=&#8221;dg-padding-none full_width_responsive&#8221;][vc_column_text css=&#8221;&#8221; el_class=&#8221;dg-padding-small&#8221;]<\/p>\n<h2>Custom services<\/h2>\n<p><span style=\"font-weight: 400;\">Alongside our standard calibrations, VSL offers tailored solutions for specific challenges in vacuum metrology. These include the development of special measurement setups or reference artefacts, support in integrating vacuum calibration into production or R&amp;D lines, feasibility studies and pilot measurements for new applications or pressure ranges, and tailored proficiency tests (interlaboratory comparisons).<br \/>\nOur combination of advanced facilities, accredited standards and deep expertise in our field makes VSL the partner of choice for organisations whose processes depend on reliable vacuum conditions.<br \/>\n<\/span>[\/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_1746716719278{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\/vakgebieden\/elektriciteit\/\" title=\"Elektriciteit\" >\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>Elektriciteit<\/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\/vakgebieden\/geometrie\/\" title=\"Geometrie\" >\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>Geometrie<\/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\/vakgebieden\/druk\/\" title=\"Druk\" >\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>Druk<\/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\/vakgebieden\/temperatuur\/\" title=\"Temperatuur\" >\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>Temperatuur<\/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\/vakgebieden\/optica\/\" title=\"Licht\" >\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\/vakgebieden\/chemie\/\" title=\"Chemie\" >\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>Chemie<\/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\/vakgebieden\/ioniserende-straling\/\" title=\"Ioniserende straling\" >\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>Ioniserende<\/strong><br \/>\n<strong>straling<\/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\/vakgebieden\/massa\/\" title=\"Massa\" >\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>Massa<\/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\/vakgebieden\/stroming\/\" title=\"Stroming\" >\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>Stroming<\/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\/vakgebieden\/tijd-frequentie\/\" title=\"Tijd &amp; Frequentie\" >\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>Tijd &amp;<br \/>\nfrequentie<\/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\/vakgebieden\/vocht\/\" title=\"Vocht\" >\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>Vocht<\/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\/diensten\/datawetenschap\/\" >\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_1746716719278  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; --smush-placeholder-aspect-ratio: 1511\/1607;\" \/><\/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>Datawetenschap<\/b><\/p>\n\n\t\t<\/div>\n\t<\/div>\n\t\t<\/div>\t<\/a><\/div><\/div><\/div><\/div><\/div><\/section><\/div>[\/vc_column][\/vc_row][\/vc_section]<\/p>\n<\/div>","protected":false},"excerpt":{"rendered":"<p>Vacuum VSL offers unique services including calibration and consultancy for vacuum sensors and vacuum systems. Pressure Vacuum etrology in a vacuum is the science of measuring practically nothing. In an almost gas-free system, signals are extremely small and distinguishing between signal and noise is a major challenge. Only with accurate, traceable measurements can you be&hellip;<\/p>\n","protected":false},"author":4,"featured_media":28632,"parent":2848,"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-29240","page","type-page","status-publish","has-post-thumbnail","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 | Metrologie for Vacuum<\/title>\n<meta name=\"description\" content=\"High-quality metrology services for vacuum. 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