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Standards GB - Chinese national standards - Page 8880
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 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WITHDRAWN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WITHDRAWN published on 23.8.2007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WITHDRAWN published on 23.11.1999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WITHDRAWN published on 22.9.2005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WITHDRAWN published on 13.5.2008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 9445-2015
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Non-destructive testing—Qualification and certification of NDT personnel
WITHDRAWN published on 10.12.2015
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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WITHDRAWN published on 25.6.1988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WITHDRAWN published on 25.6.1988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 9449-1988
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Testing method for cooling properties of quenching media
WITHDRAWN published on 1.1.1988
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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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GB/T 9450-1988
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Determination and verification of the effective depth of carburizod and hardened cases of steel parts
WITHDRAWN published on 25.6.1988
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