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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
Flame-resistant and water-proof fabrics and terpaulines coated with PVC on both sides
WITHDRAWN published on 21.2.1997
Selected format:Function representation of particle size distribution Power-function
WITHDRAWN published on 4.3.1997
Selected format:Blanking clearance
WITHDRAWN published on 4.3.1997
Selected format:Thermal spraying--Self-fluxing alloy coatings
WITHDRAWN published on 4.3.1997
Selected format:Zinc alloy castings
WITHDRAWN published on 4.3.1997
Selected format:Surface waviness terms
WITHDRAWN published on 4.3.1997
Selected format:Bellows expansion joints for pressure vessel
WITHDRAWN published on 4.3.1997
Selected format:Determination of the acid value of plasticizers (3)
WITHDRAWN published on 1.1.1981
Selected format:Electrical submersible pump units
WITHDRAWN published on 28.8.2008
Selected format:The types, general parameters and conjunction sizes of electrical submersible pumping equipment
WITHDRAWN published on 4.3.1997
Selected format:Latest update: 2025-11-12 (Number of items: 2 243 625)
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