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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
Two dimensional code for commodity
WITHDRAWN published on 12.7.2017
Selected format:Non-ferrous metals and its alloys--Code of designation
WITHDRAWN published on 8.9.1976
Selected format:Determination of plasticizer absorption for polyvinylchloride resins of general use at room temperature
WITHDRAWN published on 6.1.1993
Selected format:Determination of viscosity number of PVC resins in dilute solution
WITHDRAWN published on 16.9.1999
Selected format:Designation of homopolymer and copolymer resins of vinyl chloride
WITHDRAWN published on 1.1.1982
Selected format:Designation of homopolymer and copolymer resins of vinyl chloride
WITHDRAWN published on 24.9.1994
Selected format:The designation of aminoplastic moulding compounds
WITHDRAWN published on 29.12.1982
Selected format:Methods for chemical analysis of glass making sands
WITHDRAWN published on 1.1.1982
Selected format:Petroleum benzene
WITHDRAWN published on 31.3.1989
Selected format:Petroleum benzene
WITHDRAWN published on 29.7.2011
Selected format:Latest update: 2025-12-23 (Number of items: 2 253 013)
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