| Metrology area, Sub-field | Length, Dimensional Metrology |
| Description | Calibration of surface roughness standards |
| Time of measurements | 2021 - 2023 |
| Status | Report in progress, draft B |
| 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 | All measurements completed in December 2024. Draft A.1 report issued in April 2025. After numerous versions, Draft B submitted to CCL for review on 10 October 2026. |
| 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 |
Industrial Technology Research Institute/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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