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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
Steel blank for seamless gas cylinder
Standard published on 26.8.2008
Selected format:Test methods for prepainted steel sheet and strip
Standard published on 25.3.2019
Selected format:Method for sampling and sample preparation of gold lump ores
Standard published on 30.4.2021
Selected format:The test sieving method for fineness of cement
Standard published on 19.1.2005
Selected format:The test sieving method for fineness of cement
Standard published on 19.1.2005
Selected format:Methods for testing cement fineness—Sieve analysis
Standard published on 25.5.2026
Selected format:Determination of relative tinting strength of colored pigments and relative scattering power of white pigments--Photometric methods
Standard published on 28.4.1992
Selected format:Paints and varnishes--Determination of total lead--Flame atomic absorption spectrometric method
Standard published on 28.4.1992
Selected format:Paints and varnishes - Determination of film thickness
Standard published on 14.5.2008
Selected format:Paints and varnishes--Determination of hiding power--Part 1:Kubelka-Munk method for white and light coloured paints
Standard published on 28.4.1992
Selected format:Latest update: 2026-09-04 (Number of items: 2 300 131)
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