| 国家 | 国家（英文） | 机构 | 缩写 |
| 阿尔巴尼亚 | Albania | General Directorate of Metrology | DPM |
| 奥地利 | Austria | Bundesamt für Eich- und Vermessungswesen | BEV |
| 比利时 | Belgium | FPS Economy, DG Quality and Safety, Metrology Division | SMD |
| 波黑 | Bosnia and Herzegovina | Institute of Metrology of Bosnia and Herzegovina | IMBiH |
| 保加利亚 | Bulgaria | Bulgarian Institute of Metrology | BIM |
| 克罗地亚 | Croatia | State Office for Metrology | DZM |
| 塞浦路斯 | Cyprus | Weights and Measures Service / Ministry of Commerce, Industry and Tourism / Cyprus | MCIT |
| 捷克共和国 | Czech Republic | Czech Metrology Institute | CMI |
| 丹麦 | Denmark | Danish Fundamental Metrology | DFM |
| 爱沙尼亚 | Estonia | AS Metrosert | Metrosert |
| 芬兰 | Finland | VTT Technical Research Centre of Finland Ltd, Centre for Metrology MIKES | MIKES |
| 法国 | France | Laboratoire national de métrologie et d'essais | LNE |
| 德国 | Germany | Physikalisch-Technische Bundesanstalt | PTB |
| 希腊 | Greece | Hellenic Institute of Metrology | EIM |
| 匈牙利 | Hungary | Government Office of the Capital City Budapest | BFKH |
| 冰岛 | Iceland | Neytendastofa | NEST |
| 爱尔兰 | Ireland | NSAI National Metrology Laboratory | NSAI NML |
| 意大利 | Italy | Istituto Nazionale di Ricerca Metrologica | INRIM |
| 拉脱维亚 | Latvia | LNMC Metrology Bureau | LATMB |
| 立陶宛 | Lithuania | Centre for Physical Sciences and Technology: Metrology Department | FTMC |
| 卢森堡 | Luxembourg | Bureau luxembourgeois de métrologie | ILNAS |
| 马耳他 | Malta | Malta Competition and Consumer Affairs Authority - Standards and Metrology Institute | MCCAA-SMI |
| 摩尔多瓦 | Moldova | National Metrology Institute of the Republic of Moldova | INM-MD |
| 黑山 | Montenegro | Montenegrin Bureau of Metrology | MBM |
| 荷兰 | Netherlands | VSL | VSL |
| 北马其顿 | North Macedonia | Bureau of Metrology | BoM |
| 挪威 | Norway | Justervesenet - Norwegian Metrology Service | JV |
| 波兰 | Poland | Central Office of Measures/Glówny Urzad Miar | GUM |
| 葡萄牙 | Portugal | Instituto Português da Qualidade | IPQ |
| 罗马尼亚 | Romania | National Institute of Metrology | INM-RO |
| 塞尔维亚 | Serbia | Directorate of Measures and Precious Metals | DMDM |
| 斯洛伐克 | Slovakia | Slovak Institute of Metrology | SMU |
| 斯洛文尼亚 | Slovenia | Ministry of Economic Development and Technology - Metrology Institute of the Republic of Slovenia | MIRS |
| 西班牙 | Spain | Centro Español de Metrología | CEM |
| 瑞典 | Sweden | RISE Research Institutes of Sweden AB | RISE |
| 瑞士 | Switzerland | Federal Institute of Metrology METAS | METAS |
| 土耳其 | Turkey | Ulusal Metroloji Enstitüsü | UME |
| 英国 | United Kingdom | National Physical Laboratory | NPL |
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