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Standards GB - Chinese national standards - Page 5788
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 12766-1991
WITHDRAWN
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Animal fats and oils—Determination of melting point
WITHDRAWN published on 26.3.1991
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GB 12768-1991
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Electrical aluminium ingots for remelting
WITHDRAWN published on 27.3.1991
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GB/T 12769-1991
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Titanium-clad copper bar
WITHDRAWN published on 27.3.1991
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GB/T 12769-2003
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Titanium-clad copper bar
WITHDRAWN published on 3.11.2003
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GB 1277-1977
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WITHDRAWN published on 1.1.1977
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GB/T 1277-1994
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Chemical reagent—Ammonium bromide
WITHDRAWN published on 11.3.1994
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GB/T 12770-1991
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Welded stainless steel tubes for machine structure
WITHDRAWN published on 22.3.1991
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GB/T 12770-2002
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Welded stainless steel tubes for machine structures
WITHDRAWN published on 11.9.2002
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GB/T 12770-2012
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Welded stainless steel tubes for mechanical structures
WITHDRAWN published on 5.11.2012
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GB/T 12771-1991
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Welded stainless steel pipes for liquid delivery
WITHDRAWN published on 1.1.1991
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