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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
Determination of ash of plasticizers
WITHDRAWN published on 28.12.1982
Selected format:D201 macroporous strongly basic styrene type anion exchange resins
WITHDRAWN published on 25.10.1996
Selected format:Determination of melting point of semi-crystalline polymers—Capillary tube method
WITHDRAWN published on 25.10.1996
Selected format:Rubbers saturated—Identification in unsaturated rubbers—Part 1:by acid digestion
WITHDRAWN published on 28.10.1996
Selected format:Rubber, vulcanized—Determination of adhesion to wire cord
WITHDRAWN published on 28.10.1996
Selected format:Fast gas chromatographic method for analyzing active ingredients of pesticides—Part 1:12 kinds of pesticides
WITHDRAWN published on 28.10.1996
Selected format:V-ribbed belts and pulleys for industrial applications—Dimensions (PH PJ PK PL and PM profiles)
WITHDRAWN published on 28.10.1996
Selected format:Rubber, vulcanized—Classification—Rubber materials
WITHDRAWN published on 28.10.1996
Selected format:Determination of water content of plasticizers by turbidimetry
WITHDRAWN published on 28.12.1982
Selected format:Rubber and plastics hoses, non-collapsible, for fire-fighting service—Part 1:Semi-rigid reel hose for fixed first-aid installations
WITHDRAWN published on 28.10.1996
Selected format:Latest update: 2025-09-15 (Number of items: 2 233 685)
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