HARDNESS TRACEABILITY SYSTEM |
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| H. Yamamoto, T. Yamamoto, H. Kawashima, S. Sudoh |
- Abstract:
- As a matter of fact, global standards for hardness testing are set by International Organization for Standardization. The ISO standard for hardness testing consists of three parts: Part 1 is for test methods, Part 2 is for testing machines, and Part 3 is for hardness standard blocks. JIS provides three independent standards, but they have perfect consistency with the three parts of the ISO hardness-testing standard. These standards prescribe that hardness testing machines first be subject to direct verification of their test force, indenter, testing cycle, and hardness indicator, and then that hardness must actually be measured using standardized blocks for indirect verification. This is a globally agreed fact. In this connection, the traceability or the uncertainty of Rockwell hardness has been a topic of international debate. This paper discusses our position on this issue as a manufacturer of hardness standardized blocks.
- Download:
- IMEKO-TC5-2002-002.pdf
- DOI:
- -
- Event details
- IMEKO TC:
- TC5
- Event name:
- Joint International Conference on Force, Mass, Torque, Hardness and Civil Engineering Metrology in the age of globalization
- Title:
- 8th HARDMEKO Conference on Hardness Measurement (together with 18th TC3 Conference on Force, Mass and Torque and 1st TC20 Conference on Civil Engineering Metrology)
- Place:
- Celle, GERMANY
- Time:
- 24 September 2002 - 26 September 2002