ASTM D7252-17
- Standard Test Method for Polyurethane Raw Materials: Determination of Monomer and Isomers in Isocyanates
- standard by ASTM International, 04/15/2017
- Category: ASTM
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1.1 This test method determines the percent by weight of monomeric isomers and total monomer in crude or modified isocyanates. The test method is applicable to methylene di(phenylisocyanate) (MDI) and polymeric (methylene phenylisocyanate) (PMDI). (See Note 1.)
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