GB/T 18449.3-2001
Metallic knoop hardness test--Part 3: Calibration of hardness reference blocks (English Version)

Standard No.

GB/T 18449.3-2001

Language

Chinese, Available in English version

Release Date

2001

Published By

General Administration of Quality Supervision, Inspection and Quarantine of the People‘s Republic of China

Status

Be replaced 2013-06

Replace By

GB/T 18449.3-2012

Latest

GB/T 18449.3-2012

Scope

This standard specifies the calibration method of standard hardness blocks (hereinafter referred to as standard blocks) used for indirect testing of Knoop hardness testers according to GB/T 18449.2. This method is only applicable to indentations whose long diagonal length is not less than 20 μm.

GB/T 18449.3-2001 history

• 2012 GB/T 18449.3-2012 Metallic materials.Knoop hardness test.Part 3:Calibration of reference blocks
• 2001 GB/T 18449.3-2001 Metallic knoop hardness test--Part 3: Calibration of hardness reference blocks

GB/T 18449.3-2001 -All Parts