| 國 家 | 機 構 簡 稱 | 機 構 名 稱 |
| 阿根廷 | INTI | Instituto Nacional de Tecnologia Industrial |
| (Argentina) | | |
| 澳洲 | CSIRO | 澳洲國家科學與工業技術院 The Commonwealth Scientific and Industrial Research Organization |
| (Australia) | | |
| 奧地利 | BEV | Bundesamt fur Eich-und Vermessungswesen |
| (Austria) | | |
| 比利時 | | Ministry of Economic Affairs |
| (Beligume) | | |
| 巴西 | INMETRO | Instituto Nacional de Metrologia, Normalizacao e Qualidade Industrial |
| (Brazil) | | |
| 保加利亞 | NCM | State Agency for Metrology and Technical Surveillance |
| (Bulgaria) | | |
| 加拿大 | NRC | 加拿大國家研究院 National Research Council Canada |
| (Canada) | | |
| 智利 | INN | Instituo Nacional de Normalizacion |
| (Chile) | | |
| 中國 | NIM | 中國計量科學研究院 National Institute of Metrology |
| (China) | | |
| 哥倫比亞 | SIC | Superintendencia de Industria y Comercio |
| (Colombia) | | |
| 哥斯大黎加 | ONNUM | Ministerio de Industria y Commercio |
| (Costa Rica) | | |
| 捷克 | CMI | Czech Metrological Institute |
| (Czech Republic) | | |
| 丹麥 | DFM | Danish Institute of Fundamental Metrology |
| (Denmark) | | |
| 厄瓜多爾 | INEN | Instituto Ecuatoriano de Normalizacion |
| (Ecuador) | | |
| 埃及 | NIS | National Institute for Standards |
| (Egypt) | | |
| 薩爾瓦多 | CONACYT | Consejo Nacional de Ciencia y Technologiz |
| (El Salvador) | | |
| 芬蘭(Finland) | MIKES | Center for Metrology and Accreditation |
| | FGI | Finnish Geodetic Institute |
| | FMI | Finnish Metrological Institute |
| 法國(France) | BNM | 法國國家計量局 Bureau National de Metrologie |
| | BNM-SYRTE | The Laboratoire Primaire du Temps et des Frequences |
| | LCIE | Laboratoire Central des Industries Electriques |
| 德國(Germany) | PTB | 德國聯邦物理技術研究所 Physikalisch-Technische Bundesanstalt |
| BAM | Federal Institute for Materials Research and Testing |
| 迦納(Ghana) | | Ghana Standards Board |
| 格瑞那達(Grenada) | | Grenada Bureau of Standards |
| 希臘(Greece) | EIN | Hellenic Institute of Metrology |
| 瓜地馬拉(Guatemala) | | Comision Guatemalteca de Normas |
| 圭亞那(Guyana) | | Guyana Bureau of Standards |
| 海地(Haiti) | | Ministry of Commerce and Industry |
| 宏都拉斯(Honduras) | | Departamento de Ingenieria Quimica Universidad |
| 匈牙利(Hungary) | OMH | National Office of Measures |
| 冰島(Iceland) | | Icelandic Metrology and Accreditation Service |
| 印度(India) | NPL | National Physics Laboratory |
| 印尼(Indonesia) | KIM-LIPI | Research and Development Center for Calibration, Instrumentation and Metrology |
| 愛爾蘭(Ireland) | NML | National Metrology Lab |
| | National Standards Authority of Ireland |
| 以色列(Israel) | | National Physical Laboratory |
| 義大利(Italy) | IEN | Istiuto Elettrotechnco Nazionale Galileo Ferraris |
| IMGC | Istituto di Merologia "G. Collonnetti |
| ENEA | IstituoNazionale di Metrologia delle RADiaziono Ionizzanti Rroma |
| | Consiglio Nazioale dele Ricerche |
| 牙買加(Jamaica) | | Jamaica Bureau of Standards |
| 日本(Japan) | AIST | 日本產業技術總合研究院 |
| | | Agency of Industrial Science and Technology |
| | NMIJ | National Metrology Institute of Japan |
| | NRLM | 日本計量研究院 National Research Laboratory of Japan |
| | ETL | Electrotechnical Laboratory |
| | NIMC | National Institute of Material and Chemical Research |
| | CRL | Communication Research Laboratory |
| | | Mechanical Engineering Laboratory |
| 約旦(Jordan) | | Jordanian Institution for Standards and Metrology |
| 肯亞(Kenya) | | Weights and Measures Office, Ministry of Commerce |
| | Kenya Bureau of Standards |
| 韓國(Korea) | KRISS | 韓國國家標準與科學研究院 Korea Research Institute of Standards and Science |
| 盧森堡(Luxemburg) | | Laborattoire de Technologies Industrielles |
| 馬來西亞(Malysia) | SIRIM | Standards and Industrial Research Institute of Malaysia |
| 馬爾他(Malta) | | Malta Standards Authority |
| 馬爾濟斯(Mauritius) | | Mauritius Standards Bureau |
| 墨西哥(Mexico) | CENAM | Centro Nacional de Metrolgia |
| 蒙古(Mongolia) | | Mongolian National Institute for Standardization and Metrol |
| 尼泊爾(Nepal) | | Nepal Bureau of Standards and Metrology |
| 荷蘭(Netherlands) | NMi | 荷蘭標準計量研究院 Nederlands Meetinstituut |
| 紐西蘭(New Zeland) | | Measurement Standards Laboratory |
| 尼加拉瓜(Nicaragua) | | Ministerio de Economia y Desarrollo |
| 挪威(Norway) | | National Measurement Service |
| | Norweigen Metrology and Accreditation Service |
| 巴基斯坦(Pakistan) | | Pakistan Standards Institution |
| | | National Physical & Standards Laboratory |
| 巴拿馬(Panama) | | Ministerio de Comercio e Industria |
| | CENAMEP | Centro Nacional de Metrologia de Panama |
| 巴拉圭(Paraguay) | INTN | Instituto Nacional de Tecnologia y Normalizacion |
| 秘魯(Peru) | | Servicio Nacional de Metrologia |
| 菲律賓(Philippines) | | Metrology Laboratory, Industrial Technology Development Institute, Department of Science and Technology |
| 波蘭(Poland) | | Central Office of Measures |
| 葡萄牙(Portugal) | | Laboratorio Central de Metrologia |
| 羅馬尼亞(Romania) | | Institute National de Metrologie |
| 俄國(Russia) | GOSSTANDART | State Committee of the Russian Federation for Standardization, Metrology and Certification |
| VNIIFTRI | 國家科學研究計量院 All-Russian Scientific Research Institute for Physical and Radio-Technical Measurements |
| VNIIOFI | All-Russian Research Institute for Optophysical Measurement |
| VNIIM | D.I. Mendeleyev Institute for Metrology |
| VNIIMS | All-Russian Scientific Research Institute of Metrological Service |
| UNIIM | Urals Scientific Research Institute of Metrology |
| SNIIM | Siberian Scientific Research Institute of Metrology |
| VNIIR | All-Russian Scientific Research Institute of Flowrate Measurement |
| NPO | "Dalnostandard" Scientific and Production Amalgamatic |
| VS NIIFTRI | Eastern-Siberian Scientific Research Institute of Physico-Technical and Radiotechnical Measurements |
| VNICSMV | All-Russian Scientific Research Centre of Standardization, Information and Certification of Raw Materials, Materials and Substances |
| 沙烏地阿拉伯(Saudi Arabian) | SASO | Saudi Arabian Standards Organization |
| 塞席爾(Seychelles) | | Seychelles Bureau of Standards |
| 新加坡(Singapore) | SPRING | 新加坡生產力與標準局 SPRING Singapore |
| SISIR | Singapore Institute of Standards and Industrial Research |
| 斯洛伐克(Slovak Republic) | | Slovensky Metrologicki Ustav |
| 南非(South Africa) | CSIR | 南非科學與工業研究院 National Metrology Laboratory |
| SABS | South African Bureau of Standards |
| 西班牙(Spanish) | | Centro Espanol de Metrologia |
| 蘇利南(Suriname) | | Metrology Unit, department of Trade and Industry |
| 瑞典(Sweden) | | Swedish National Centre of Metrology |
| | Swedish National Testing and Research Institute |
| 瑞士(Swiss) | SFOM | 瑞士國家計量局 Swiss Federal Office of Metrology and Accreditation |
| 中国台灣(Taiwan) | | Industrial Technology Research Institute, Center for Measurement Standards |
| 坦尚尼亞(Tanzania) | | Metrology Laboratory, Tanzania Bureau of Standards |
| 泰國(Thailand) | | 泰國國家計量研究院 National Institute of Metrology |
| 千里達及托貝哥(Trinidad and Tobago) | | Trinidad and Tobago Bureau of Standards |
| 突尼西亞(Tunisia) | | Institut nacional de la Normalisation et de la Propriete |
| 土耳其(Turkey) | UME | Tubitak Ulusal Metrolji Enstitusu |
| 烏干達(Uganda) | | Ministry of Trade and Industry |
| | Uganda National Bureau of Standards |
| 英國(United Kingdom) | NPL | 英國國家物理研究院 National Physical Laboratory |
| 烏拉圭(Uruguay) | | Sector de Metrologia |
| 美國(USA) | NIST | 美國國家標準與技術研究院 National Institute of Standards and Technology |
| 委內瑞拉(Venezuela) | | Servicio Autonomo Nacional de Metrologia |
| 尚比亞(Zambia) | | Zambia Bureau of Standards |
| 辛巴威(Zimbabwe) | | Scientific and Industrial Research and Development Centre |
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