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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
Meters for cold potable water and hot water—Part 2:Test methods
Standard published on 7.6.2018
Selected format:Meters for cold potable water and hot water—Part 3:Test report format
Standard published on 7.6.2018
Selected format:Meters for cold potable water and hot water—Part 4:Non-metrological requirements not covered in GB/T 778.1
Standard published on 7.6.2018
Selected format:Meters for cold potable water and hot water—Part 5:Installation requirements
Standard published on 7.6.2018
Selected format:Filters—Model designation
Standard published on 29.8.2016
Selected format:Filters—Model designation
Standard published on 29.8.2016
Selected format:Separator—Model designation
Standard published on 14.5.2018
Selected format:Separator—Model designation
Standard published on 14.5.2018
Selected format:Metering pump
Standard published on 28.4.2020
Selected format:Test methods for power reciprocating pump
Standard published on 28.12.2018
Selected format:Latest update: 2026-08-21 (Number of items: 2 298 377)
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