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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
PVC insulated ribbon cable with a pitch of 1.27mm suitable for insulation displacement termination
WITHDRAWN published on 20.4.1993
Selected format:Regulations for radiation protection of nuclear heat power plant
WITHDRAWN published on 20.4.1993
Selected format:Portable neutron ambient dose equivalent ratemeters for use in radiation protection
WITHDRAWN published on 20.4.1993
Selected format:Radiation protection instrumentation—Neutron ambient dose equivalent(rate) meters
WITHDRAWN published on 22.1.2008
Selected format:Superfinishing stone
WITHDRAWN published on 17.4.1993
Selected format:-
WITHDRAWN published on 1.1.1978
Selected format:Vitrified force-honing stone
WITHDRAWN published on 17.4.1993
Selected format:Testing method for quantities of -Al2O3 phase in alumina with an X-ray diffractometer
WITHDRAWN published on 17.4.1993
Selected format:Testing method for quantities of -Al2O3 phase in alumina with an X-ray diffractometer
WITHDRAWN published on 3.6.2008
Selected format:Determination for grain size distribution of microgrits W3.5 to W0.5 of conventional abrasive
WITHDRAWN published on 17.4.1993
Selected format:Latest update: 2026-04-10 (Number of items: 2 271 455)
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