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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
Hydraulic fluid power--General rules for the application of equipment to transmission and control systems
WITHDRAWN published on 1.1.1983
Selected format:Hydraulic fluid power—General rules relating to systems
WITHDRAWN published on 17.12.2001
Selected format:Determination of sound power levels of noise sources--Engineering method and quasi-engineering method
WITHDRAWN published on 1.1.1983
Selected format:Acoustics—Determination of sound power levels of noise sources using sound pressure—Engineering method in an essentially free field over a reflecting plane
WITHDRAWN published on 27.5.1996
Selected format:Determination of sound power levels of noise sources--Survey method
WITHDRAWN published on 1.1.1983
Selected format:Acoustics—Determination of sound power levels of noise sources using sound pressure—Survey method using an enveloping measurement surface over a reflecting plane
WITHDRAWN published on 27.5.1996
Selected format:Scales and sizes for plotting frequency characteristics and polar diagrams
WITHDRAWN published on 23.6.1983
Selected format:Determinations of tetra-ethyl lead content in gasoline(chromate method)
WITHDRAWN published on 24.10.1964
Selected format:-
WITHDRAWN published on 1.1.1983
Selected format:Platinum-10% Rhodium/Platinum thermocouple wires
WITHDRAWN published on 11.12.1998
Selected format:Latest update: 2025-12-29 (Number of items: 2 253 390)
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