| Metrology area, Sub-field | Length, Dimensional Metrology |
| Description | Calibration of surface roughness standards |
| Time of measurements | 2021 - 2023 |
| Status | Measurements completed |
| References | |
| Measurand | Groove depths and Parameters Ra, Rq, Rz, Rt, RSm |
| Transfer device | Surface texture standards |
| Comparison type | Key Comparison |
| Consultative Committee | CCL (Consultative Committee for Length ) |
| Conducted by | APMP (Asia Pacific Metrology Programme) |
| RMO Internal Identifier | APMP.L-K8 |
| Comments | Measurements completed in December 2024 with final stability checks appearing to be okay. New Zealand withdrew without receiving the artefacts. All 18 laboratories have now submitted results. It is anticipated to complete the draft A report around March 2025. Project delays accounted for approximately 20 months, however this included addition of 2 laboratories from the original participant list. |
| Pilot institute |
NMIA
National Measurement Institute, Australia Australia |
| Contact person | Andrew BAKER +61 3 9644 4902 |
| Pilot laboratory | |
|---|---|
| NMIA |
National Measurement Institute, Australia, Australia, APMP |
| CENAM |
Centro Nacional de Metrologia, Mexico, SIM |
| CMS |
ITRI Center for Measurement Standards, Chinese Taipei, APMP |
| INTI |
Instituto Nacional de Tecnologia Industrial, Argentina, SIM |
| KRISS |
Korea Research Institute of Standards and Science, Korea, Republic of, APMP |
| NIM |
National Institute of Metrology, China, APMP |
| NIMT |
National Institute of Metrology (Thailand), Thailand, APMP |
| NIST |
National Institute of Standards and Technology, United States, SIM |
| NMC, A*STAR |
National Metrology Centre, Agency for Science, Technology and Research, Singapore, APMP |
| NMIJ AIST |
National Metrology Institute of Japan, Japan, APMP |
| NMIM |
National Metrology Institute of Malaysia, Malaysia, APMP |
| NPL |
National Physical Laboratory, United Kingdom, EURAMET |
| NPLI |
CSIR National Physical Laboratory of India, India, APMP |
| SASO-NMCC |
National Measurement and Calibration Center - Saudi Standards, Metrology and Quality Organization, Saudi Arabia, GULFMET |
| SCL |
Standards and Calibration Laboratory, Hong Kong, China, APMP |
| SNSU-BSN |
National Measurement Standard - National Standardization Agency of Indonesia, Indonesia, APMP |
| UzNIM |
Uzbek National Institute of Metrology, Uzbekistan, COOMET |
| VNIIMS (now RCAM-Rostest) |
Russian Scientific Research Institute for Metrological Service, Rosstandart (now Research Center for Applied Metrology - Rostest), Russian Federation, COOMET |
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