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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
Rigid cellular plastics - Determination of flexural properties - Part 1: Basic bending test
Standard published on 5.12.2007
Selected format:Rigid cellular plastics - Determination of flexural properties - Part 2: Determination of flexural strength and apparent flexural modulus of elasticity
Standard published on 5.12.2007
Selected format:Rigid cellular plastics—Determination of compression properties
Standard published on 21.7.2020
Selected format:Unplasticized polyvinyl chloride(PVC-U)profiles for the doors and windows
Standard published on 1.11.2017
Selected format:Plasticized polyvinyl chloride PVCcompounds for wire and cable
Standard published on 30.12.2008
Selected format:Clevis pin with head
Standard published on 25.8.2008
Selected format:National food safety standards of food additives -- Zinc gluconate
Standard published on 21.12.2010
Selected format:Seed zones of Chinese forest trees--Seed zones of Pinus tabulaeformis Carr
Standard published on 26.2.1988
Selected format:Seed zones of Chinese forest trees--Seed zones of Larix principis-rupprechtii Mayr.
Standard published on 26.2.1988
Selected format:Seed zones of Chinese forest trees--Seed zones of Platycladus orientalis (Linn) Franco.
Standard published on 26.2.1988
Selected format:Latest update: 2026-04-24 (Number of items: 2 274 650)
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