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Standards GB - Chinese national standards - Page 5888
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 13271-2001
WITHDRAWN
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Emission standard of air pollutants for coal-burning oil-burning gas-fired boiler
WITHDRAWN published on 12.11.2001
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GB/T 13272-1991
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Analytical method for 131I in water
WITHDRAWN published on 11.11.1991
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GB/T 13273-1991
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Analytical method for 131I in plant and animal thyroid gland
WITHDRAWN published on 11.11.1991
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GB/T 13274-1991
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Technical specification for general purposes axial fans
WITHDRAWN published on 6.11.1991
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GB/T 13275-1991
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Technical specification for general purposes centrifugal fans
WITHDRAWN published on 6.11.1991
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GB/T 13276-1991
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Intake filter silencers for displacement air compressors
WITHDRAWN published on 6.11.1991
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GB/T 13277-1991
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Compressed air for general use—Quality classes
WITHDRAWN published on 6.11.1991
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GB/T 13277.1-2008
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Compressed air—Part 1:Contaminants and purity classes
WITHDRAWN published on 28.8.2008
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GB/T 13278-1991
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Dry screw air compressor for general use—Specifications
WITHDRAWN published on 6.11.1991
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GB/T 13279-1991
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Stationary reciprocating piston air compressor for general use--Specifications
WITHDRAWN published on 6.11.1991
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