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ASTM D2572-97(2010)

Historical Revision

Standard Test Method for Isocyanate Groups in Urethane Materials or Prepolymers

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1.1 This test method covers the determination of the isocyanate group (NCO) content of a urethane intermediate or prepolymer.

1.2 The values stated in SI units are to be regarded as standard. No other units of measurement are included in this standard.

1.3 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. For specific hazard statements, see Section 8.

The percent NCO is used to establish unit ratios for stoichiometric reactions with co-reactants.

SDO ASTM: ASTM International
Document Number D2572
Publication Date Dec. 1, 2010
Language en - English
Page Count 2
Revision Level 97(2010)
Supercedes
Committee D01.33
Publish Date Document Id Type View
Oct. 1, 2019 D2572-19 Revision
Dec. 1, 2010 D2572-97R10 Revision
Nov. 10, 1997 D2572-97 Revision
July 10, 2003 D2572-97R03E01 Reaffirmation