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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
Appliance couplers for household and similar general purposes—Part 3: Standard sheets and gauges
Standard published on 11.7.2022
Selected format:Boxes and enclosures for electrical accessories for household and similar fixed electrical installations—Part 1:General requirements
Standard published on 10.12.2019
Selected format:Boxes and enclosures for electrical accessories for household and similar fixed electrical installations—Part 21: Particular requirements for boxes and enclosures with provision for suspension means
Standard published on 15.4.2022
Selected format:Boxes and enclosures for electrical accessories for household and similar fixed electrical installations—Part 22: Particular requirements for connecting boxes and enclosures
Standard published on 15.4.2022
Selected format:Boxes and enclosures for electrical accessories for household and similar fixed electrical installations—Part 23: Particular requirements for floor boxes and enclosures
Standard published on 15.4.2022
Selected format:Boxes and enclosures for electrical accessories for household and similar fixed electrical installations—Part 24: Particular requirements for enclosures for housing protective devices and other power dissipating electrical equipment
Standard published on 31.7.2017
Selected format:High-voltage/low-voltage prefabricated substation
Standard published on 31.3.2020
Selected format:Guide for choice power transformers
Standard published on 10.12.2019
Selected format:Characteristics evaluation of brake linings for automobile—Small sample bench test method
Standard published on 29.9.2024
Selected format:Paints and varnishes - Determination of pigment content - Part 2:Ashing method
Standard published on 14.5.2008
Selected format:Latest update: 2026-09-02 (Number of items: 2 300 045)
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