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Standards GB - Chinese national standards - Page 7244
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 2513-2004
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Food additive—Potassium permanganate
WITHDRAWN published on 9.4.2004
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GB/T 25138-2010
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Standard sand for checking foundry binder
WITHDRAWN published on 26.9.2010
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GB/T 25139-2010
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Ceramic foam filter for foundry
WITHDRAWN published on 26.9.2010
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GB 2514-1981
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WITHDRAWN published on 1.1.1981
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GB/T 2514-1993
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Hydraulic fluid power—Four-port directional control valves—Mounting surfaces
WITHDRAWN published on 16.10.1993
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GB/T 25141-2010
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Self-priming type rotodynamic pumps—Types and basic parameters
WITHDRAWN published on 26.9.2010
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GB/T 25144-2010
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Determination of coefficient of mean linear thermal expansion for vitreous and porcelain enamels
WITHDRAWN published on 26.9.2010
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GB 2515-1981
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Terminology for common screw thread
WITHDRAWN published on 1.1.1981
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GB/T 25156-2010
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General specifications of injection moulding machines for rubber and plastics
WITHDRAWN published on 26.9.2010
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GB/T 25157-2010
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Inspections methods of injection moulding machines for rubber and plastics
WITHDRAWN published on 26.9.2010
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