The Measurement Uncertainty Assessment of Iodimetric Method To Determine The Amount of Copper in Crude Copper

By taking iodimetric method to determine the amount of copper in Crude Copper(ys t 521.1-2009)for example,copper uncertainty assessment for the measurement results is made.the main source measurements uncertainty,includes sample quality,preparing of standard solution and standard titration and samples tested based on quantification of the degree of uncertainty in measurement,the expansive uncertainty of measurement is obfained by mulfiplying the standard uncertainty of measurement with the expansion uncertainty is 0.26% when the synthesized standard uncertainty is 0.13%.