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Standards GB - Chinese national standards - Page 9059
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 7666-1987
WITHDRAWN
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Nomenclature and code for transducers
WITHDRAWN published on 20.4.1987
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GB 7667-1996
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The dose of X-rays leakage from electron microscope
WITHDRAWN published on 13.8.1996
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GB 7667-2003
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The dose of X-rays leakage from electron microscope
WITHDRAWN published on 20.11.2003
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GB 7668-1987
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Sheathed thermocouple materials
WITHDRAWN published on 1.1.1987
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GB 7669-1987
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Standard test method for sheathed thermocouple materials
WITHDRAWN published on 1.1.1987
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GB/T 767-1965
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Methods of measurement of value of dielectric loss tangent for power cables (high voltage alternating current bridge method)
WITHDRAWN published on 3.12.1965
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GB/T 7670-1987
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Electrodynamic test equipment for generating vibration--Methods of describing equipment characteristics
WITHDRAWN published on 21.3.1987
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GB 7671-1987
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Test target for camera lens
WITHDRAWN published on 1.1.1987
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GB/T 7672.1-1987
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Glass-fiber covered winding wires--Part 1:General
WITHDRAWN published on 16.4.1987
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GB/T 7672.2-1987
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Glass-fiber covered winding wires--Part 2:Double glass-fiber covered round wires
WITHDRAWN published on 16.4.1987
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