ISO 549:1981 PDF

Overview

ISO 549:1981 specifies a gravimetric analytical method to determine the combined water content (water of constitution) in manganese ores. The method separates water by heating a prepared test portion in a stream of dry air and collects the evolved water in absorbent traps. It is intended to be read in conjunction with ISO 4297 and used with appropriate sampling and sample preparation procedures (see and ).