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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
Standard voltages
WITHDRAWN published on 20.4.1993
Selected format:Standard voltages
WITHDRAWN published on 15.9.2003
Selected format:Standard voltages
WITHDRAWN published on 30.4.2007
Selected format:Normal diameters for ventilation pipeline and accessories for ships metric series
WITHDRAWN published on 23.6.1979
Selected format:Safety and health codes for carbon and graphite production
WITHDRAWN published on 12.6.1995
Selected format:Metallic envelope gaskets for pipe flanges
WITHDRAWN published on 15.6.1995
Selected format:Industrial screens and screening—Vocabulary
WITHDRAWN published on 15.6.1995
Selected format:Rule for storage of chemical dangers
WITHDRAWN published on 26.7.1995
Selected format:Terminology for dust explosion prevention
WITHDRAWN published on 19.6.1995
Selected format:Guide for venting of dust explosions
WITHDRAWN published on 19.6.1995
Selected format:Latest update: 2024-09-28 (Number of items: 2 350 600)
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