PRIMARY HARDNESS STANDARD OF BRINELL HARDNESS IN JAPAN

Koichiro Hattori, Takashi Usuda

Abstract

In the hardness standard, the top of national traceability chain is the primary hardness blocks. The National Metrology Institute of Japan (NMIJ) will start calibration service of primary Brinell hardness blocks. The uncertainty of the Brinell blocks is considered following to the test conditions presented in the paper.

Keywords

uncertainty, Brinell hardness

Download

PWC-2006-TC5-015u.pdf

DOI

-

IMEKO TC

TC5 - Hardness Measurement

Back to the proceedings