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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
Standard test method for rubber deterioration - Surface cracking
Standard published on 24.4.2009
Selected format:Magnetic rubber--Determination method of magnetic properties
Standard published on 31.3.1989
Selected format:Rubber, vulcanized or thermoplasticAntistatic and conductive productsDetermination of electrical resistance
Standard published on 31.12.2014
Selected format:Rubber, vulcanized or thermoplastic - Determination of adhesion to metal - Two-plate method
Standard published on 24.4.2009
Selected format:Sodium hydroxide for chemical fiber use
Standard published on 6.9.2013
Selected format:Sodium hydroxide for chemical fiber use - Determination of sodium hydroxide content
Standard published on 13.8.2007
Selected format:Sodium hydroxide for chemical fiber use - Determination of sodium chloride content - Spectrometric method
Standard published on 13.8.2007
Selected format:Sodium hydroxide for chemical fiber use--Determination of the calcium content--EDTA complexometric method
Standard published on 25.8.2003
Selected format:Sodium hydroxide for chemical fiber use - Determination of silicon content - Reduced molybdosilicate spectrophotometric method
Standard published on 29.12.2006
Selected format:Sodium hydroxide for chemical fiber use - Determination of sulphate content
Standard published on 29.12.2006
Selected format:Latest update: 2026-03-17 (Number of items: 2 266 788)
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