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ASTM D6437-99

Historical Revision

Standard Test Method for Polyurethane Raw Materials: Alkalinity in Low-Alkalinity Polyols (Determination of CPR Values of Polyols)

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1.1 This test method covers measuring alkalinity in low-alkalinity (less than 0.002 meq/g basicity) polyols. This alkalinity is often expressed as CPR (controlled polymerization rate) of polyether polyols. This test method is not applicable to amine-based polyols.

1.2 The values stated in SI units are to be regarded as the 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.

Note 1-There is no similar or equivalent ISO standard.


SDO ASTM: ASTM International
Document Number D6437
Publication Date July 10, 1999
Language en - English
Page Count 2
Revision Level 99
Supercedes
Committee D20.22
Publish Date Document Id Type View
March 15, 2022 D6437-22 Revision
Nov. 1, 2010 D6437-05R10E01 Revision
March 1, 2005 D6437-05 Revision
July 10, 1999 D6437-99 Revision
April 1, 2016 D6437-05R16E01 Reaffirmation