ASTM International - ASTM D4670-97
Standard Test Method for Polyurethane Raw Materials Determination of Suspended Matter In Polyols
|Publication Date:||10 November 1997|
1.1 This test method covers a procedure for visual inspection to determine the presence of insoluble foreign material in polyols.
1.2 This standard does not purport to address all of the safety problems, 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-There is no similar or equivalent ISO standard.