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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
Requirement and measurement methods of electromagnetic compatibility for 800MHz CDMA digital cellular telecommunications system—Part 1:Mobile station and ancillary equipment
WITHDRAWN published on 15.3.2004
Selected format:Technical guidelines for environmental impact assessment of marine engineering
WITHDRAWN published on 25.3.2004
Selected format:Laboratories—General requirements for biosafety
WITHDRAWN published on 5.4.2004
Selected format:Movable parts of light cargo hoisting rod
WITHDRAWN published on 1.1.1980
Selected format:Telecommunication regulation for maritime mobile services-General
WITHDRAWN published on 28.4.2004
Selected format:Technical requirements for INMARSAT B ship earth station
WITHDRAWN published on 28.4.2004
Selected format:Classifications for Petroleum resources/reserves
WITHDRAWN published on 30.4.2004
Selected format:Classification for petroleum resources/reserves
WITHDRAWN published on 30.4.2004
Selected format:Mechanical sampling of coal—Part 1:Method for sampling
WITHDRAWN published on 30.4.2004
Selected format:Mechanical sampling of coal—Part 2:Method for sample preparation
WITHDRAWN published on 30.4.2004
Selected format:Latest update: 2025-12-22 (Number of items: 2 253 013)
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