his test method covers a procedure for visual inspection to determine the presence of insoluble foreign material in polyols. 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. Note 1 -There is no similar or equivalent ISO standard.
ANSI/ASTM D4670:1997 history
1997ANSI/ASTM D4670:1997 Urethane-Polyol Raw Materials, Determination of Suspended Matter, Method for Testing (08.03)