ASTM F331-13

1.1 This test method covers the determination of nonvolatile matter, that is, residue on evaporation, in solvent extract from aerospace components, using a rotary flash evaporator.

1.2 The procedure for extraction from components is described in practices such as Practice . Before subjecting the extract to the following method, it should be processed to remove the insoluble particulate in accordance with Practice (). Particle count analysis of the removed particulate may then be performed in accordance with Test Method . If particulate is not removed from the extract prior to performing this method, this should be noted on the test report.

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

1.4 This standard does not purport to address all of 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.