| 经济体 | 经济体（英文） | 成立年份 | 机构 | 缩写 |
| 埃及 | Egypt | 1996 | National Institute for Standards | NIS |
| 伊朗 | Iran | 2017 | National Metrology Center of Iran | NMCI |
| 伊拉克 | Iraq | 2017 | Central Organization for Standardization and Quality Control | COSQC |
| 约旦 | Jordan | 2006 | Jordan National Metrology Institute | JNMI |
| 哈萨克斯坦 | Kazakhstan | 2007 | Kazakhstan Institute of Metrology | KazInMetr |
| 肯尼亚 | Kenya | 2010 | Kenya Bureau of Standards | KEBS |
| 沙特阿拉伯 | Saudi Arabia | 2019 | National Measurement and Calibration Center of the Saudi Standards, Metrology and Quality Organization | NMCC/SASO |
| 南非共和国 | South Africa | 1997 | National Metrology Institute of South Africa | NMISA |
| 叙利亚 | Syria | 1997 | National Standards and Calibration Laboratory | NSCL |
| 阿联酋 | United Arab Emirates | 2013 | Dubai Central Laboratory Department | DCL |
| 2016 | Emirates Metrology Institute | EMI |
| 英国 | United Kingdom | 2017 | National Physical Laboratory | NPL |
| 美国 | United States of America | 2016 | National Institute of Standards and Technology | NIST |
| 乌兹别克斯坦 | Uzbekistan | 2019 | Uzbek National Institute of Metrology | UzNIM |
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