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Standards GB - Chinese national standards - Page 7509
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 3130-1982
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WITHDRAWN published on 1.1.1982
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GB/T 31309-2014
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Calculation of electoron vacancy number in nickel-base superalloys
WITHDRAWN published on 5.12.2015
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GB/T 31309-2020
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Calculation of electron vacancy number in cast superalloys
WITHDRAWN published on 2.6.2020
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GB/T 3131-2001
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Tin-lead solder
WITHDRAWN published on 29.5.2001
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GB/T 3132-1982
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Safety fuses
WITHDRAWN published on 28.5.1982
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GB 3133-1982
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WITHDRAWN published on 1.1.1982
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GB/T 3133-1982
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Brass wires for clocks
WITHDRAWN published on 28.5.1982
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GB 31335-2014
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The norm of the energy consumption per unit product of iron ore surface mining
WITHDRAWN published on 31.12.2014
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GB 31336-2014
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The norm of energy consumption per unit product of iron ore underground mining
WITHDRAWN published on 31.12.2014
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GB 31337-2014
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The norm of the energy consumption per unit ore of iron ore dressing
WITHDRAWN published on 31.12.2014
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