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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
Monitoring and testing method for energy saving of industrial electroheat devices
Standard published on 30.4.2021
Selected format:Monitoring and testing method for energy conservation of refrigerating systems - Part 1: Cold storage systems
Standard published on 30.10.2009
Selected format:Monitoring and testing for energy saving of fan""s unit and distribute tube system
Standard published on 12.10.2022
Selected format:Monitoring and testing method for energy saving of steam heating equipments
Standard published on 9.3.2021
Selected format:Paking containers - Caustic alkali steel drum
Standard published on 16.4.2007
Selected format:Surface active agents - Determination of chelating agent content - Titrimetric method
Standard published on 31.12.2012
Selected format:Oceanography general terminology
Standard published on 14.1.2011
Selected format:Oceanographic terminology - Marine biology
Standard published on 14.1.2011
Selected format:Agricultural tractors—Rear-mounted power take-off types 1, 2, 3 and 4—Part 1: General specificationssafety requirementsdimensions for master shield and clearance zone
Standard published on 24.2.2016
Selected format:Agricultural tractors—Rear-mounted power take-off types 1,2,3 and 4—Part 2: Narrow-track tractors, dimensions for master shield and clearance zone
Standard published on 24.2.2016
Selected format:Latest update: 2026-06-09 (Number of items: 2 281 484)
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