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Standards GB - Chinese national standards - Page 5503
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 11067.3-1989
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Silver—Determination of iron, lead and bismuth contents—Flame atomic absorption spectrometric method
WITHDRAWN published on 31.3.1989
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GB/T 11067.4-1989
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Silver—Determination of antimony content—2-(5-bromo-2-pyridylazo)-5-diethylaminophenol spectrophotometric method
WITHDRAWN published on 31.3.1989
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GB/T 11067.5-1989
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Silver—Determination of carbon content—Combustion-conductometric method
WITHDRAWN published on 31.3.1989
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GB/T 11067.6-1989
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Silver—Determination of sulphur content—Combustion-potassium iodate titrimetric method
WITHDRAWN published on 31.3.1989
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GB/T 11067.7-1989
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Silver—Determination of copper, bismuth, iron, lead, gold and antimony contents—Emission spectrometric method
WITHDRAWN published on 31.3.1989
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GB/T 11068-1989
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Gallium arsenide epitaxial layer—Determination of carrier concentration—Voltage-capacitance method
WITHDRAWN published on 31.3.1989
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GB/T 11069-1989
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High purity germanium dioxide
WITHDRAWN published on 31.3.1989
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GB/T 11069-2006
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High purity germanium dioxide
WITHDRAWN published on 18.7.2006
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GB/T 11070-1989
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Reduced germanium ingot
WITHDRAWN published on 31.3.1989
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GB/T 11070-2006
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Reduced germanium ingot
WITHDRAWN published on 18.7.2006
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