{"id":5252,"date":"2023-07-05T16:58:54","date_gmt":"2023-07-05T14:58:54","guid":{"rendered":"https:\/\/www.vsl.nl\/?p=5252"},"modified":"2025-09-10T17:00:02","modified_gmt":"2025-09-10T15:00:02","slug":"metrology-for-traceable-protocols-for-elemental-and-oxidised-mercury-concentrations-19nrm03-si-hg","status":"publish","type":"post","link":"https:\/\/www.vsl.nl\/en\/projects\/metrology-for-traceable-protocols-for-elemental-and-oxidised-mercury-concentrations-19nrm03-si-hg\/","title":{"rendered":"Metrology for traceable protocols for elemental and oxidised mercury concentrations (19NRM03 SI-Hg)"},"content":{"rendered":"

[vc_section full_width=”stretch_row” content_placement=”middle” css=”.vc_custom_1682496457907{background-image: url(https:\/\/www.vsl.nl\/wp-content\/uploads\/2023\/04\/shutterstock_63559273-scaled.jpg?id=5188) !important;background-position: center !important;background-repeat: no-repeat !important;background-size: cover !important;}” el_class=”main_header gradient_header dg-position-realtive”][vc_row equal_height=”yes” content_placement=”middle” el_class=”dg-header–small”][vc_column width=”5\/6″ el_class=”dg-padding-none”][vc_column_text css=”.vc_custom_1682499458313{margin-bottom: 0px !important;padding-bottom: 0px !important;}” el_class=”text-white”]<\/p>\n

Metrology for traceable protocols for elemental and oxidised mercury concentrations (19NRM03 SI-Hg)<\/h1>\n

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Projects<\/p>\n

Metrology for traceable protocols for elemental and oxidised mercury concentrations (19NRM03 SI-Hg)<\/h2>\n

Mercury poses one of the greatest current direct threats to human, animal and environmental health across the globe. Robust, defensible and traceable measurements of mercury concentrations are essential to a) underpin global efforts to control and reduce the concentration of mercury in the environment, b) meet the obligations of legislation and c) protect human health. Currently, mercury gas generators used in the field are not certified against primary standards and therefore lack metrological traceability. The aim of this project is to develop metrological traceable protocols for the certification of mercury gas generators used in the field. In this way, the project will achieve significant improvements in the comparability and uncertainty of mercury measurement results. The project will develop and validate certification protocols, traceable to SI units, for the most important mercury species in gas emission sources and in the atmosphere, thereby supporting the standardisation activities of the European Committee for Standardization (CEN).[\/vc_column_text][vc_column_text el_class=”full_width_responsive dg-padding-none”]<\/p>\n

Our role<\/h2>\n

A primary mercury gas standard was developed at VSL to establish an SI-traceable reference point for mercury concentrations at emission and background levels in the atmosphere. The primary gas standard has been developed as a mercury gas generator to establish metrological traceability of mercury concentration measurement results, based upon a gravimetric approach, for ambient air levels as well as higher concentrations.
\nIn the SI-Hg project VSL will develop a metrologically sound certification protocol for elemental mercury gas generators. The protocol will be validated using the primary mercury gas standard and commercially available gas generators.
\nVSL is coordinating the SI-Hg project.[\/vc_column_text][vc_column_text el_class=”full_width_responsive dg-padding-none”]Start date:<\/strong> October 1, 2020
\nEnd date:<\/strong> September 30, 2023[\/vc_column_text][vc_column_text el_class=”full_width_responsive dg-padding-none”]Read more about this project here<\/a>.[\/vc_column_text][vc_column_text el_class=”full_width_responsive dg-padding-none”]“The project has received funding from the European Partnership on Metrology, co-financed by European Union Horizon Europe Research and Innovation Programme and from the Participating States.\u201d<\/em>[\/vc_column_text][\/vc_column][vc_column width=”1\/3″ css=”.vc_custom_1757516389543{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;}” el_class=”tablet_expert full_width_responsive”]

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Would you like to know more about our services?<\/h3>\n

Our experts are happy to help.<\/p>\n\n\t\t<\/div>\n\t<\/div>\n\n\t

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Iris de Krom<\/b>
\nPrinciple Scientist Chemistry<\/p>\n\n\t\t<\/div>\n\t<\/div>\n\n\t

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\n\t\t\t<\/i> idekrom@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=”stretch_row” el_class=”dg-padding-mid” css=”.vc_custom_1669644694568{background-color: #fafafa !important;}”][vc_row css=”.vc_custom_1641224545247{margin-bottom: 0px !important;padding-bottom: 0px !important;}”][vc_column width=”2\/3″ el_class=”dg-padding-none”][vc_column_text css=”.vc_custom_1672324944721{margin-bottom: 0px !important;padding-bottom: 0px !important;}”]<\/p>\n

Projects<\/p>\n

Our expertise in practice<\/h3>\n

Read more about our projects.[\/vc_column_text][\/vc_column][vc_column width=”1\/3″][\/vc_column][\/vc_row][vc_row el_class=”dg-padding-small-top”][vc_column el_class=”dg-padding-none”][vc_basic_grid post_type=”post” max_items=”10″ element_width=”3″ item=”256″ grid_id=”vc_gid:1757516383292-afcf92a4-4c1b-2″ taxonomies=”9″][\/vc_column][\/vc_row][\/vc_section]<\/p>\n<\/div>","protected":false},"excerpt":{"rendered":"

Creating a metrological framework to support growing demands for \u2018green\u2019 hydrogen as part of the EU\u2019s climate strategy.<\/p>\n","protected":false},"author":3,"featured_media":5189,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"inline_featured_image":false,"footnotes":"","_links_to":"","_links_to_target":""},"categories":[79,51],"tags":[],"class_list":["post-5252","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-health-and-environment","category-projects","category-79","category-51","description-off"],"acf":[],"yoast_head":"\nMetrology for traceable protocols for elemental and oxidised mercury concentrations (19NRM03 SI-Hg) - VSL<\/title>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/www.vsl.nl\/en\/projects\/metrology-for-traceable-protocols-for-elemental-and-oxidised-mercury-concentrations-19nrm03-si-hg\/\" \/>\n<meta property=\"og:locale\" content=\"en_US\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Metrology for traceable protocols for elemental and oxidised mercury concentrations (19NRM03 SI-Hg) - 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