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ISO 1017:1985 PDF
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Brown coals and lignites — Determination of acetone-soluble material (“resinous substances”) in the toluene-soluble extract
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.
| Edition | 1985 |
|---|---|
| Published Date | 1985 |
| Published By | International Standardization Organisation |
| Page Count | 2 |
