GB/T 17394.2-2022: Metallic materials - Leeb hardness test - Part 2: Verification and calibration of hardness testers

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Scope

This document specifies the methods for the direct inspection and indirect inspection of the
Leeb hardness testers (hereinafter referred to as hardness testers) in accordance with GB/T
17394.1.
The direct inspection is suitable for checking whether the performance parameters of the
hardness testers are within the specified range. The indirect inspection is to use the hardness
value of the reference Leeb hardness test blocks calibrated in accordance with GB/T 17394.3
to check the overall performance of the hardness testers in the direction of gravity. Indirect
inspection can be independently applied to regular routine checks of in-use hardness testers.
This document is applicable to hardness testers equipped with D, S, E, D + 15, DL, C and G-
type impact devices.

Basic Data

Standard ID	GB/T 17394.2-2022 (GB/T17394.2-2022)
Description (Translated English)	Metallic materials - Leeb hardness test - Part 2: Verification and calibration of hardness testers
Sector / Industry	National Standard (Recommended)
Classification of Chinese Standard	N71
Word Count Estimation	17,184
Issuing agency(ies)	State Administration for Market Regulation, China National Standardization Administration