Long-term stability of measurements of the elemental composition of steel using a vacuum atomic emission spectrometer «Grand-Expert»
https://doi.org/10.26896/1028-6861-2019-85-1-II-135-138
Abstract
A study of the repeatability and long-term stability of elemental content measurements in a UG20 standard sample using a vacuum atomic emission spectrometer «Grand-Expert» was carried out on time scales of 10 min and 1 h. The values of standard and expanded uncertainty of the results of carbon, chromium, manganese, nickel and silicon determination which characterize the repeatability and long-term stability of measurements were calculated. It has been shown that a vacuum atomic emission spectrometer «Grand-Expert» provides determination of the content of alloying elements in steel with a relative expanded uncertainty of 1 – 2% whereas measurements of carbon content are characterized by higher relative expanded uncertainty of about 3%.
About the Author
I. N. Kuropyatnik
Technological Design Institute of Scientific Instrument Engineering of the Russian Academy of Sciences
Russian Federation
Novosibirsk
Russian Federation
Novosibirsk
References
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Review
For citations:
Kuropyatnik I.N. Long-term stability of measurements of the elemental composition of steel using a vacuum atomic emission spectrometer «Grand-Expert». Industrial laboratory. Diagnostics of materials. 2019;85(1(II)):135-138. (In Russ.) https://doi.org/10.26896/1028-6861-2019-85-1-II-135-138
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