95.99 Withdrawal of Standard Nov 29, 2006
ISO
ISO/TC 27/SC 5 Methods of analysis
International Standard
73.040 Coals
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.
WITHDRAWN
ISO 1017:1975
WITHDRAWN
ISO 1017:1985
95.99
Withdrawal of Standard
Nov 29, 2006
PUBLISHED
ISO 1017:2006