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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
Generic specification for equipment of cordlesstelephone system
Standard published on 28.5.1997
Selected format:Geometrical product specifications (GPS)—Dimensioning and tolerancing—Non-rigid parts
Standard published on 12.10.2022
Selected format:Blank detail specification for rectifier diodes (including avalanche rectifier diodes)ambient and case-ratedfor currents greater than 100A
Standard published on 28.6.1997
Selected format:Low-voltage electrical installations - Part 1: Fundamental principles, assessment of general characteristics,definitions
Standard published on 19.6.2008
Selected format:Low-voltage electrical installations—Part 4-44: Protection for safety—Protection against voltage disturbances and electromagnetic disturbances
Standard published on 11.10.2021
Selected format:Low-voltage electrical installations—Part 7-701: Requirements for special installations or locations—Locations containing a bath or shower
Standard published on 30.12.2022
Selected format:Electrical installations of buildings - Part 7-703: Requirements for special installations or locations - Rooms and cabins containing sauna heaters
Standard published on 10.11.2010
Selected format:Electrical installations of buildings - Part 5-51: Selection and erection of electrical equipment - Common rules
Standard published on 14.1.2011
Selected format:Low-voltage electrical installations—Part 7-702: Requirements for special installations or locations—Swimming pools and fountains
Standard published on 31.7.2017
Selected format:Low-voltage electrical installations—Part 4-42: Protection for safety—Protection against thermal effects
Standard published on 1.11.2017
Selected format:Latest update: 2026-08-26 (Number of items: 2 298 418)
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