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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
Test method for the percentage of length of scoured mohair - Array diagram method
Standard published on 20.8.2008
Selected format:Textile fibres - Test method for linear density - Vibroscope method
Standard published on 7.8.2008
Selected format:Test method for sugar in cotton fibers—Spectrophotometry
Standard published on 6.2.2018
Selected format:Test method for in accel erated weathering building materials
Standard published on 4.5.2008
Selected format:Oxalic acid for industrial use
Standard published on 4.6.2008
Selected format:General specification for printed circuit boards
Standard published on 31.5.2017
Selected format:Information technology—Abstract Syntax Notation OneASN.1—Part 1Specification of basic notation
Standard published on 28.3.2025
Selected format:Information technology—Abstract Syntax Notation OneASN.1—Part 2Information object specification
Standard published on 28.3.2025
Selected format:Information technology—Abstract Syntax Notation OneASN.1—Part 3Constraint specification
Standard published on 28.3.2025
Selected format:Information technology—Abstract Syntax Notation OneASN.1—Part 4Parameterization of ASN.1 specifications
Standard published on 28.3.2025
Selected format:Latest update: 2026-06-10 (Number of items: 2 281 585)
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