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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
Gauges for caps and lampholders - Part 5:Gauges for bayonet caps and lampholders
Standard published on 18.6.2008
Selected format:Test method of resistance to steam ageing forrubber latex products
Standard published on 5.3.2003
Selected format:Test methods for compatibility between hydraulic fluids and standard elastomeric materials
Standard published on 4.6.2008
Selected format:Synthetic materials sports field surfaces
Standard published on 31.3.2020
Selected format:Rubber, vulcanized or thermoplastic - Determination of tendency to adhere to and corrode metals
Standard published on 24.4.2009
Selected format:Rubber and rubber productsDetermination of the composition of vulcanizates and uncured compounds by thermogravimetryPart 1Butadiene, ethylene-propylene copolymer and terpolymer, isobutene-isoprene, isoprene and styrene-butadiene rubbers
Standard published on 5.12.2014
Selected format:Rubber and rubber productsDetermination of the composition of vulcanizates and uncured compounds by thermogravimetryPart 2: Acrylonitrile-butadiene and halobutyl rubbers
Standard published on 22.12.2014
Selected format:Rubber and rubber products—Determination of the composition of vulcanizates and uncured compounds by thermogravimetry—Part 3:Hydrocarbon rubbershalogenated rubbers and polysiloxane rubbers after extraction
Standard published on 15.3.2018
Selected format:Rubber and rubber products - Determination of precision for test method standards
Standard published on 15.6.2009
Selected format:Technical symbols for geochemical exploration
Standard published on 30.12.1993
Selected format:Latest update: 2026-08-14 (Number of items: 2 293 479)
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