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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
Power cables with extruded insulation and their accessories for rated voltages from 1 kV(Um=1.2 kV)up to 35 kV(Um=40.5 kV)—Part 4:Test requirements on accessories for cables with rated voltages from 6 kV(Um=7.2 kV) up to 35 kV(Um=40.5 kV)
WITHDRAWN published on 31.12.2008
Selected format:Directives for the grading of industrial product quality
WITHDRAWN published on 5.1.1991
Selected format:The colours of light signals on aids to navigation
WITHDRAWN published on 29.1.1991
Selected format:-
WITHDRAWN published on 1.1.1977
Selected format:Chemical reagent—Potassium fluoride dihydrate
WITHDRAWN published on 11.3.1994
Selected format:Safety code for the coking plant
WITHDRAWN published on 28.1.1991
Selected format:Safety code for the coking plant
WITHDRAWN published on 23.12.2008
Selected format:Standard of safety for low and intermediate-level solid radioactive wast packages
WITHDRAWN published on 28.1.1991
Selected format:The requirements for supervision of recovery of condensate from steam heating system and technique of automatic steam traps
WITHDRAWN published on 29.1.1991
Selected format:Nuclear fuel assembly identification standard
WITHDRAWN published on 28.1.1991
Selected format:Latest update: 2026-01-11 (Number of items: 2 254 176)
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