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ASTM D7252-06

Historical Revision

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

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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-bis-(4-phenylisocyanate) (MDI) and polymethylene polyphenylisocyanates (PMDI). (See Note 1.)

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.


SDO ASTM: ASTM International
Document Number D7252
Publication Date April 1, 2006
Language en - English
Page Count 5
Revision Level 06
Supercedes
Committee D20.22
Publish Date Document Id Type View
July 1, 2022 D7252-22 Revision
April 15, 2017 D7252-17 Revision
April 1, 2006 D7252-06 Revision
Sept. 1, 2011 D7252-06R11E01 Reaffirmation