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ASTM International - ASTM D4877-19

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

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Organization: ASTM International
Publication Date: 1 August 2019
Status: active
Page Count: 3
ICS Code (Organic nitrogen compounds): 71.080.30
ICS Code (Auxiliary materials and additives for plastics): 83.040.30
significance And Use:

5.1 This test method can be used for research or for quality control to characterize isocyanates used in polyurethane products.

5.2 For toluene diisocyanate, results from this test... View More

scope:

1.1 This 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).

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

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.

Document History

ASTM D4877-19
August 1, 2019
Standard Test Method for Polyurethane Raw Materials: Determination of APHA Color in Isocyanates
1.1 This 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...
August 1, 2014
Standard Test Method for Polyurethane Raw Materials: Determination of APHA Color in Isocyanates
1.1 This 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...
January 1, 2010
Standard Test Method for Polyurethane Raw Materials: Determination of APHA Color in Isocyanates
1.1 This 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...
March 1, 2004
Standard Test Method for Polyurethane Raw Materials: Determination of APHA Color in Isocyanates
1.1 This 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...
July 10, 1998
Standard Test Method for Polyurethane Raw Materials Determination of APHA Color in Isocyanates
1.1 This 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 standards used....
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