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Standards GB - Chinese national standards - Page 615
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 16484.9-2009
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Chemical analysis methods of rare earth chloride and light rare earth carbonate - Part 9: Determination of nickel oxide content - Flame atomic absorption spectrometry
Standard published on 30.10.2009
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GB/T 16485-2009
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General specification for lumber machine
Standard published on 12.5.2009
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GB/T 16489-1996
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Water quality--Determination ofsulfide--Methylene blue spectrophotometric method
Standard published on 1.8.1996
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GB/T 16491-2022
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Electronic universal testing machines
Standard published on 30.12.2022
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GB/T 16492-1996
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Optics and optical instruments -- Environmental requirements--General information definitionsclimatic zones and their parameters
Standard published on 13.8.1996
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GB/T 16493-1996
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Chemical reagent--Trisodium citrate dihydrate
Standard published on 22.8.1996
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GB/T 16493-2026
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Chemical reagent—Trisodium citrate dihydrate
Execute Date: september 2026
Standard published on 27.2.2026
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GB/T 16494-2013
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Chemical reagent—Xylene
Standard published on 31.12.2013
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GB/T 16496-1996
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Chemical reagent--Potassium sulfate
Standard published on 22.8.1996
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GB/T 16497-2007
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Surface active agents - Determination of storage stability of water-in-oil emulsion
Standard published on 13.8.2007
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