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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 3488.1-2014
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HardmetalsMetallographic determination of microstructurePart 1Photomicrographs and description
WITHDRAWN published on 5.12.2014
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GB/T 3489-1983
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Hardmetals—Metallographic determination of porosity and uncombined carbon
WITHDRAWN published on 21.2.1983
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GB/T 3489-2015
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Hardmetals—Metallographic determination of porosity and uncombined carbon
WITHDRAWN published on 10.12.2015
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GB 349-1988
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Round nails for general uses
WITHDRAWN published on 1.1.1988
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GB 3490-1983
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WITHDRAWN published on 1.1.1983
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GB 3491-1983
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WITHDRAWN published on 1.1.1983
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GB/T 34912-2017
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Guide for energy saving design of industry boiler systems
WITHDRAWN published on 1.11.2017
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GB 34914-2017
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Minimum allowable value of water efficiency and water efficiency grades for reverse osmosis drinking water treatment purifiers
WITHDRAWN published on 1.11.2017
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GB 3492-1983
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WITHDRAWN published on 1.1.1983
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GB/T 34924-2017
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Guidelines for safety related risk assessment and risk reduction for low voltage equipment
WITHDRAWN published on 1.11.2017
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