GB/T 4702.17-2016 Chromium metal─Determination of oxygen, nitrogen and hydrogen content─Inert gas fusion thermal infrared detection method and conductivity method
This part of GB/T 4702 stipulates the determination of oxygen content and hydrogen content by infrared method; the determination of nitrogen content by thermal conductivity method. This section applies to the determination of oxygen content, nitrogen content and hydrogen content in metallic chromium. The measuring range of oxygen content (mass fraction): 0.010%~0.800%; the measuring range of nitrogen content (mass fraction): 0.001%~0.070%; the measuring range of hydrogen content (mass fraction): 0.001%~0.050%.
GB/T 4702.17-2016 Referenced Document
GB/T 4010 Ferroallys sampling and preparation of samples for chemical analysis
GB/T 6682 Water for analytical laboratory use.Specification and test methods
GB/T 4702.17-2016 history
2016GB/T 4702.17-2016 Chromium metal─Determination of oxygen, nitrogen and hydrogen content─Inert gas fusion thermal infrared detection method and conductivity method