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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
Synchronous belt drives—Automotive synchronous pulleys
Standard published on 1.11.2017
Selected format:Specifications for steel-bonded tungsten carbides and determination of its transverse rupture strength, impact toughness and hardness
Standard published on 11.8.2008
Selected format:Sintered metal friction materials--Determination of density
Standard published on 9.4.2002
Selected format:
Sintered metal friction materials—Determination of density
Execute Date: january 2026
Standard published on 30.6.2025
Selected format:Sintered metal friction materials--Determination of transverse rupture strength
Standard published on 9.4.2002
Selected format:
Sintered metal friction materials—Determination of transverse rupture strength
Execute Date: january 2026
Standard published on 30.6.2025
Selected format:Sintered metal friction materials--Determination of tensile strength
Standard published on 9.4.2002
Selected format:
Sintered metal friction materials—Determination of tensile strength
Execute Date: january 2026
Standard published on 30.6.2025
Selected format:Sintered metal friction materials--Determination of compressive strength
Standard published on 9.4.2002
Selected format:Sintered metal friction materials--Determination of apparent hardness
Standard published on 9.4.2002
Selected format:Latest update: 2025-08-15 (Number of items: 2 211 582)
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