| Metrology area, Sub-field | Length, Dimensional Metrology |
| Description | Angle standards : optical polygon |
| Time of measurements | 2023 - 2025 |
| Status | Approved for equivalence |
| Final Reports of the comparisons | |
| References | |
| Measurand | Angle Angle deviation |
| Transfer device | 12 sided polygon |
| Comparison type | Key Comparison |
| Consultative Committee | CCL (Consultative Committee for Length ) |
| Conducted by | CCL (Consultative Committee for Length ) |
| Pilot institute |
NRC
National Research Council Canada |
| Contact person | Brian EVES |
| Pilot laboratory | |
|---|---|
| NRC |
National Research Council, Canada, SIM |
| CEM |
Centro Español de Metrologia, Spain, EURAMET |
| CENAM |
Centro Nacional de Metrologia, Mexico, SIM |
| INMETRO |
Instituto Nacional de Metrologia, Qualidade e Tecnologia, Brazil, SIM |
| INRIM |
Istituto Nazionale di Ricerca Metrologica, Italy, EURAMET |
| KRISS |
Korea Research Institute of Standards and Science, Korea, Republic of, APMP |
| NIM |
National Institute of Metrology, China, APMP |
| NMC, A*STAR |
National Metrology Centre, Agency for Science, Technology and Research, Singapore, APMP |
| NMIJ AIST |
National Metrology Institute of Japan, Japan, APMP |
| UME |
TÜBITAK Ulusal Metroloji Enstitüsü, Türkiye, EURAMET |
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