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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
The test sieving method for fineness of cement
Standard published on 19.1.2005
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:Paints and varnishes - Determination of resistance to filiform corrosion on steel
Standard published on 14.5.2008
Selected format:Plastics - Melamine-formaldehyde powder moulding compoundsMF-PMCs) - Part 1: Designation system and basis for specifications
Standard published on 12.11.2013
Selected format:Plastics - Melamine-formaldehyde powder moulding compoundsMF-PMCs-Part 2: Preparation of test specimens and determination of properties
Standard published on 12.11.2013
Selected format:Plastics - Melamine-formaldehyde powder moulding compounds (MF-PMCs) Part 3: Requirements for selected moulding compounds
Standard published on 12.11.2013
Selected format:Plastics--Aminoplastic moulding materials--Determination of volatile matter
Standard published on 29.4.1992
Selected format:Latest update: 2026-04-02 (Number of items: 2 270 295)
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