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Standards GB - Chinese national standards - Page 5865
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 13255.8-1991
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Caprolactam for industrial use—Determination of cyclohexanone oxime content
WITHDRAWN published on 9.11.1991
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GB/T 13256-1991
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Urea for industrial use -Determination of sulphate conent -Visible turbidimetric method
WITHDRAWN published on 1.1.1991
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GB/T 13257-1991
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Urea for industrial use - Determination of ash - Weight method
WITHDRAWN published on 1.1.1991
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GB/T 13258-1991
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Technical phosphorus pentasulfide
WITHDRAWN published on 9.11.1991
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GB/T 13258-2008
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Technical phosphorus pentasulfide
WITHDRAWN published on 4.6.2008
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GB/T 13259-1991
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High pressure sodium lamps
WITHDRAWN published on 29.10.1991
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GB/T 13259-2005
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High pressure sodium lamps
WITHDRAWN published on 18.1.2005
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GB 13260-1991
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Typs and dimensions of lampholders for tubular fluorescent lamps and starterholders
WITHDRAWN published on 29.10.1991
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GB/T 13261-1991
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Gauges of lampholders for tubular fluorescent lamps and starterholders
WITHDRAWN published on 29.10.1991
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GB/T 13262-1991
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Single sampling procedures and tables for inspection having desired operating characteristics by attributes for percent nonconforming
WITHDRAWN published on 11.11.1991
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