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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
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WITHDRAWN published on 1.1.1985
Selected format:Vulcanized rubber--Test method for the determination of Jones and Schopper hardness
WITHDRAWN published on 24.5.1985
Selected format:Vulcanized rubber--Determination of coefficient of cold-resistance under compression
WITHDRAWN published on 24.5.1985
Selected format:Vulcanized rubber--Determination of coefficient of low temperature resistance at extention
WITHDRAWN published on 24.5.1985
Selected format:Vulcanized rubber--Determination of low temperature stiffening (Gehman test)
WITHDRAWN published on 1.1.1985
Selected format:Rubber,vulcanized or thermoplastic—Determination of low temperature stiffening(Gehman test)
WITHDRAWN published on 28.8.2001
Selected format:Vulcanized rubber--Determination of tensile strength and ultimate elongation at high temperatures
WITHDRAWN published on 24.5.1985
Selected format:Rubber test mixes—Preparation, mixing and vulcanization—Equipment and procedures
WITHDRAWN published on 30.12.1993
Selected format:-
WITHDRAWN published on 1.1.1988
Selected format:Rubber physical tests and chemical tests—Terms
WITHDRAWN published on 26.9.1997
Selected format:Latest update: 2026-04-24 (Number of items: 2 274 650)
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