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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
Paints and varnishes—Determination of resistance to liquids—Part 5:Temperature-gradient oven methods
WITHDRAWN published on 15.5.2015
Selected format:Method for the determination of the density of washing oil
WITHDRAWN published on 1.1.1982
Selected format:Method for the determination of the distillation process of washing oil
WITHDRAWN published on 1.1.1982
Selected format:Method for the determination of the phenol content of washing oil
WITHDRAWN published on 1.1.1982
Selected format:Method for the determination of naphthalene content of washing oil
WITHDRAWN published on 1.1.1982
Selected format:Method for the determination of the viscosity of washing oil
WITHDRAWN published on 1.1.1982
Selected format:Method for the determination of crystallized matter at 15 centigrade of washing oil
WITHDRAWN published on 1.1.1982
Selected format:Trichlorosilane for silicon epitaxial
WITHDRAWN published on 31.12.2014
Selected format:Polished monocrystalline silicon carbide wafers
WITHDRAWN published on 31.12.2014
Selected format:Prostheses and orthoses—Factors to be considered when specifying a prosthesis for a person who has had a lower limb amputation
WITHDRAWN published on 31.12.2014
Selected format:Latest update: 2026-04-23 (Number of items: 2 274 600)
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