ISO 1017:1985Withdrawn

Brown coals and lignites — Determination of acetone-soluble material ("resinous substances") in the toluene-soluble extract

Charbons bruns et lignites — Détermination des matières solubles dans l'acétone de l'extrait au toluène soluble ("substances résineuses")

Abstract / scope

A sample of toluene-soluble extract from brown coal or lignite obtained by the procedure describes in ISO 975 is extracted with acetone at a temperature of 18 to 22 °C. The soluble fraction is filtered or centrifuged off and after evaporation of the solvent dried to constant mass. The percentage of acetone-soluble material is calculated from the mass of reidue after drying.

Life cycle

Replaces

ISO 1017:1975WithdrawnBrown coals and lignites — Determination of acetone-soluble material ("resinous substances") in the benzene extractInternational Standard · Published 1 Nov 1975 · ISO/TC 27

Replaced by

ISO 1017:2006WithdrawnBrown coals and lignites — Determination of acetone-soluble material ("resinous substance") in the benzene-soluble extractInternational Standard · Published 29 Nov 2006 · ISO/TC 27/SC 5