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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
General test method in salt industry - Determination of iodine
Standard published on 29.6.2012
Selected format:General test method in salt industry - Determination of sulfate
Standard published on 29.6.2012
Selected format:General test method in salt industry - Determination of lead
Standard published on 29.6.2012
Selected format:Types and dimensions of a.c.capacitance graded bushings
Standard published on 29.12.2017
Selected format:Electrical installations in ships—Part 1: Choice and installation of electrical cables
Standard published on 5.10.2025
Selected format:Marine cable - Choice and installation of coaxial cables
Standard published on 2.9.2010
Selected format:Marine cable - Choice and installation of telecommunication cables and radio-frequency cables
Standard published on 2.9.2010
Selected format:Industrial rigid laminated sheets based on thermosetting resins for electrical purposes - Part 1: Definitions, designations and general requirements
Standard published on 10.6.2009
Selected format:Industrial rigid laminated sheets based on thermosetting resins for electrical purposes - Part 10: Requirements for rigid laminated sheets based on bis-maleimide resins
Standard published on 10.6.2009
Selected format:Industrial rigid laminated sheets based on thermosetting resins for electrical purposes - Part 11: Requirements for rigid laminated sheets based on polyamide-imide resins
Standard published on 10.6.2009
Selected format:Latest update: 2026-06-11 (Number of items: 2 281 927)
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