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Standards GB - Chinese national standards - Page 5873
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 13311-1991
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Boiler pressure parts—Mechanical test for welded joints
WITHDRAWN published on 13.12.1991
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GB/T 13312-1991
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The standard method of identification of degreasing degree on the steel surfaces before covering organic coatings (test paper method)
WITHDRAWN published on 13.12.1991
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GB/T 13313-1991
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Method of Shore hardness testing for mill rolls
WITHDRAWN published on 13.12.1991
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GB/T 13314-1991
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General specifications of forged steel working rolls for cold rolling
WITHDRAWN published on 13.12.1991
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GB/T 13315-1991
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Method of ultrasonic inspection for forged steel cold rolling working rolls
WITHDRAWN published on 13.12.1991
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GB/T 13316-1991
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Method of ultrasonic inspection for cast steel rolls
WITHDRAWN published on 13.12.1991
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GB/T 13317-1991
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Terminology for railway passenger transport
WITHDRAWN published on 11.12.1991
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GB/T 13317-2010
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Vocabulary for railway passenger transport
WITHDRAWN published on 10.11.2010
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GB 13318-1991
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General rules for safety and environmental conservation of forging production
WITHDRAWN published on 1.1.1991
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GB/T 13319-1991
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Geometrical tolerane--Positional tolerancing
WITHDRAWN published on 1.1.1991
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