ASTM-D4662 2020(Redline)
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D4662-20 Standard Test Methods for Polyurethane Raw Materials: Determination of Acid and Alkalinity Numbers of Polyols (Redline)
| Published By | Publication Date | Number of Pages |
| ASTM | 2020 | 4 |
ASTM D4662-20
Redline Standard: Standard Test Methods for Polyurethane Raw Materials: Determination of Acid and Alkalinity Numbers of Polyols
ASTM D4662
Scope
1.1 These test methods measure the acidic and basic constituents in polyols and other materials of high acidity or alkalinity that are soluble in mixtures of toluene and ethyl alcohol. These test methods do not apply to polyethers. (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, health, and environmental practices and determine the applicability of regulatory limitations prior to use.
Note 1: There is no known ISO equivalent to this standard.
1.3 This international standard was developed in accordance with internationally recognized principles on standardization established in the Decision on Principles for the Development of International Standards, Guides and Recommendations issued by the World Trade Organization Technical Barriers to Trade (TBT) Committee.
Keywords
acidity; acid number; alkalinity number; polyols; acidity; acid number; alkalinity number; polyols;
ICS Code
ICS Number Code 83.040.30 (Auxiliary materials and additives for plastics)
DOI: 10.1520/D4662-20
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