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Standards GB - Chinese national standards - Page 8180
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 5120.1-1985
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WITHDRAWN published on 1.1.1985
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GB/T 5120.1-1995
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Methods for chemical analysis of blister copper--Determination of copper content
WITHDRAWN published on 17.10.1995
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GB 5120.2-1985
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WITHDRAWN published on 1.1.1985
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GB/T 5120.2-1995
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Methods for chemical analysis of blister copper--Determination of arsenic content
WITHDRAWN published on 17.10.1995
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GB 5120.3-1985
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WITHDRAWN published on 1.1.1985
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GB/T 5120.3-1995
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Methods for chemical analysis of blister copper--Determination of gold and silver contents
WITHDRAWN published on 17.10.1995
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GB 5120.4-1985
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WITHDRAWN published on 1.1.1985
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GB/T 5120.4-1995
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Methods for chemical analysis of blister copper--Determination of leadbismuth and antimony contents
WITHDRAWN published on 17.10.1995
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GB/T 5120.5-1985
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Methods for chemical analysis of bessemer copper--The flame atomic absorption spectrophotometric method for the determination of bismuth content
WITHDRAWN published on 24.4.1985
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GB/T 5120.6-1985
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Methods for chemical analysis of bessemer copper--The flame atomic absorption spectrophotometric method for the determination of lead content
WITHDRAWN published on 24.4.1985
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