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Standards GB - Chinese national standards - Page 7728
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 9859-1988
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Method for processing sensitometry strip of black-and-white photographic materials
WITHDRAWN published on 20.9.1988
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GB/T 986-1988
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Basic forms and sizes of weld grooves for submerged arc welding
WITHDRAWN published on 25.6.1988
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GB/T 9861-1988
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Method for determining the resistance of photographic films to abrasion during processing
WITHDRAWN published on 20.9.1988
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GB/T 9864-1988
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Method for determination of silver in photographic films, papers, emulsions, fixing baths, effluents, sludges or residues
WITHDRAWN published on 20.9.1988
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GB/T 9865.1-1996
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Rubber, vulcanized or thermoplastic—Preparation of samples and test pieces—Part1:Physical tests
WITHDRAWN published on 28.10.1996
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GB/T 9867-1988
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Rubber—Determination of abrasion resistance using a rotating cylinderical drum device
WITHDRAWN published on 20.9.1988
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GB/T 9868-1988
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Rubber—General directions for achieving elevated or subnormal temperatures for test purposes
WITHDRAWN published on 20.9.1988
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GB/T 9869-1997
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Rubber—Measurement of vulcanization characteristics with the oscillating disc curemeter
WITHDRAWN published on 26.9.1997
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GB/T 987-1991
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Belt conveyors—Basic parameters and dimensions
WITHDRAWN published on 4.2.1991
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GB/T 9870-1988
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Elastomers—General requirements for dynamic testing
WITHDRAWN published on 20.9.1988
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