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Standards GB - Chinese national standards - Page 6180
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 14999.2-2012
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Test methods for superalloys - Part 2: Verification of transverse macro-structures and defect by etch
WITHDRAWN published on 5.11.2012
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GB/T 14999.3-1994
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Methods of longitudinal fracture test for heat-resisting superalloy bars
WITHDRAWN published on 4.4.1994
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GB/T 14999.3-2012
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Test methods for superalloys - Part 3: Verification of longitudinal fracture of bars
WITHDRAWN published on 5.11.2012
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GB/T 14999.4-1994
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Methods of examining micro-structures for heat-resisting superalloys
WITHDRAWN published on 4.4.1994
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GB/T 14999.4-2012
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Test methods for superalloys - Part 4: Determination of characterizing banding grains and primary carbides distribution of superalloy rollings
WITHDRAWN published on 5.11.2012
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GB/T 14999.5-1994
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Photomicrographs and photomacrographs for evaluating of heat-resisting superalloys
WITHDRAWN published on 4.4.1994
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GB/T 14999.6-2010
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Test methods for characterizing duplex grain sizes and primary carbides distribution of superalloy forgings
WITHDRAWN published on 23.12.2010
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GBJ 15-1988
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Specifications for the design of water supply and drainage in buildings
WITHDRAWN published on 1.1.1988
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GB/T 15-1988
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Cup head nib bolts with large head
WITHDRAWN published on 24.6.1988
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GB 150-1998
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Steel pressure vessels
WITHDRAWN published on 20.3.1998
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