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Standards GB - Chinese national standards - Page 5904
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 18608-2001
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Standard test methods for determination of iron, nickel, sodium, and vanadium in crude oil by atomic absorption spectrometry
WITHDRAWN published on 30.12.2001
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GB/T 18609-2001
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Standard test method for acid number of crude oil by potentiometric titration
WITHDRAWN published on 30.12.2001
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GB/T 18610-2001
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Crude oil—Determination of carbon residue—Conradson method
WITHDRAWN published on 30.12.2001
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GB/T 18611-2001
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Test method for simplified distillation of crude oil
WITHDRAWN published on 30.12.2001
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GB/T 18612-2001
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Determination of organic chloride content in crude oil by combustion and microcoulometry
WITHDRAWN published on 30.12.2001
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GB 18613-2002
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Limited values of energy efficiency and evaluating values of energy conservation of small and medium three-phase asynchronous motors
WITHDRAWN published on 10.1.2002
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GB 18613-2006
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Minimum allowable values of energy efficiency and the energy efficiency grades for small and medium three-phase asynchronous motors
WITHDRAWN published on 12.12.2006
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GB 18613-2012
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Minimum allowable values of energy efficiency and energy efficiency grades for small and medium three-phase asynchronous motors
WITHDRAWN published on 11.5.2012
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GB 18614-2002
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Fire extinguishing agent—Heptafluoropropane (HFC227ea)
WITHDRAWN published on 10.1.2002
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GB/T 18618-2002
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Geometrical product specification (GPS)—Surface texture—Profile method—Motif parameters
WITHDRAWN published on 10.1.2002
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