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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
Measurement of thermodynamics parameters for marine diesel engine
WITHDRAWN published on 21.4.1986
Selected format:Method of inspection for ship filter
WITHDRAWN published on 21.4.1986
Selected format:Detail specification for electronic component--Semiconductor integrated circuit-CD7176CP sound IF amplifier
WITHDRAWN published on 1.1.1986
Selected format:Detail specification for electronic component--Semiconductor integrated circuit--CD7609CP horizontal and vertical sweep circuit
WITHDRAWN published on 1.1.1986
Selected format:Measurement of pumping speed (volume rate of flow) of positive--Displacement vacuum pumps
WITHDRAWN published on 1.1.1986
Selected format:Measurement of ultimate pressure of positive--Displacement vacuum pumps
WITHDRAWN published on 1.1.1986
Selected format:Measurement of ultimate pressure of positive--Displacement vacuum pumps
WITHDRAWN published on 25.4.1986
Selected format:Measurement of power consumption of positive--Displacement vacuum pumps
WITHDRAWN published on 1.1.1986
Selected format:Measurement of operating temperature of positive--Displacement vacuum pumps
WITHDRAWN published on 1.1.1986
Selected format:Vapour vacuum pumps--Measurement of pumping speed (Volume rate of flow)
WITHDRAWN published on 1.1.1986
Selected format:Latest update: 2026-04-17 (Number of items: 2 274 270)
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