{"id":3107,"date":"2022-12-22T17:01:24","date_gmt":"2022-12-22T15:01:24","guid":{"rendered":"https:\/\/www.vsl.nl\/uncategorized\/design-of-gravimetric-primary-standards-for-field-testing-of-hydrogen-refuelling-stations\/"},"modified":"2025-09-10T17:14:44","modified_gmt":"2025-09-10T15:14:44","slug":"design-of-gravimetric-primary-standards-for-field-testing-of-hydrogen-refuelling-stations","status":"publish","type":"post","link":"https:\/\/www.vsl.nl\/en\/publications\/design-of-gravimetric-primary-standards-for-field-testing-of-hydrogen-refuelling-stations\/","title":{"rendered":"Design of gravimetric primary standards for field-testing of hydrogen refuelling stations"},"content":{"rendered":"

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Design of gravimetric primary standards for field-testing of hydrogen refuelling stations<\/h1>\n

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Publication<\/p>\n

Design of gravimetric primary standards for field-testing of hydrogen refuelling stations<\/h2>\n

Abstract<\/strong>
\nThe Federal Institute of Metrology METAS developed a Hydrogen Field Test Standard (HFTS) that can be used for field verification and calibration of hydrogen refuelling stations. The testing method is based on the gravimetric principle. The experimental design of the HFTS as well as the description of the method are presented here. The HFTS has been tested at METAS with nitrogen gas at \u221240 \u00b0C to mimic a refuelling process in the field. Laboratory tests have shown that icing on the pipes of the HFTS have a non-negligible impact on the results. ield-testing with the HFTS has also been performed at the Empa hydrogen refuelling station with hydrogen at up to 70 MPa. The major uncertainty components have been identified and assigned values. The required expanded uncertainty of 0.3% could be achieved. A detailed uncertainty budget has been presented and shows that the scale is the largest contributor; buoyancy corrections only play a minor role. For the lowest uncertainty measurements, appropriate waiting times or cleaning methods to get rid of icing are required.<\/em>[\/vc_column_text][vc_column_text]Published in:<\/strong> Flow Measurement and Instrumentation, Volume 73, June 2020, 101747[\/vc_column_text][vc_column_text]Read the full article here<\/a>.[\/vc_column_text][\/vc_column][vc_column width=”1\/3″ css=”.vc_custom_1757517271064{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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\n\t\t\t<\/i> 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=”stretch_row” el_class=”dg-padding-mid-bottom”][vc_row css=”.vc_custom_1641224545247{margin-bottom: 0px !important;padding-bottom: 0px !important;}”][vc_column width=”2\/3″ el_class=”dg-padding-none full_width_responsive”][vc_column_text css=”.vc_custom_1671719582543{margin-bottom: 0px !important;padding-bottom: 0px !important;}”]<\/p>\n

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The Federal Institute of Metrology METAS developed a Hydrogen Field Test Standard (HFTS) that can be used for field verification and calibration of hydrogen refuelling stations.<\/p>\n","protected":false},"author":2,"featured_media":965,"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":[81,58],"tags":[],"class_list":["post-3107","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-energy-and-climate","category-publications","category-81","category-58","description-off"],"acf":[],"yoast_head":"\nDesign of gravimetric primary standards for field-testing of hydrogen refuelling stations - 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\/publications\/design-of-gravimetric-primary-standards-for-field-testing-of-hydrogen-refuelling-stations\/\" \/>\n<meta property=\"og:locale\" content=\"en_US\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Design of gravimetric primary standards for field-testing of hydrogen refuelling stations - 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