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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
Test method for water vapor transmission of plastic film and sheet—Desiccant method and water method
Standard published on 26.11.2021
Selected format:Plastics—Film and sheeting—Determination of gas-transmission rate—Part 1:Differential-pressure methods
Standard published on 12.10.2022
Selected format:Plastics—Film and sheeting—Determination of gas-transmission rate—Part 2:Equal-pressure methods
Standard published on 12.10.2022
Selected format:Forage harvesters--Part 1:Vocabulary
Standard published on 16.1.2002
Selected format:Forage harvesters--Part 2:Specification of characteristics and performance
Standard published on 16.1.2002
Selected format:Forage harvesters--Part 3:Test methods
Standard published on 16.1.2002
Selected format:Forage harvesters - part 4Safety and performance
Standard published on 30.11.2009
Selected format:Agricultural and forestry machinery - Safety - Part 1: General requirements
Standard published on 30.9.2009
Selected format:Tractors and machinery for agriculture and forestryTechnical means for ensuring safetyPart 10: Walk-behind powered rotary tillers
Standard published on 19.7.2006
Selected format:Tractors and machinery for agriculture and forestry -- Technical means for ensuring safety -- Part 12: Portable powered hedge-trimmers
Standard published on 24.10.2005
Selected format:Latest update: 2025-08-12 (Number of items: 2 211 925)
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