ASTM-D7253 2022(Redline)

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D7253-22 Standard Test Method for Polyurethane Raw Materials: Determination of Acidity as Acid Number for Polyether Polyols (Redline)

Published By	Publication Date	Number of Pages
ASTM	2022	4

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Categories: 83.080.20 - Thermoplastic materials, ASTM

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Description

ASTM D7253-22

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

ASTM D7253

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.

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, 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.

1.4 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; hydroxyl number; polyether polyols;

ICS Code

ICS Number Code 83.080.20 (Thermoplastic materials)

DOI: 10.1520/D7253-22

Additional information

Standard Title	D7253-22 Standard Test Method for Polyurethane Raw Materials: Determination of Acidity as Acid Number for Polyether Polyols (Redline)
Published Code	ASTM
Publication Date	2022
Pages Count	4
ICS Codes	83.080.20 - Thermoplastic materials