Brown coals, hard coals and anthracites. General requirements for methods of analysis

This standard establishes general requirements for analytical methods used in the determination of brown coal, hard coal, and anthracite. It outlines procedures for sampling, preparation of test samples, and execution of analytical tests. The document provides guidance on the selection and application of appropriate analytical techniques to ensure consistency and accuracy in coal analysis. It also includes specifications for equipment, reagents, and calibration procedures. The standard is designed to support laboratories in maintaining quality control and ensuring reliable results in coal characterization. It covers fundamental principles and practices that are applicable across various analytical methods used in the coal industry.