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Standards GB - Chinese national standards - Page 5785
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 12935-1991
WITHDRAWN
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Energy consumption standard in operation of covered electrode furnace
WITHDRAWN published on 22.5.1991
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GB/T 12936.1-1991
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Solar energy—Thermal applications—Terminology part 1
WITHDRAWN published on 22.5.1991
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GB/T 12936.2-1991
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Solar energy—Thermal applications—Terminology Part 2
WITHDRAWN published on 22.5.1991
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GB 12937-1991
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Terms relating to coal petrology
WITHDRAWN published on 1.1.1991
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GB/T 12937-1995
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Terms relating to coal petrology
WITHDRAWN published on 12.6.1995
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GB/T 12939-1991
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Rim contours for industrial trucks
WITHDRAWN published on 22.5.1991
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GB/T 12939-2002
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Rims series for industrial vehicles
WITHDRAWN published on 24.9.2002
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GB/T 12939-2015
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Rims for industrial vehicles
WITHDRAWN published on 11.9.2015
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GB/T 1294-1993
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Chemical reagent—Tartaric acid
WITHDRAWN published on 1.3.1993
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GB 12940-1991
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Technical specification for silver-graphite electrical contacts
WITHDRAWN published on 6.6.1991
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