| Metrology area, Sub-field | Ionizing Radiation, Section I (x and gamma rays, electrons) |
| Description | Comparison of national absorbed dose to water standards |
| Time of measurements | 2009 - 2010 |
| Status | Approved for equivalence |
| Final Reports of the comparisons | |
| References | |
| Measurand | Absorbed dose to water in mGy/s |
| Parameters | Radiation type: Co-60 |
| Transfer device | Three ionization chambers as transfer standards and two link laboratories to the BIPM |
| Comparison type | Key Comparison |
| Consultative Committee | CCRI (Consultative Committee for Ionizing Radiation) |
| Conducted by | APMP (Asia Pacific Metrology Programme) |
| Comments | The results of this comparison were no longer linked to the continuous comparison BIPM.RI(I)-K4 on 23 February 2026 as the measurements are older than 15 years stated by the CCRI rules. |
| Pilot institute |
NRSL/INER
Institute of Nuclear Energy Research Chinese Taipei |
| Contact person | Chien-Hau Chu +886 3 471 1400 ext 7741 |
| Pilot laboratory | |
|---|---|
| NRSL/INER |
Institute of Nuclear Energy Research, Chinese Taipei, APMP |
| AECS-NRML |
Atomic Energy Commission of Syria, Syrian Arab Republic, APMP |
| ARPANSA |
Australian Radiation Protection and Nuclear Safety Agency, Australia, APMP |
| BARC |
Bhabha Atomic Research Centre, India, APMP |
| DMSc |
Department of Medical Sciences, Thailand, APMP |
| KRISS |
Korea Research Institute of Standards and Science, Korea, Republic of, APMP |
| NIM |
National Institute of Metrology, China, APMP |
| NIS |
National Institute for Standards, Egypt, AFRIMETS |
| NMIJ AIST |
National Metrology Institute of Japan, Japan, APMP |
| NMISA |
National Metrology Institute of South Africa, South Africa, AFRIMETS |
| Nuclear Malaysia |
Malaysian Nuclear Agency, Malaysia, APMP |
| PTB |
Physikalisch-Technische Bundesanstalt, Germany, EURAMET |
| PTKMR-BATAN |
Center for Technology of Radiation Safety and Metrology, National Nuclear Energy Agency, Indonesia, APMP |
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