金属材料的洛氏硬度测量指南

NIST(National Institute of Standards and Technology) Recommended Practice Guide

1.introduction
2.Rockwell Hardness Test
3.Test procedure
4.Reference test block standards
5.Verifications of Rockwell hardness machines
6.Monitoring test machine performance
7.Reducing messurement differences and errors
8.Traceability,error,and uncertainty
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