State system for ensuring the uniformity of measurements. Procedures of measurement of mass fraction of the parent substance of reagents and superpure substances by titrimetric methods. General requirements

This standard establishes the general requirements for the titration measurement of the mass fraction of ultra-pure substances and reagents. It outlines the procedures and criteria necessary to ensure the uniformity of national measurements. The document provides guidelines for the accurate determination of mass fractions through titration methods. It covers the essential aspects of measurement processes, including calibration, equipment specifications, and data interpretation. The standard is structured to support consistent and reliable measurement practices across relevant industries. It defines the fundamental principles and operational standards that must be followed during titration analysis. The content is intended to serve as a reference for laboratories and organizations involved in the measurement of ultra-pure substances and reagents.