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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
Refrigerant compressor for motor vehicle air condition
WITHDRAWN published on 14.1.2008
Selected format:Motor vehicle air-conditioning unit
WITHDRAWN published on 14.1.2008
Selected format:Heat pump water heater for commercial industrial and similar application
WITHDRAWN published on 14.1.2008
Selected format:Positive displacement refrigerant compressor condensing unit
WITHDRAWN published on 14.1.2008
Selected format:Specification for equipping and managing of measuring instrument of energy in fossil power plants
WITHDRAWN published on 21.1.2008
Selected format:Determination of bismuth content in tellurium--Potassium iodide, brucine photometric method
WITHDRAWN published on 1.1.1980
Selected format:The norm of energy consumption per unit product of carbon materials
WITHDRAWN published on 21.1.2008
Selected format:By-product gypsum used in cement
WITHDRAWN published on 9.1.2008
Selected format:Portland cement clinker
WITHDRAWN published on 9.1.2008
Selected format:Portland cement clinker
WITHDRAWN published on 9.1.2008
Selected format:Latest update: 2026-08-26 (Number of items: 2 298 418)
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