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Standards GB - Chinese national standards - Page 7465
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 8643-2002
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Lubricated metal-powder mixes—Determination of lubricant content—Modified Soxhlet extraction method
WITHDRAWN published on 23.8.2002
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GB/T 8644-2000
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Refined aluminium ingot for remelting
WITHDRAWN published on 9.6.2000
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GB/T 8645-1988
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Seamless aluminium cylinder produced by power spinning
WITHDRAWN published on 8.2.1988
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GB/T 8646-1998
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Fine aluminum-1% silicon wire for semiconductor lend-bonding
WITHDRAWN published on 15.7.1998
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GB/T 8647.1-1988
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Nickel--Determination of iron content--Sulfosalicylic acid spectrophotometric method
WITHDRAWN published on 8.2.1988
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GB/T 8647.10-1988
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Nickel--Determination of carbon content--Infra-red absorption method after high frequency induction furnace combustion
WITHDRAWN published on 8.2.1988
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GB/T 8647.2-1988
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Nickel--Determination of aluminium content--Chromazurol S-p-octyl polyethylene glycol phenyl ether-tetradecyl phridinium bromine mixed micellar solubilization spectrophotometric method
WITHDRAWN published on 8.2.1988
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GB/T 8647.3-1988
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Nickel--Determination of silicon content--Molybdenum blue spectrophotometric method
WITHDRAWN published on 8.2.1988
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GB/T 8647.4-1988
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Nickel--Determination of phosphorus content--Molybdenum blue spectrophotometric method
WITHDRAWN published on 8.2.1988
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GB/T 8647.5-1988
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Nickel--Determination of magnesium content--Flame atomic absorption spectrophotometric method
WITHDRAWN published on 8.2.1988
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