1.1This test method covers the determination of the amount of extractable matter in samples of all forms of wool, except grease wool, that is extractable with a non-flammable vapor degreasing and cleaning solvent.

1.2This test method does not cover the determination of the amounts of different components in the extracted matter nor their identification.

1.3This test method is suitable for use with other animal fibers.

Note 1-The determination of extractable matter in yarns and in felts is covered in Test Methods D2257 and D461. For the determination of alcohol-extractable matter in oven-dry scoured wool, refer to Test Methods D584 and D1334.

1.4The values stated in SI units are to be regarded as the standard.

1.5This standard does not purport to address the safety concerns, if any, associated with its use. It is the responsibility of the user of this standard to establish appropriate safety and health practices and determine the applicability of regulatory limitations prior to use. See 5.4 and Note 3.