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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
Plastics - Film and sheeting - Determination of tear resistance - Part 2: Elmendorf method
Standard published on 15.6.2009
Selected format:D001 macroporous strongly acidic styrene type cation exchange resins
Standard published on 6.9.2013
Selected format:D201 macroporous strongly basic styrene type anion exchange resins
Standard published on 6.9.2013
Selected format:Test method for the determination of oxygen index of insulating liquids
Standard published on 25.10.1996
Selected format:Plastics - Determination of melting behaviour (melting temperature or melting range) of semi-crystalline polymers by capillary tube and polarizing-microscope methods
Standard published on 4.8.2008
Selected format:Identification of saturated rubbers in unsaturated rubbers
Standard published on 1.4.2008
Selected format:Rubbervulcanized--Test method of resistance to artificial weathering (Fluorescent UV lamp)
Standard published on 28.10.1996
Selected format:Rubber,vulcanizedDetermination of adhesion to wire cord
Standard published on 22.12.2014
Selected format:Belt drives - Pulleys and V-ribbed belts for industrial applications - PH, PJ, PK, PL and PM profiles:dimensions
Standard published on 24.4.2009
Selected format:Rubber hoses and hose assemblies for transferring anhydrous ammonia - Specification
Standard published on 19.7.2013
Selected format:Latest update: 2026-06-14 (Number of items: 2 282 206)
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