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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
Leather—Tests for colour fastness—Colour fastness to rotational rubbing
Standard published on 6.8.2023
Selected format:Tungsten carbide powder
Standard published on 4.6.2019
Selected format:Leather—Tests for colour fastness—Colour fastness to saliva
Standard published on 6.8.2023
Selected format:Timekeeping instruments—Watch external parts made of hard material—General requirements and test methods
Standard published on 6.8.2023
Selected format:Thermoplastics pipes for the conveyance of fluids—Dimensions and tolerances—Part 1:Metric series
Standard published on 6.8.2023
Selected format:Basic terminologies of traditional Chinese veterinary medicine
Standard published on 6.8.2023
Selected format:Determination of plant growth regulators in fertilizers—Gas chromatography-mass spectrometry
Standard published on 6.8.2023
Selected format:Determination of total nitrogen content for fertilizers—Dumas combustion method
Standard published on 6.8.2023
Selected format:Determination of tylosin, tylvalosin and tilmicosin in feeds—Liquid chromatography-tandem mass spectrometry
Standard published on 6.8.2023
Selected format:Determination of lysine, methionine and threonine in commercial amino acid products and additive premixture feeds
Standard published on 6.8.2023
Selected format:Latest update: 2026-09-19 (Number of items: 2 302 332)
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