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Standards GB - Chinese national standards - Page 7522
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 3306.7-1982
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Measurements of the electrical properties of low-power electronic tubes--Methods of measurement of transconductance
WITHDRAWN published on 1.1.1982
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GB/T 3306.8-1982
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Measurements of the electrical properties of low-power electronic tubes--Methods of measurement of amplification factor
WITHDRAWN published on 1.1.1982
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GB/T 3306.9-1982
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Measurements of the electrical properties of low-power electronic tubes--Methods of measurement of internal resistance
WITHDRAWN published on 1.1.1982
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GB 3308-1982
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Standard for type GF pulverized coal feeder
WITHDRAWN published on 1.1.1982
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GB/T 3309-1989
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Mechanical test at ambient temperature for high-voltage switchgear
WITHDRAWN published on 22.2.1989
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GB 331-1981
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Cord fabric for cart tires
WITHDRAWN published on 1.1.1981
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GB 3310-1982
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WITHDRAWN published on 1.1.1982
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GB/T 3310-1999
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Copper alloy bars-Ultrasonic testing method
WITHDRAWN published on 23.7.1999
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GB/T 3310-2010
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Ultrasonic testing method of copper and copper alloy bars
WITHDRAWN published on 10.1.2011
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GB/T 3311-1982
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Determination of cerium in cerium-tungsten alloys—oxidation-reduction volumetry
WITHDRAWN published on 22.12.1982
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