This International Standard specifies a reference method for determining the total sulfur content of hard coal, brown coals and lignites, and coke by the Eschka method.
ISO 334:2013 Referenced Document
ISO 1170 Coal and coke — Calculation of analyses to different bases*, 2020-09-09 Update
ISO 11722 Solid mineral fuels - Hard coal - Determination of moisture in the general analysis test sample by drying in nitrogen
ISO 13909-4 Hard coal and coke - Mechanical sampling - Part 4: Coal - Preparation of test samples*, 2016-07-01 Update
ISO 5068-1 Brown coals and lignites - Determination of moisture content - Part 1: Indirect gravimetric method for total moisture
ISO 5069-2 Brown coals and lignites; Principles of sampling; Part 2 : Sample preparation for determination of moisture content and for general analysis