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Standards GB - Chinese national standards - Page 5482
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 10723-1989
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Standard method for carbon black--Improving test reproducibility using ASTM reference blacks
WITHDRAWN published on 31.3.1989
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GB/T 10723-2002
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Standard method for carbon black—Improving test reproducibility using ASTM reference blacks
WITHDRAWN published on 29.5.2002
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GB/T 10724-1989
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Chemical reagent--General rules for the flameless(graphite furnace) atomic absorption spectrometry
WITHDRAWN published on 31.3.1989
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GB/T 10725-1989
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Chemical reagent--General rules for inductively coupled plasma atomic emission spectrometry
WITHDRAWN published on 31.3.1989
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GB/T 10726-1989
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Chemical reagent--General method for the determination of metals by solvent extraction followedby AAS
WITHDRAWN published on 31.3.1989
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GB/T 10727-1989
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Chemical reagent--Sodium diethyldithiocarbamate trihydrate
WITHDRAWN published on 31.3.1989
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GB/T 10728-1989
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Chemical reagent--Thymol phthalein
WITHDRAWN published on 31.3.1989
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GB/T 10729-1989
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Chemical reagent--Phenolphthalien
WITHDRAWN published on 31.3.1989
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GB 10730-1989
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Primary chemical—Potassium hydrogen phthalate
WITHDRAWN published on 31.3.1989
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GB 10731-1989
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Primary chemical—Potassium dichromate
WITHDRAWN published on 31.3.1989
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