To determine the oil or finish content of wool or synthetic samples by solvent percolation and evaporation. Suitable for fiber, yarn or fabric. Available with 1, 2 or 3 extraction units. To be fully compliant with Edana method ERT 155, it needs a large extraction tube- 12mm (OD), 10 mm (ID). (Full title of new method is: DETERMINATION OF ACETONE EXTRAC - TABLE FINISH ON NONWOVENS.)