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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
Test methods for time of camera shutters
WITHDRAWN published on 1.12.1987
Selected format:Durability test method for cameras
WITHDRAWN published on 1.12.1987
Selected format:Free fall-down test method for cameras
WITHDRAWN published on 1.12.1987
Selected format:High-temperature and low-temperature test method for cameras
WITHDRAWN published on 1.12.1987
Selected format:Vibration test method for cameras
WITHDRAWN published on 1.12.1987
Selected format:Condition and test method for pack,transport and storage of photographic apparatus
WITHDRAWN published on 1.12.1987
Selected format:Conveyor chains, attachments and sprockets
WITHDRAWN published on 29.10.2003
Selected format:General technical specifications for marine electrical measurement and control instruments
WITHDRAWN published on 7.12.1987
Selected format:Method of breaking tensile test for steel wire ropes
WITHDRAWN published on 7.12.1987
Selected format:Method of breaking tensile test for steel wire ropes
WITHDRAWN published on 1.3.2006
Selected format:Latest update: 2025-07-11 (Number of items: 2 208 012)
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