GB/T 42670-2023 Active National standards

GB/T 42670-2023 Test method for Rockwell hardness of carbon materials

GB/T 42670-2023 Test method for Rockwell hardness of carbon materials

Publish Date: 2023-08-06 Implement Date: 2024-03-01 For services related to genuine standard inquiry, procurement, translation, and other related services in China, please Contact Us

Basic Information

Standard Code: GB/T 42670-2023

Standard Type: National standards

Standard Status: Active

is_force_gb: no

CCS Name: Carbon materials

ICS Name: Conductor materials

Publish Date: 2023-08-06

Implement Date: 2024-03-01

Pages: 8 pages

Scope

This document describes the principles, instrumentation, samples, test procedures, precision, and test reports for the determination of Rockwell hardness of carbon materials. This document is applicable to the determination of Rockwell hardness of carbon materials with aggregate particles smaller than 0.8 mm. Other carbon materials can be used for reference.

Development Information

Word Count: 17 Thousand words Pages: 8 pages

Referenced Standards

GB/T 230.2-2002 Metallic rockwell hardness test—Part 2:Verification and calibration of hardness testers(scales A,B,C,D,E,F,G,H,K,N,T) GB/T 230.2-2012 Metallic materials—Rockwell hardness test—Part 2:Verification and calibration of testing machines GB/T 230.2-2022 Metallic materials—Rockwell hardness test—Part 2:Verification and calibration of testing machines and indenters GB/T 1427-2000 Sample method of carbon material GB/T 1427-2016 Sample method of carbon material GB/T 8170-1987 Rules for rounding off of numberical values GB/T 8170-2008 Rules of rounding off for numerical values & expression and judgement of limiting values JJG 112-2013 Metallic Rockwell Hardness Testing Machines(Scales A,B,C,D,E,F,G,H,K,N,T) JJG 884-1994 Plastic Rock Well Hardness Testing Machine JJG 112-2003 Verification Regulation of Metallic Rockwell Hardness Testers(Scales A,B,C,D,E,F,G,H,K,N,T)

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