Analytical Control and Certification of Secondary Raw Materials at OAO Shchelkovo Factory of Secondary Precious Metals

摘要

The article discusses the features of analytical control of secondary raw materials containing precious metals. The classification of such material is developed. The procedures of sampling and analysis in the certification of secondary precious metals are described. Special attention is paid to the certification regulations at the Shchelkovo Factory of Secondary Precious Metals, control of analytical accuracy, and application of statistical data in estimation of the raw material quality. It is mentioned that the analytical division of the Shchelkovo Factory of Secondary Precious Metals is a certified entity and provides sufficient quality of analytical control.