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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
Cellular material for rubber-plastics shoes--Determination of apparent density
WITHDRAWN published on 1.1.1984
Selected format:Vulcanized rubber—Determination of total sulphur content—Oxygen combustion flask method
WITHDRAWN published on 17.6.1984
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WITHDRAWN published on 1.1.1984
Selected format:Rubber—Determination of ash
WITHDRAWN published on 14.10.1997
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WITHDRAWN published on 1.1.1984
Selected format:Vulcanized rubber—Determination of antidegradant content-Thin layer chromatographic method
WITHDRAWN published on 26.9.1997
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WITHDRAWN published on 1.1.1982
Selected format:Paper and board--Sampling for testing
WITHDRAWN published on 22.2.1989
Selected format:Paper and board—Sampling for testing
WITHDRAWN published on 13.6.2002
Selected format:Vulcanized rubber--Determination of zinc content--Flame atomic absorption spectrometric method
WITHDRAWN published on 17.6.1984
Selected format:Latest update: 2025-09-16 (Number of items: 2 234 278)
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