{"id":23476,"date":"2025-05-19T13:13:56","date_gmt":"2025-05-19T11:13:56","guid":{"rendered":"https:\/\/www.vsl.nl\/?p=23476"},"modified":"2025-08-29T10:21:18","modified_gmt":"2025-08-29T08:21:18","slug":"the-150-anniversary-of-the-meter-convention","status":"publish","type":"post","link":"https:\/\/www.vsl.nl\/en\/news\/the-150-anniversary-of-the-meter-convention\/","title":{"rendered":"the 150 Anniversary of the Metre Convention"},"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_1747652547478{background-image: url(https:\/\/www.vsl.nl\/wp-content\/uploads\/2025\/05\/WMD_2025_header.jpg?id=23482) !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;5\/6&#8243; el_class=&#8221;dg-padding-none full_width_responsive&#8221;][vc_column_text css=&#8221;.vc_custom_1756455675874{margin-bottom: 0px !important;padding-bottom: 0px !important;}&#8221; el_class=&#8221;text-white&#8221;]<ins class=\"dg-post--date\" datetime=\"2025-08-29T07:23:56+00:00\">Published on May 19th 2025<\/ins><\/p>\n<h1><strong>Celebrating a Metrology Milestone: the 150 Anniversary of the Metre Convention<\/strong><\/h1>\n<p>[\/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&#8221;][vc_row equal_height=&#8221;yes&#8221; content_placement=&#8221;top&#8221;][vc_column el_class=&#8221;full_width_responsive dg-padding-none&#8221;][vc_column_text css=&#8221;&#8221;]<\/p>\n<p class=\"header_subtext\">News<\/p>\n<p>[\/vc_column_text][\/vc_column][\/vc_row][vc_row equal_height=&#8221;yes&#8221; content_placement=&#8221;top&#8221;][vc_column el_class=&#8221;full_width_responsive dg-padding-none&#8221;][vc_column_text css=&#8221;&#8221;]Every year on 20 May, <a href=\"https:\/\/www.vsl.nl\/en\/about-vsl\/\">VSL <\/a>celebrates World Metrology Day, the signing of the Metre Convention. This international agreement marks the beginning of international standardisation in measurement and metrology. This year this celebration is extra special: the 20th anniversary of World Metrology Day and the 150th anniversary of the Meter Convention. [\/vc_column_text][vc_column_text css=&#8221;&#8221;]Metrology \u2013 the art and science of measurement \u2013 is the silent force behind almost everything that keeps our society running smoothly and fairly. From weighing the ingredients for your dinner to the safe landing of a plane, reliable measurements ensure that we can trust what we buy, use and experience. Without unambiguous measures, trade would become more difficult, innovation stagnant and our lives a lot more unsafe.[\/vc_column_text][vc_column_text css=&#8221;&#8221;]<span style=\"font-weight: 400;\">The meter, kilo and ampere feel so obvious these days that we rarely stop to think how dependent our society is on metrology. From climate research to food safety and from medical devices to the reliability of our energy supply, metrology is the foundation of trust and progress. On World Metrology Day, we celebrate not only the precision of measurement itself, but more importantly, the security it gives us all! <\/span>[\/vc_column_text][vc_column_text css=&#8221;&#8221;]<span style=\"font-weight: 400;\">To look back at 150 years of Metre Convention, we have developed this timeline listing the biggest highlights from the history of metrology!<\/span>[\/vc_column_text][\/vc_column][\/vc_row][vc_row][vc_column][vc_single_image image=&#8221;23474&#8243; img_size=&#8221;full&#8221; css=&#8221;&#8221;][\/vc_column][\/vc_row][vc_row equal_height=&#8221;yes&#8221; content_placement=&#8221;top&#8221;][vc_column el_class=&#8221;full_width_responsive dg-padding-none&#8221;][vc_column_text css=&#8221;&#8221;]<a href=\"https:\/\/www.vsl.nl\/wp-content\/uploads\/2025\/05\/VSL_History_Infographic_EN_120525_def-pdf.pdf\">Click here to open the timeline as a pdf.<\/a>[\/vc_column_text][\/vc_column][\/vc_row][\/vc_section]<\/p>\n<\/div>","protected":false},"excerpt":{"rendered":"<p>Celebrating a Metrology Milestone: the 150 Anniversary of the Metre Convention<\/p>\n","protected":false},"author":3,"featured_media":23482,"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":[82,81,79,87,44],"tags":[],"class_list":["post-23476","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-digitalisation","category-energy-and-climate","category-health-and-environment","category-industry-en","category-news","category-82","category-81","category-79","category-87","category-44","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 | the 150 Anniversary of the Metre Convention<\/title>\n<meta name=\"description\" content=\"20 May World Metrology Day. 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