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Standards GB - Chinese national standards - Page 4727
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 4698.10-2020
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Methods for chemical analysis of titanium sponge, titanium and titanium alloys—Part 10Determination of chromium content—Ammonium ferrous sulfate titration and inductively coupled plasma atomic emission spectrometrywith vanadium
Standard published on 6.3.2020
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GB/T 4698.11-1996
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Sponge titaniumtitanium and titanium alloys--Determination of chromium content in the absence of Vanadium--Ammonium ferrous sulfate titration method
Standard published on 4.11.1996
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GB/T 4698.12-2017
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Methods for chemical analysis of titanium sponge, titanium and titanium alloys—Part 12Determination of vanadium content—Ammonium ferrous sulfate titration and inductively coupled plasma atomic emission spectrometry
Standard published on 29.9.2017
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GB/T 4698.13-2017
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Methods for chemical analysis of titanium sponge,titanium and titanium alloys—Part 13Determination of zirconium content—EDTA complexometric titration and inductively coupled plasma atomic emission spectrometry
Standard published on 29.9.2017
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GB/T 4698.14-2011
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Methods for chemical analysis of titanium sponge,titanium and titanium alloys - Determination of carbon content
Standard published on 12.5.2011
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GB/T 4698.15-2011
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Methods for chemical analysis of titanium sponge,titanium and titanium alloys - Determination of hydrogen content
Standard published on 12.5.2011
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GB/T 4698.17-2019
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Methods for chemical analysis of titanium sponge, titanium and titanium alloys—Part 17:Determination of magnesium content—Flame atomic absorption spectrometry
Standard published on 4.6.2019
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GB/T 4698.18-2017
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Methods for chemical analysis of titanium sponge, titanium and titanium alloys—Part 18Determination of tin content—Flame atomic absorption spectrometry
Standard published on 29.9.2017
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GB/T 4698.19-2017
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Methods for chemical analysis of titanium sponge, titanium and titanium alloys—Part 19Determination of molybdenum content—Thiocyanate-differential spectrophotometry
Standard published on 29.9.2017
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GB/T 4698.2-2011
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Methods for chemical analysis of titanium sponge,titanium and titanium alloys - Determination of iron content
Standard published on 12.5.2011
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