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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
Methods of exposure to natural weathering of coating
Standard published on 28.10.1996
Selected format:Temperatures and humidities for conditioning and testing of paint specimens
Standard published on 14.5.2008
Selected format:Paints and varnishes—Determination of scratch resistance—Part 1: Constant-loading method
Standard published on 2.6.2015
Selected format:Paints and varnishes—Determination of scratch resistance —Part 2: Variable-loading method
Standard published on 3.7.2015
Selected format:Paints and varnishes - Pressure test for stackability
Standard published on 14.5.2008
Selected format:Clear liquids - Estimation of colour by the Gardner colour scale - Part 1:Visual method
Standard published on 14.5.2008
Selected format:Clear liquids - Estimation of colour by the platinum-cobalt scale - Part 1:Visual method
Standard published on 14.5.2008
Selected format:Solvent for coating - Determination of distillation range
Standard published on 12.5.2008
Selected format:Binders for paints and varnishes—Determination of softening point—Part 1Ring-and-ball method
Standard published on 15.5.2015
Selected format:Paints and varnishes—Cross-cut test
Standard published on 20.8.2021
Selected format:Latest update: 2026-11-03 (Number of items: 2 209 039)
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