ASTM International - ASTM D7252-06(2011)e1

Standard Test Method for Polyurethane Raw Materials: Determination of Monomer and Isomers in Isocyanates

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Organization: ASTM International
Publication Date: 1 September 2011
Status: historical
Page Count: 5
ICS Code (Test conditions and procedures in general): 19.020
ICS Code (Raw materials for rubber and plastics in general): 83.040.01
ICS Code (Cellular materials): 83.100
significance And Use:

This test method can be used for research or for quality control to characterize isocyanates used in polyurethane products.

scope:

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 (meththylene phenylisocyanate) (PMDI). (See Note 1.)

1.2 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 known ISO equivalent to this standard.

Document History

April 15, 2017
Standard Test Method for Polyurethane Raw Materials: Determination of Monomer and Isomers in Isocyanates
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)...
ASTM D7252-06(2011)e1
September 1, 2011
Standard Test Method for Polyurethane Raw Materials: Determination of Monomer and Isomers in Isocyanates
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)...
April 1, 2006
Standard Test Method for Polyurethane Raw Materials: Determination of Monomer and Isomers in Isocyanates
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-bis-(4-phenylisocyanate)...
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