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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
Soft mechanical joint grey cast iron pipe
WITHDRAWN published on 7.6.1986
Selected format:Soft mechanical joint grey cast iron pipe
WITHDRAWN published on 10.10.2008
Selected format:Cast steel shot
WITHDRAWN published on 1.1.1986
Selected format:Cast steel grit
WITHDRAWN published on 1.1.1986
Selected format:Cast iron shot
WITHDRAWN published on 1.1.1986
Selected format:Cast iron grit
WITHDRAWN published on 1.1.1986
Selected format:Test method for refractive index of chemical products
WITHDRAWN published on 26.4.1986
Selected format:Liquid chemicals—Determination of refrative index at 20
WITHDRAWN published on 4.6.2008
Selected format:Phthalate esters for industrial use--Methods of test--Measurement of colour after heat treatment
WITHDRAWN published on 1.1.1986
Selected format:Phthalate esters for industrial use—Methods of test—Measurement of colour after heat treatment
WITHDRAWN published on 28.8.2001
Selected format:Latest update: 2026-04-14 (Number of items: 2 272 146)
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