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Standards GB - Chinese national standards - Page 7772
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 4346.1-2002
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Self-centring manually-operated chucks for machine tools—Part 1:Dimensions and specifications
WITHDRAWN published on 13.9.2002
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GB/T 4346.2-2002
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Self-centring manually-operated chucks for machine tools—Part 2:Acceptance test specifications(geometrical tests)
WITHDRAWN published on 13.9.2002
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GB 4347-1984
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3-jaw self-centering chucks--Testing of accuracy
WITHDRAWN published on 1.1.1984
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GB/T 4348.1-2000
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Sodium hydroxide for industrial use—Determination of sodium hydroxide and sodium carbonate content
WITHDRAWN published on 31.7.2000
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GB/T 4348.2-1984
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Sodium hydroxide for industrial use--Determination of sodium chloride content--Mercurimetric method
WITHDRAWN published on 13.4.1984
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GB/T 4348.2-2002
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Sodium hydroxide for industrial use—Determination of sodium chloride content—Mercurimetric method
WITHDRAWN published on 29.5.2002
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GB/T 4348.3-1984
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Sodium hydroxide for industrial use--Determination of iron content--o-phenanthroline photometric method
WITHDRAWN published on 13.4.1984
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GB/T 4348.3-2002
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Sodium hydroxide for industrial use—Determination of iron content-1,10—Phenanthroline photometric method
WITHDRAWN published on 29.5.2002
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GB 4349-1993
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Food additive—Ethyl butyrate
WITHDRAWN published on 15.2.1993
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GB 4349-2006
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Food additive—Ethyl butyrate
WITHDRAWN published on 1.9.2006
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