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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
Preparation of documents used in electrotechnology - Part 5: Index
Standard published on 13.7.2006
Selected format:Quality carbon structure steels
Standard published on 10.12.2015
Selected format:Quality carbon structure steels
Standard published on 10.12.2015
Selected format:Electrical installation in ships—Definitions and general requirements
Standard published on 25.4.2025
Selected format:Markings for electric wires and cables - Part 1: General requirements
Standard published on 18.6.2008
Selected format:Markings for electric wires and cables - Part 2: Standard colours
Standard published on 18.6.2008
Selected format:Markings for electric wires and cables - Part 3Identifications of cables and wires
Standard published on 18.6.2008
Selected format:Markings for electric wires and cables - Part 4Identifications of insulated conductors of cables and wires for electrical appliances and equipments
Standard published on 18.6.2008
Selected format:Markings for electric wires and cables - Part 5: Identifications of insulated cores of power cables
Standard published on 18.6.2008
Selected format:Test charts of transparencies for television
Standard published on 5.11.2012
Selected format:Latest update: 2026-11-10 (Number of items: 2 209 227)
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