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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
Moulding materials for windows of unplasticized polyvinyl chloride—Part 3:Determination of properties
WITHDRAWN published on 25.12.1989
Selected format:Allowable tolerances for basic dimensions of plastic windows
WITHDRAWN published on 25.12.1989
Selected format:Determination of impurities particles number in polyvinyl chloride paste resins
WITHDRAWN published on 25.12.1989
Selected format:Preparation method of polyvinyl chloride paste
WITHDRAWN published on 1.1.1989
Selected format:PVC paste resins—Preparation of a paste
WITHDRAWN published on 25.10.1996
Selected format:Determination for apparent viscosity of polyvinyl chloride paste
WITHDRAWN published on 25.12.1989
Selected format:Polyvinyl chloride plastisols--Determination for Brookfield viscosity
WITHDRAWN published on 1.1.1989
Selected format:Polyvinyl chloride plastsols—Determination of fineness of grind
WITHDRAWN published on 12.12.1992
Selected format:Determination for residual acrylamide of polyacrylamide—Bromating method
WITHDRAWN published on 25.12.1989
Selected format:Determination for residual acrylamide of polyacrylamide—Liquid chromatography
WITHDRAWN published on 25.12.1989
Selected format:Latest update: 2025-11-28 (Number of items: 2 248 688)
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