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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
Low-voltage switchgear and controlgear Multiple function equipment Section 2:Control and protective switching devices(or equipment)(CPS)
WITHDRAWN published on 21.12.1998
Selected format:Low-voltage switchgear and controlgear—Part 6-2:Multiple function equipment—Control and protective switching devices(or equipment)(CPS)
WITHDRAWN published on 19.9.2008
Selected format:Aerial insulated cables with rated voltages of 10kV and 35kV
WITHDRAWN published on 4.1.1993
Selected format:-
WITHDRAWN published on 1.1.1978
Selected format:Types and safety technical requirements of system earthing
WITHDRAWN published on 4.1.1993
Selected format:Standard colours for topographic maps
WITHDRAWN published on 4.1.1993
Selected format:Dosimetry of X and reference radiations for radiation protection over the energy range from 8 keV to 1.3 MeV
WITHDRAWN published on 4.1.1993
Selected format:Installed X or gamma radiation doserate meters, warning assemblies and monitors for use in radiation protection
WITHDRAWN published on 4.1.1993
Selected format:Neutron reference radiations for calibrating neutron- measuring devices used for radiation protection purposes and for determining their response as a function of neutron energy
WITHDRAWN published on 4.1.1993
Selected format:Evaluation of surface contamination—Part 1:Beta-emitters(maximum beta energy greater than 0.15MeV)and alpha emitters
WITHDRAWN published on 4.1.1993
Selected format:Latest update: 2026-06-14 (Number of items: 2 282 206)
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