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Standards GB - Chinese national standards - Page 7971
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 3306.3-1982
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Measurements of the electrical properties of low-power electronic tubes--Methods of measurement of current of grid having negative potential
WITHDRAWN published on 1.1.1982
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GB/T 3306.4-1982
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Measurements of the electrical properties of low-power electronic tubes--Methods of measurement of cathode current
WITHDRAWN published on 1.1.1982
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GB/T 3306.5-1982
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Measurements of the electrical properties of low-power electronic tubes--Methods of measurement of emission current from cathode
WITHDRAWN published on 1.1.1982
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GB/T 3306.6-1982
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Measurements of the electrical properties of low-power electronic tubes--Methods of test and measurement under rectifying conditions
WITHDRAWN published on 1.1.1982
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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WITHDRAWN published on 1.1.1982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/T 33061.1-2016
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Plastics—Determination of dynamic mechanical properties—Part 1: General principles
WITHDRAWN published on 13.10.2016
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GB/T 33061.10-2016
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Plastics—Determination of dynamic mechanical properties—Part 10: Complex shear viscosity using a parallel-plate oscillatory rheometer
WITHDRAWN published on 13.10.2016
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GB/T 33079-2016
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Continuous shiploader for bulk materials—Type and basic parameter
WITHDRAWN published on 13.10.2016
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