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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
Fire intumescent seals
WITHDRAWN published on 28.5.1997
Selected format:Fire intumescent seals
WITHDRAWN published on 11.3.2009
Selected format:Technical requirements and test methods for combustibic gas alarm control units
WITHDRAWN published on 28.5.1997
Selected format:Combustible gas alarm control units
WITHDRAWN published on 15.12.2008
Selected format:Steel fire windows
WITHDRAWN published on 28.5.1997
Selected format:Fire windows
WITHDRAWN published on 22.4.2008
Selected format:Rubber—Determination of rebound resilience of vulcanizates
WITHDRAWN published on 25.4.1991
Selected format:Test methods for fire resistance of cotainers
WITHDRAWN published on 28.5.1997
Selected format:Tests and requirements for fire resistance of record protection containers
WITHDRAWN published on 14.3.2006
Selected format:Running result and the monitoring and testing of low-pressure boilers water-treatment equipment
WITHDRAWN published on 3.6.1997
Selected format:Latest update: 2026-11-09 (Number of items: 2 209 259)
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