Evaluation of Uncertainty for Determination of Iron Content in Magnetite
YAO Yong-sheng
Abstract：This paper discusses the magnetic iron content in magnetite measurement result uncertainty influence degree, analyzed the main sources of the uncertainty of measurement results of components, and their calculation. Through the comparison, in the measurement process of magnetic iron content in magnetite, magnetic separation of magnetic iron process is repeated measurements do not determine the maximum influencing factors. The second is the standard potassium dichromate titration consumption volume of uncertainty measurement results caused by the impact of uncertainty. By measuring the national standard reference material GBW07272 that, when the measured magnetic iron content is 46.91%, the expanded uncertainty U=0.52%(k=2).
Keywords：magnetitemagnetic ironuncertainty
Publication Date：2013-01-01
Online Publishing Date：2025-08-15(First online date of this platform, not the publication date of the document)
Pages：3( 37-38,41 )