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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
Aluminium alloy enclosures for gas-filled high-voltage switchgear
WITHDRAWN published on 5.11.2012
Selected format:Nickel and nickel-copper alloy tube
WITHDRAWN published on 30.12.1981
Selected format:Nickel and nickel alloys tube
WITHDRAWN published on 26.7.2005
Selected format:Nickel and nickel alloys tube
WITHDRAWN published on 17.12.2013
Selected format:Long-term radiation ageing in polymers - Part 1: Techniques for monitoring diffusion-limited oxidation
WITHDRAWN published on 5.11.2012
Selected format:Long-term radiation ageing in polymers - Part 2: Procedures for predicting ageing at low dose rates
WITHDRAWN published on 5.11.2012
Selected format:Long-term radiation ageing in polymers - Part 3: Procedures for in-service monitoring of low-voltage cable materials
WITHDRAWN published on 5.11.2012
Selected format:Information technology—Common biometric exchange formats framework—Part 2:Procedures for the operation of the biometric registration authority
WITHDRAWN published on 3.9.2014
Selected format:Information technology service—Operation and maintenance—Part 1:General requirements
WITHDRAWN published on 5.11.2012
Selected format:Information security technology - Guideline for personal information protection within information system for public and commercial services
WITHDRAWN published on 5.11.2012
Selected format:Latest update: 2026-04-30 (Number of items: 2 275 280)
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