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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
Textiles--Tests for colour fastness--Instrumental assessment of the degree of staining of adjacent fabrics
WITHDRAWN published on 19.5.1986
Selected format:-
WITHDRAWN published on 1.1.1986
Selected format:A series of size of cotton knitted underwear
WITHDRAWN published on 15.9.1997
Selected format:Method for testing household coal and stoves
WITHDRAWN published on 17.5.1986
Selected format:Calculation of scuffing load capacity for involute cylindrical gears
WITHDRAWN published on 24.5.1986
Selected format:Castings—System of dimensional tolerances and machining allowances
WITHDRAWN published on 3.9.1999
Selected format:Castings—Dimensional tolerances and geometrical tolerances and machining allowances
WITHDRAWN published on 29.12.2017
Selected format:Plain bearings--Methods of dimensional control--Peripheral length checking of thin-walled half bearings
WITHDRAWN published on 1.1.1986
Selected format:Technical factors influencing the quality of the fusion welded joints in steel
WITHDRAWN published on 24.5.1986
Selected format:Classification of imperfections in metallic fusion welds, with explanations
WITHDRAWN published on 24.5.1986
Selected format:Latest update: 2026-04-15 (Number of items: 2 272 661)
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