| Metrology area, Sub-field | Length, Dimensional Metrology |
| Description | Geometrical roundness measurements using error separation |
| Time of measurements | 2012 - 2013 |
| Status | Approved |
| Final Reports of the comparisons | |
| References | |
| Measurand | Roundness: 50 nm |
| Transfer device | Glass hemispheres |
| Comparison type | Supplementary Comparison |
| Consultative Committee | CCL (Consultative Committee for Length ) |
| Conducted by | APMP (Asia Pacific Metrology Programme) |
| Comments | |
| Pilot institute |
NIMT
National Institute of Metrology (Thailand) Thailand |
| Contact person | Anusorn Tonmueanwai +66 2577 5100 ext 4216 |
| Pilot laboratory | |
|---|---|
| NIMT |
National Institute of Metrology (Thailand), Thailand, APMP |
| CMS |
ITRI Center for Measurement Standards, Chinese Taipei, APMP |
| 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 |
| NMIA |
National Measurement Institute, Australia, Australia, APMP |
| NMIJ AIST |
National Metrology Institute of Japan, Japan, APMP |
| NMISA |
National Metrology Institute of South Africa, South Africa, AFRIMETS |
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