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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
Paper and board—Determination of bending stiffness—Resonance method
WITHDRAWN published on 18.5.1991
Selected format:Chemical reagent—Potassium hydrogen phthalate
WITHDRAWN published on 20.9.1988
Selected format:Paper and board—Determination of titanium dioxide
WITHDRAWN published on 18.5.1991
Selected format:Determination of separating capacity for chemical analysis filter paper
WITHDRAWN published on 18.5.1991
Selected format:Capacitor tissue paper
WITHDRAWN published on 18.5.1991
Selected format:Paper and board—Determination of tensile properties—Constant rate of elongation method
WITHDRAWN published on 18.5.1991
Selected format:Paper and board—Determination of tensile properties
WITHDRAWN published on 19.8.2008
Selected format:Test methods to determine the thermal performance of domestic solar water heaters
WITHDRAWN published on 22.5.1991
Selected format:Specification for marine metallic propeller
WITHDRAWN published on 22.5.1991
Selected format:Specification for marine metallic propeller
WITHDRAWN published on 2.9.2010
Selected format:Latest update: 2026-01-16 (Number of items: 2 254 749)
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