GB/T 18449.2-2012

Active

Metallic materials - Knoop hardness test - Part 2：Verification and calibration of testing machines

金属材料努氏硬度试验第2部分：硬度计的检验与校准

Standard Type

GBT

ICS

77.040.10

CCS

N71

Status

Active

Issue Date

2012-12-31

Implementation

2013-06-01

Centralized Committee

中国机械工业联合会

Issuing Authority

中华人民共和国国家质量监督检验检疫总局、中国国家标准化管理委员会

Application Summary AI generated

This standard specifies the methods for verifying and calibrating Knoop hardness testing machines used to measure the hardness of metallic materials. It is applied in quality control and laboratory settings within the metallurgy and manufacturing industries to ensure the accuracy and repeatability of Knoop hardness test results. The standard covers direct verification of force, indenter geometry, and measurement systems, as well as indirect verification using reference test blocks.

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Transparency note: The application summary and key sentences on this page were automatically generated by AI from the standard's original text. This content has not been human-verified and should not be used for compliance or regulatory purposes. Always refer to the official standard document from the issuing authority.