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Standards GB - Chinese national standards - Page 6147
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 20975.10-2008
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Methods for chemical analysis of aluminium and aluminium alloys—Part 10:Determination of tin content
WITHDRAWN published on 31.3.2008
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GB/T 20975.11-2008
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Methods for chemical analysis of aluminium and aluminium alloys—Part 11:Determination of lead content—Flame atomic absorption spectrometric method
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GB/T 20975.12-2008
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Methods for chemical analysis of aluminium and aluminium alloys—Part 12:Determination of titanium content
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GB/T 20975.13-2008
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Methods for chemical analysis of aluminium and aluminium alloys—Part 13:Determination of vanadium content—N-benzoyl-Nphenylhydroxylamine spectrophotometric method
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GB/T 20975.14-2008
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Methods for chemical analysis of aluminium and aluminium alloys—Part 14:Determination of nickel content
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GB/T 20975.15-2008
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Methods for chemical analysis of aluminium and aluminium alloys—Part 15:Determination of boron content
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GB/T 20975.16-2008
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Methods for chemical analysis of aluminium and aluminium alloys—Part 16:Determination of magnesium
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GB/T 20975.17-2008
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Methods for chemical analysis of aluminium and aluminium alloys—Part 17:Determination of strontium content—Flame atomic absorption spectrometric method
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GB/T 20975.18-2008
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Methods for chemical analysis of aluminium and aluminium alloys—Part 18:Determination of chromium content
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GB/T 20975.19-2008
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Methods for chemical analysis of aluminium and aluminium alloys—Part 19:Determination of zirconium content
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