ISO International Standard

This International Standard specifies a lead sulfate precipitation EDTA titrimetric method after acid decomposition for

determination of the lead content of lead sulfide concentrates.

The method is applicable to lead sulfide concentrates having lead content in the range 50 % (m/m) to 80%(m/m). The

method is not applicable to lead concentrates containing more than 1 % (m/m) of barium.