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Standards GB - Chinese national standards - Page 7178
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/Z 24637.1-2009
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Geometrical Product Specifications(GPS)—General concepts—Part 1:Model for geometrical specification and verification
WITHDRAWN published on 15.11.2009
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GB/Z 24637.2-2009
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Geometrical Product Specifications(GPS)—General concepts—Part 2:Basic tenets,specifications,operators and uncertainties
WITHDRAWN published on 15.11.2009
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GB/Z 24638-2009
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Geometrical product specifications (GPS) - Linear and angular dimensioning and tolerancing: +/- limit specifications - Step dimensions, distances, angular sizes and radii
WITHDRAWN published on 15.11.2009
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GB 2464-1981
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Troilite and sulphur concentrates--Determination of arsenic content
WITHDRAWN published on 1.1.1981
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GB/T 24644-2009
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Testing method and performance requirement of falling object protective—Structures on agricultural and forestry tractors
WITHDRAWN published on 15.11.2009
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GB 2465-1981
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Troilite and sulphur concentrates--Determination of fluorine content
WITHDRAWN published on 1.1.1981
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GB 2466-1981
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Troilite and sulphur concentrates--Determination of copper content
WITHDRAWN published on 1.1.1981
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GB/T 2466.1-1996
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Pyrites and concentrate—Determination of copper content—Part 1:Flame atomic absorption spectrometric method
WITHDRAWN published on 25.10.1996
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GB/T 2466.2-1996
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Pyrites and concentrate—Determination of copper content—Part 2:Oscilloscopic polarography method
WITHDRAWN published on 25.10.1996
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GB/T 2466.3-1996
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Pyrites and concentrate—Determination of copper content—Part 3:BCO spectrophotometric method
WITHDRAWN published on 25.10.1996
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