GB/T 4340.3-2025 Active National standards

GB/T 4340.3-2025 Metallic materials—Vickers hardness test—Part 3:Calibration of reference blocks

GB/T 4340.3-2025 Metallic materials—Vickers hardness test—Part 3:Calibration of reference blocks

Publish Date: 2025-03-28 Implement Date: 2025-10-01 For services related to genuine standard inquiry, procurement, translation, and other related services in China, please Contact Us

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Basic Information

Standard Code: GB/T 4340.3-2025

Standard Type: National standards

Standard Status: Active

is_force_gb: no

CCS Name: Metallic material testing machine

ICS Name: Mechanical testing

Publish Date: 2025-03-28

Implement Date: 2025-10-01

Pages: 17 pages

Scope

This document specifies the manufacturing requirements and calibration methods for standard hardness blocks used in the indirect testing of Vickers hardness testers as described in GB/T 4340.2. This document is only applicable to the calibration of standard blocks with a diagonal length of not less than 0.020 mm.

Development Information

Word Count: 31 Thousand words Pages: 17 pages

Same series standard

GB/T 4340.2-2025 Metallic materials—Vickers hardness test—Part 2:Verification and calibration of testing machines

Replace the following standards

GB/T 4340.3-2012 Metallic materials—Vickers hardness test—Part 3:Calibration of reference blocks

Referenced Standards

GB/T 4340.1-1999 Metallic materials—Vickers hardness test—Part 1:Test method GB/T 4340.1-2009 Metallic materials—Vickers hardness test—Part 1:Test method GB/T 4340.1-2024 Metallic materials—Vickers hardness test—Part 1:Test method GB/T 4340.2-1999 Metallic vickers hardness test—Part 2:Verification of hardness testers GB/T 4340.2-2012 Metallic materials—Vickers hardness test—Part 2:Verification and calibration of testing machines GB/T 4340.2-2025 Metallic materials—Vickers hardness test—Part 2:Verification and calibration of testing machines GB/T 13634-2000 Calibration of force-proving instruments used for the verification of testing machines GB/T 13634-2008 Calibration of force-proving instruments used for the verification of uniaxial testing machines GB/T 13634-2019 Metallic materials—Calibration of force-proving instruments used for the verification of uniaxial testing machines

Adopt standards

ISO 6507-3:2018

Related Standards

GB/T 3159-1992 Replaced

GB/T 3159-1992 Hydraulic universal testing machines

Publish Date: 1992-08-29

GB/T 3722-1992 Replaced

GB/T 3722-1992 Hydraulic compression testing machines

Publish Date: 1992-08-29

GB/T 15099-1994 Abolished

GB/T 15099-1994 Test methods for mechanical shock fragility of products, using shock machines

Publish Date: 1994-07-18

GB/T 16491-1996 Replaced

GB/T 16491-1996 Electronic universal testing machines

Publish Date: 1996-08-13

GB/T 16826-1997 Replaced

GB/T 16826-1997 Electro-hydraulic universal testing machines

Publish Date: 1997-05-29

GB/T 9238-1998 Replaced

GB/T 9238-1998 Symbols for balancing machines and associated instrumentation

Publish Date: 1998-11-02