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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
Safety requirements for walking tractors
WITHDRAWN published on 29.8.2001
Selected format:Laboratory animal—Method for examination of Toxoplasma gondii
WITHDRAWN published on 29.8.2001
Selected format:Metallic knoop hardness test Part 1:Test method
WITHDRAWN published on 15.9.2001
Selected format:Metallic materials—Knoop hardness test—Part 1:Test method
WITHDRAWN published on 25.6.2009
Selected format:Metallic knoop hardness test—Part 2:Verification of hardness testers
WITHDRAWN published on 5.11.2001
Selected format:Metallic knoop hardness test—Part 3:Calibration of hardness reference blocks
WITHDRAWN published on 5.11.2001
Selected format:Metallic materials—Knoop hardness test—Part 4:Tables of hardness values
WITHDRAWN published on 25.6.2009
Selected format:Designation of polyethylene and ethylene copolymer materials
WITHDRAWN published on 6.6.1988
Selected format:Polyethylene(PE) moulding and extrusion materials—Part 1:Designation system and basis for specifications
WITHDRAWN published on 10.8.1999
Selected format:Plastics—Polyethylene(PE) moulding and extrusion materials—Part 2:Preparation of test specimens and determination of properties
WITHDRAWN published on 23.1.2006
Selected format:Latest update: 2025-07-20 (Number of items: 2 209 004)
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