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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
Specifications for portable steam sterilizers
WITHDRAWN published on 1.1.1983
Selected format:Specifications for vertical and cylindrical steam sterilizers
WITHDRAWN published on 1.1.1983
Selected format:Specifications for horizontal and cylindrical steam sterilizers
WITHDRAWN published on 1.1.1983
Selected format:Specifications for horizontal and rectangular steam sterilizers
WITHDRAWN published on 1.1.1983
Selected format:Timekeeping instruments--Symbolization of control positions
WITHDRAWN published on 1.1.1983
Selected format:Timekeeping instruments—Symbolization of control positions
WITHDRAWN published on 30.12.1994
Selected format:Shock-resistant wristwatches
WITHDRAWN published on 1.1.1983
Selected format:Methods of testing for cotton yarn
WITHDRAWN published on 20.6.1978
Selected format:Wristwatches-water resistance for general use
WITHDRAWN published on 1.1.1983
Selected format:Antimagnetic watches for general purpose use
WITHDRAWN published on 1.1.1983
Selected format:Latest update: 2025-12-29 (Number of items: 2 253 390)
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