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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
Guide of environmental design for electrical accessories—Part 1:General rules
WITHDRAWN published on 9.8.2010
Selected format:Guide of environmental design for electrical accessories—Part 2:Cable conduiting system and cable trunking and ducting system for cable management
WITHDRAWN published on 9.8.2010
Selected format:Guide of environmental design for electrical accessories—Part 3:Cable reels for household application and similar purposes
WITHDRAWN published on 9.8.2010
Selected format:Guide of environmental design for electrical accessories—Part 4:Plugs,socket-outlets and couplers for industrial purposes
WITHDRAWN published on 9.8.2010
Selected format:Guide of environmental design for electrical accessories—Part 5:Plugs and socket-outlets for household and similar purposes
WITHDRAWN published on 9.8.2010
Selected format:Guide of environmental design for electrical accessories—Part 6:Appliance couplers for household and similar purposes
WITHDRAWN published on 9.8.2010
Selected format:Guide of environmental design for electrical accessories—Part 7:Connecting devices for low-voltage circuits for household and similar purposes
WITHDRAWN published on 9.8.2010
Selected format:Guide of environmental design for electrical accessories—Part 8:Switches for household and similar fixed electrical installations
WITHDRAWN published on 9.8.2010
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WITHDRAWN published on 1.1.1981
Selected format:Long afterglow phosphors activated by rare earths
WITHDRAWN published on 9.8.2010
Selected format:Latest update: 2026-04-02 (Number of items: 2 270 295)
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