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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
Melamine for industrial use
Standard published on 29.8.2016
Selected format:Rubber and plastics hoses and hose assemblies—Determination of electrical resistance and conductivity
Standard published on 31.12.2013
Selected format:Rubber and plastics hoses and hose assemblies - Methods of measurement of the dimensions of hoses and the lengths of hose assemblies
Standard published on 19.7.2013
Selected format:Rubber and plastics hoses and hose assemblies—Ratios of proof and burst pressure to maximum working pressure
Standard published on 7.9.2017
Selected format:Rubber and plastics hoses - Hose sizes, minimum and maximum inside diameters, and tolerances on cut-to-length hoses
Standard published on 19.7.2013
Selected format:Rubber and plastics hoses and hose assemblies—Guidelines for selection, storage, use and maintenance
Standard published on 30.8.2019
Selected format:Rubber and plastics hose and hose assemblies--Rules for markingpackage and transportation
Standard published on 28.8.2001
Selected format:Industry reference carbon black 4#
Standard published on 11.10.2021
Selected format:Rubber compounding ingredientsCarbon blackMethod of evaluation in styrene-butadiene rubbers
Standard published on 1.8.2006
Selected format:Geological legends used for regional geological maps
Standard published on 15.5.2015
Selected format:Latest update: 2026-04-19 (Number of items: 2 274 482)
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