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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
Basic parameters for metering pump
WITHDRAWN published on 1.1.1987
Selected format:Metering pump
WITHDRAWN published on 23.12.1996
Selected format:Metering pump
WITHDRAWN published on 1.7.2008
Selected format:Method of testing metering pump
WITHDRAWN published on 1.1.1987
Selected format:Method of testing power reciprocating pump
WITHDRAWN published on 23.5.1987
Selected format:Test methods for power reciprocating pumps
WITHDRAWN published on 23.1.2006
Selected format:Classification and vocabulary for reciprocating pump
WITHDRAWN published on 23.5.1987
Selected format:Limits of sound power level for noise emitted by air compressors (for power source use) and diaphragmcompressors
WITHDRAWN published on 23.5.1987
Selected format:Reciprocating piston air compressors--Basic parameters
WITHDRAWN published on 23.5.1987
Selected format:General specification for anodic shield coating of ship and ocean engineering
WITHDRAWN published on 25.5.1987
Selected format:Latest update: 2026-03-29 (Number of items: 2 269 691)
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