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Standards GB - Chinese national standards - Page 5603
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 12306-1990
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Matallic coatings--Electrodeposited silver and silver alloy coatings for engineering purposes
WITHDRAWN published on 1.1.1990
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GB 12307.1-1990
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Metallic coatings--Test methods for electrodeposited silver and silver alloy coatings--Part 1: Determination of coating thickness
WITHDRAWN published on 1.1.1990
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GB 12307.2-1990
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Metallic coatings--Test methods for electrodeposited silver and silver alloy coatings--Part 2: Adhesion tests
WITHDRAWN published on 1.1.1990
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GB/T 12307.3-1997
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Metallic coatings--Test methods for electrodeposited silver and silver alloy coatings. Part 3: Determination of the presence of residual salts
WITHDRAWN published on 27.6.1997
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GB/T 12308-1990
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Specification for package carton of canned foods
WITHDRAWN published on 9.4.1990
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GB/T 1231-1991
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Specifications of high strength bolts with large hexagon head, large hexagon nuts, plain washers for steel structures
WITHDRAWN published on 22.4.1991
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GB/T 1231-2006
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Specifications of high strength bolts with large hexagon head,large hexagon nuts,plain washers for steel structures
WITHDRAWN published on 27.3.2006
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GB/T 12310-1990
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Sensory analysis method—Paired comparison test
WITHDRAWN published on 10.4.1990
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GB/T 12311-1990
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Sensory analysis method—Triangular test
WITHDRAWN published on 10.4.1990
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GB/T 12312-1990
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Sensory analysis—Determination of sensitivity of taste
WITHDRAWN published on 10.4.1990
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