Standard Historical Last Updated: Sep 07, 2016 Track Document
ASTM D7253-06(2011)e1

Standard Test Method for Polyurethane Raw Materials: Determination of Acidity as Acid Number for Polyether Polyols

Standard Test Method for Polyurethane Raw Materials: Determination of Acidity as Acid Number for Polyether Polyols D7253-06R11E01 ASTM|D7253-06R11E01|en-US Standard Test Method for Polyurethane Raw Materials: Determination of Acidity as Acid Number for Polyether Polyols Standard new BOS Vol. 08.03 Committee D20
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Significance and Use

This test method is suitable for quality control, as a specification test, and for research. Acid numbers indicate the extent of any neutralization reaction of the polyol with acids. The results of this method measure batch-to-batch uniformity and are used as correction factors in calculating true hydroxyl numbers.

Scope

1.1 This test method measures the acidic constituents in polyether polyols and reports the results as acid number. The typical acid number range is 0-0.1 mg KOH/g sample. (See Note 1.)

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.

Note 1—There is no known ISO equivalent to this standard.

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Details
Book of Standards Volume: 08.03
Developed by Subcommittee: D20.22
Pages: 3
DOI: 10.1520/D7253-06R11E01
ICS Code: 83.080.20