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Standards GB - Chinese national standards - Page 5770
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 12806-1991
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Laboratory glassware—One-mark volumetric flasks
WITHDRAWN published on 28.4.1991
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GB/T 12807-1991
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Laboratory glassware—Graduated pipettes
WITHDRAWN published on 28.4.1991
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GB/T 12808-1991
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Laboratory glassware—One-mark pipettes
WITHDRAWN published on 28.4.1991
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GB/T 12809-1991
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Laboratory glassware—Principles of design and construction of volumetric glassware
WITHDRAWN published on 28.4.1991
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GB/T 1281-1993
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Chemical reagent—Bromine
WITHDRAWN published on 1.3.1993
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GB/T 12810-1991
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Laboratory glassware—Volumetric glassware—Methods for use and testing of capacity
WITHDRAWN published on 28.4.1991
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GB/T 12812-1991
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Test method for tumbling friability of rigid cellular plastics
WITHDRAWN published on 28.4.1991
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GB/T 12813-1991
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Assembling specifications of couplers and draftgears for railway cars
WITHDRAWN published on 22.4.1991
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GB/T 12814-1991
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Axles for railway cars--Types and basic dimensions
WITHDRAWN published on 22.4.1991
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GB/T 12814-2002
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Axles for railway cars—Types and basic dimensions
WITHDRAWN published on 28.8.2002
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