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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
Plastics—Determination of flammability by oxygen index
WITHDRAWN published on 19.6.1993
Selected format:Plastics--Combustion performance test--Blazing rod method
WITHDRAWN published on 31.12.1980
Selected format:Plastics—Determination of flammability characteristics of rigid plastics in the form of small specimens in contact with an incandescent rod
WITHDRAWN published on 4.8.2008
Selected format:Plastics--Combustion performance test--Horizontal burning method
WITHDRAWN published on 1.1.1980
Selected format:Plastics—Determination of the burning behaviour of horizontal and vertical specimens in contact with a small-flame ignition source
WITHDRAWN published on 14.6.1996
Selected format:Plastics—Determination of burning characteristics—Horizontal and vertical test
WITHDRAWN published on 4.8.2008
Selected format:Plastics--Yellow index test method
WITHDRAWN published on 31.12.1980
Selected format:Metal tubes—Hydrostatic pressure testing
WITHDRAWN published on 21.7.1990
Selected format:Metal materials-Tube - Hydrostatic pressure test
WITHDRAWN published on 18.7.2007
Selected format:Transparent plastics—Transmissivity and haze test
WITHDRAWN published on 31.12.1980
Selected format:Latest update: 2026-04-08 (Number of items: 2 271 105)
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