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Standards GB - Chinese national standards - Page 8533
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 7139-1986
WITHDRAWN
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Determination of chlorine in vinyl chloride homopolymers and copolymers
WITHDRAWN published on 1.1.1986
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GB/T 7139-2002
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Plastics-Vinyl chloride homopolymers and copolymers—Determination of chlorine content
WITHDRAWN published on 24.9.2002
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GB/T 714-2000
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Structural steel for bridge
WITHDRAWN published on 25.10.2000
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GB/T 714-2008
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Structural steel for bridge
WITHDRAWN published on 6.12.2008
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GB 7140-1986
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Determination of water content of poly (ethylene terephthalate) granules
WITHDRAWN published on 1.1.1986
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GB/T 7141-1992
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Plastics—Methods of exposure to thermal air
WITHDRAWN published on 12.12.1992
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GB/T 7142-1986
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Determination of time-temperature limits of plastics after exposure to prolonged action of heat
WITHDRAWN published on 1.1.1986
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GB/T 7143-1986
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Methods for chemical analysis of silica sand for foundry
WITHDRAWN published on 30.12.1986
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GB/T 7143-2010
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Methods for chemical analysis of silica sand for foundry
WITHDRAWN published on 26.9.2010
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GB 7144-1999
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Colored cylinder mark for gases
WITHDRAWN published on 17.12.1999
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