ASTM-D7252 › Historical Revision Information
Standard Test Method for Polyurethane Raw Materials: Determination of Monomer and Isomers in Isocyanates
The following bibliographic material is provided to assist you with your purchasing decision:
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-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 1There is no known ISO equivalent to this standard.
Keywords
chromatography; diisocyanate; HPLC; isocyanate; isomers; monomer; polymeric MDI; polyurethane raw materials; pure MDI; ICS Number Code 19.020 (Test conditions and procedures in general); 83.040.01 (Raw materials for rubber and plastics in general); 83.100 (Cellular materials)
To find similar documents by ASTM Volume:
To find similar documents by classification:
19.020 (Test conditions and procedures in general)
83.040.01 (Raw materials for rubber and plastics in general)
This document comes with our free Notification Service, good for the life of the document.
This document is available in either Paper or PDF format.
Document Number
ASTM-D7252-06
Revision Level
2006 EDITION
Status
Superseded
Modification Type
New
Publication Date
April 1, 2006
Document Type
Test Method
Page Count
5 pages
Committee Number
D20.22