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Standards GB - Chinese national standards - Page 8761
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
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GB/T 7991.10-2014
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Test method of viterous and porcelain enamels—Part 10:Determination of lead and cadmium release
WITHDRAWN published on 5.12.2014
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GB/T 7991.6-2014
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Test method of vitreous and porcelain enamels—Part 6 High voltage test
WITHDRAWN published on 5.12.2014
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GB 7992-1987
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Vitreous and porcelain enamels for sheet steel--Production of specimens for testing
WITHDRAWN published on 1.1.1987
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GB/T 7993-1987
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Test method of glass-lined equipment for service under corrosive conditions by high voltage
WITHDRAWN published on 24.6.1987
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GB/T 7993-2003
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Vitreous and porcelain enamel—Enamelled articles for service under highly corrosive conditions—High voltage test
WITHDRAWN published on 16.6.2003
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GB/T 7994-1987
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Hydraulic pressure test of glass-lined equipments
WITHDRAWN published on 24.6.1987
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GB/T 7994-2005
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Hydraulic pressure test of glass-lined equipments
WITHDRAWN published on 13.5.2005
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GB/T 7995-1987
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Air seal test method of glass-lined equipments
WITHDRAWN published on 24.6.1987
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GB/T 7995-2005
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Air seal test method of glass-lined equipments
WITHDRAWN published on 13.5.2005
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GB/T 7996-1987
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Nominal volume and nominal diameter for glass-lined vessel
WITHDRAWN published on 1.7.1987
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