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Standards GB are Chinese national standards, which are issued by China's Standardization Administration Office (SAC).
Chinese national standards are used all over China commonly labeled as GB standards. They determine the united production requirements regarding product safety and quality .
GB standards are often modified or created according to the international standards of ISO, IEC or any other international level.
Although, they are largely harmonized, GB standards may differ from international standards .
Approximately 15% of all GB standards are obligatory and they can be identified according to the prefix GB, after which the code of the standards follows:
GB – Obligatory national standards
GB/T – Optional national standards
GB/Z – National steering technical document
Vertical surface broaching machines—Testing of the accuracy
Standard published on 6.8.2023
Selected format:Surface grinding machines with vertical grinding wheel spindle and reciprocating table—Testing of the accuracy
Standard published on 31.12.2021
Selected format:Metal-cutting machine tools - Terminology
Standard published on 11.8.2008
Selected format:Steels for cold heading and cold extruding
Standard published on 11.9.2015
Selected format:Chemical reagent - Potassium thiocyanate
Standard published on 12.5.2011
Selected format:Carbide detachable bit for rock drilling
Standard published on 11.9.2015
Selected format:
Detachable bit and rod for rock drilling tools
Execute Date: december 2026
Standard published on 25.5.2026
Selected format:Hollow hexagonal drill rods with taperd connection for rock drilling
Standard published on 13.12.2016
Selected format:Thread extension steel bars for rock drilling
Standard published on 25.10.2007
Selected format:Liquid chemicals—Determination of refractive index
Standard published on 12.10.2022
Selected format:Latest update: 2026-06-21 (Number of items: 2 283 476)
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