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Standards GB - Chinese national standards - Page 7390
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 9443-1988
WITHDRAWN
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Methods of liquid penetrant testing and classification of indication for steel castings
WITHDRAWN published on 25.6.1988
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GB/T 9443-2007
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Penetrant testing for steel castings
WITHDRAWN published on 23.8.2007
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GB/T 9444-1988
WITHDRAWN
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The methods for magnetic particle testing and for specifying quality levels of steel castings
WITHDRAWN published on 25.6.1988
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GB/T 9444-2007
WITHDRAWN
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Magnetic particle testing for steel castings
WITHDRAWN published on 23.8.2007
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GB/T 9445-1999
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Qualification and certification for nondestructive testing personnel
WITHDRAWN published on 23.11.1999
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GB/T 9445-2005
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Non-destructive testing—Qualification and certification of personnel
WITHDRAWN published on 22.9.2005
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GB/T 9445-2008
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Non-destructive testing—Qualification and certification of personnel
WITHDRAWN published on 13.5.2008
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GB/T 9446-1988
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Welding—Cold cracking test method using implants
WITHDRAWN published on 25.6.1988
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GB/T 9447-1988
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Test method for fatigue crack growth rates of welded joints
WITHDRAWN published on 25.6.1988
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GB/T 945-1976
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Screwscross recessedthin raised cheese head
WITHDRAWN published on 13.10.1976
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