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Standards GB - Chinese national standards - Page 7660
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 4735-1984
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WITHDRAWN published on 1.1.1984
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GB/T 4736-1984
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Standard test method for permeability gas of pottery ware of daily use
WITHDRAWN published on 2.11.1984
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GB/T 4737-1984
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Standard test method for permeability water of pottery ware of daily use
WITHDRAWN published on 2.11.1984
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GB/T 4738.1-1984
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Standard test method for acid,alkaline resistance for ceramic materials of daily use (lump test method)
WITHDRAWN published on 2.11.1984
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GB/T 4738.2-1984
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Standard test method for acid,alkaline resistance for ceramic materials of daily use (particle test method)
WITHDRAWN published on 2.11.1984
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GB 4739-1984
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WITHDRAWN published on 1.1.1984
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GB/T 4739-1995
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Methods for measuring the colorimetry of ceramic pigment
WITHDRAWN published on 6.7.1995
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GB 474-1996
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Preparation of coal sample
WITHDRAWN published on 14.6.1996
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GB/T 4740-1999
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Standard test method for compressive resistance ceramic materials
WITHDRAWN published on 12.8.1999
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GB/T 4741-1999
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Standard test method for bending strength of ceramic materials
WITHDRAWN published on 12.8.1999
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