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Standards GB - Chinese national standards - Page 8449
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 6737-1986
WITHDRAWN
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WITHDRAWN published on 1.1.1986
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GB/T 6737-1997
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Rubber,raw—Determination of volatile-matter Content
WITHDRAWN published on 14.10.1997
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GB 6738-1986
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Safety requirements for indicating and recording electrical measuring instruments and their accessories
WITHDRAWN published on 31.7.1986
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GB 6739-1986
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Method of test for film hardness by pencil test
WITHDRAWN published on 1.1.1986
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GB/T 6739-1996
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Determination of film hardness by pencil test
WITHDRAWN published on 28.10.1996
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GB/T 6739-2006
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Paints and varnishes—Determination of film hardness by pencil test
WITHDRAWN published on 29.12.2006
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GB/T 674-1978
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Chemical reagents--Powdered copper oxide
WITHDRAWN published on 26.5.1978
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GB/T 674-2003
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Chemical reagent-Copper(II)oxide powder
WITHDRAWN published on 10.11.2003
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GB/T 6740-1986
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Paint media—Determination of volatile and non-volatile matter
WITHDRAWN published on 26.8.1986
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GB/T 6741-1986
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Producing films of uniform thickness of paints and varnishes on test panel(using spinner)
WITHDRAWN published on 26.8.1986
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