Standard Test Method for Polyurethane Raw Materials: Determination of APHA Color in Isocyanates

Available format(s)

Hardcopy , PDF

Language(s)

English

Published date

01-08-2019

Publisher

American Society for Testing and Materials

1.1This test method measures the color of clear liquids. It is applicable only to materials whose color-producing bodies have light-absorption characteristics similar to those of the platinum cobalt color standards used.2 (See Test Method D1209 and Note 1.) Suitable isocyanates include toluene diisocyanate, and pure or modified monomeric methylene di(phenylisocyanate).

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

1.3This 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:This standard and ISO 6271-1 address the same subject matter, but differ in technical content.

1.4This 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.

Committee	D 20
DocumentType	Test Method
Pages	3
PublisherName	American Society for Testing and Materials
Status	Current
Supersedes	ASTM D 4877 : 2014

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