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Standards GB - Chinese national standards - Page 5790
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 12964-2003
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Monocrystalline silicon polished wafers
WITHDRAWN published on 16.6.2003
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GB 12965-1991
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Monocrystalline silicon as cut slices and lapped slices
WITHDRAWN published on 1.1.1991
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GB/T 12965-1996
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Monocrystalline silicon as cut slices and lapped slices
WITHDRAWN published on 4.11.1996
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GB/T 12965-2005
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Monocrystalline silicon as cut slices and lapped slices
WITHDRAWN published on 19.9.2005
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GB/T 12966-1991
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The method for electrical conductivity measurement of aluminium alloys by use of eddy current
WITHDRAWN published on 4.6.1991
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GB/T 12966-2008
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The method for determining aluminum alloys conductivity using eddy current
WITHDRAWN published on 17.6.2008
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GB/T 12967.1-1991
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Anodizing of aluminium and aluminium alloys—Measurmeent of mean specific adrasion resistance of anodic oxidation coatings with an adrasive jet test apparatus
WITHDRAWN published on 4.6.1991
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GB/T 12967.1-2008
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Test methods for anodic oxidation coatings of aluminium and aluminium alloys—Part 1:Measurement of mean specific abrasion resistance of anodic oxidation coatings with an abrasive jet test apparatus
WITHDRAWN published on 9.6.2008
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GB/T 12967.2-1991
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Anodizing of aluminium and aluminium alloys—Measurement of wear resistance and wear index of anodic oxidation coatings with an abrasive wheel wear test apparatus
WITHDRAWN published on 4.6.1991
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GB/T 12967.2-2008
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Test methods for anodic oxidation coatings of aluminium and aluminium alloys—Part 2:Measurement of wear resistance and wear index of anodic oxidation coatings with an abrasive wheel wear test apparatus
WITHDRAWN published on 9.6.2008
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