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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
General specification for probe tester
Standard published on 28.12.1994
Selected format:General technical specification for cabinet of elect-ronic equipment
Standard published on 28.12.1994
Selected format:Dimensions for hexagonal and square crimping-die cavities indentors gaugesouter conductor crimp sleeves and centre contact crimp barrels for r.f. cables and connectors
Standard published on 28.12.1994
Selected format:Measurement methods of A-chain and B-chain electro-acoustic frequency response of motion-picture control roomsreview rooms and indoor theatres
Standard published on 28.12.1994
Selected format:Determination of sulfur amino acids in feeds—Ion exchange chromatography
Standard published on 17.9.2018
Selected format:Sleeper
Standard published on 12.11.2013
Selected format:Security and resilience—Urban resilience—Framework and principles
Standard published on 3.12.2025
Selected format:Paper and board--Determination of water absorption--Cobb method
Standard published on 15.10.2002
Selected format:Determination of tryptophan in feeds
Standard published on 17.9.2018
Selected format:Thermal specifications and testing method for passive solar houses
Standard published on 30.6.2006
Selected format:Latest update: 2026-06-12 (Number of items: 2 281 969)
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