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Standards GB - Chinese national standards - Page 5757
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 12604.7-2014
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Non-destructive testing—Terminology—Terms used in leak testing
WITHDRAWN published on 6.5.2014
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GB/T 12604.8-1995
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Terminology for nondestructive testing—Neutron testing
WITHDRAWN published on 20.12.1995
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GB/T 12604.9-1996
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Terminology for nondestructive testing—Infrared testing
WITHDRAWN published on 10.4.1996
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GB/T 12604.9-2008
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Non-destructive testing—Terminology—Terms used in infrared testing
WITHDRAWN published on 26.9.2008
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GB/T 12605-1990
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Methods of radiographic inspection and quality classification of circumferential fusion welded butt joints in steel pipes and tubes
WITHDRAWN published on 18.12.1990
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GB/T 12606-1999
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Steel tubes—The testing method of magnetic flux leakage
WITHDRAWN published on 1.11.1999
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GB 12607-1990
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Designation for the design of thermal spraying coatings
WITHDRAWN published on 18.12.1990
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GB/T 12607-2003
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Designation of Thermal Spraying Coatings
WITHDRAWN published on 29.10.2003
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GB 12608-1990
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Designation for the materials for thermal spraying coatings
WITHDRAWN published on 18.12.1990
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GB/T 12609-1990
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Electrodeposited metallic coatings and related finishes—Sampling procedures for inspection by attributes
WITHDRAWN published on 18.12.1990
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