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Standards GB - Chinese national standards - Page 7139
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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GBJ 242-1982
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Specifications for construction and acceptance of heating and sanitary installation
WITHDRAWN published on 1.1.1982
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GB/T 242-1982
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Method for flaring test on tubes of metals
WITHDRAWN published on 1.1.1982
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GBN 242-1984
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WITHDRAWN published on 1.1.1984
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GB/T 242-1997
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Metallic materials—Tube—Drift expanding test
WITHDRAWN published on 11.11.1997
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GB/T 2420-1981
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Rapid test for sulphate resistance of cement
WITHDRAWN published on 23.1.1981
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GB/T 24202-2009
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Carbon steel wire for optical fiber cable tension members
WITHDRAWN published on 8.7.2009
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GB/T 24203-2009
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Carbon materials—Determination of the true density or true poroous—Boiling method
WITHDRAWN published on 8.7.2009
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GB/T 24204-2009
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Iron ores for blast furnace feedstocks - Determination of low-temperature reduction-disintegration indices by dynamic method
WITHDRAWN published on 8.7.2009
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GB/T 2421-1999
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Environmental testing for electric and electronic products—Part 1:General and guidance
WITHDRAWN published on 10.10.1999
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GB/T 2421.1-2008
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Environmental testing for electric and electronic products—General and guidance
WITHDRAWN published on 30.12.2008
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