BILATERAL COMPARISON IN HRC BETWEEN NMIJ AND NIMT |
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| H. Ishida, T. Sanponpute, R. Wongpithayadisai, S. Miyata, V. Tulasombut, T. Usuda, J. Matsuda, Y. Akimoto, B. Suktat |
- Abstract:
- This bilateral comparison in HRC between National Metrology Institute of Japan, (NMIJ) and National Institute of Metrology (Thailand), (NIMT) was done in order to establish the hardness scales of NIMT and confirm their accuracy, which was designated by NIMT ( 0.45 HRC). The hardness blocks of 20 HRC, 30 HRC, 40 HRC and 60 HRC, which all have uniformity within 0.1 HRC according to EN ISO 6508-3, were used in this comparison. They were measured by NMIJ and NIMT with different conditions in order to indicate the performance of machines and hardness scales. Agreement of machine performance is within ± 0.13 HRC and agreement of hardness scales is within ± 0.24 HRC.
- Keywords:
- Rockwell hardness, Testing cycle
- Download:
- IMEKO-TC5-2004-013.pdf
- DOI:
- -
- Event details
- IMEKO TC:
- TC5
- Event name:
- Hardness Measurements Theory and Application in Laboratories and Industries
- Title:
- 9th HARDMEKO 2004
- Place:
- Washington, DC, USA
- Time:
- 11 November 2004 - 12 November 2004