ASTM-D4890 2006(Redline)

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D4890-06 Standard Test Methods for Polyurethane Raw Materials: Determination of Gardner and APHA Color of Polyols (Redline)

Published By	Publication Date	Number of Pages
ASTM	2006	5

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Description

Significance and Use

These test methods are suitable for quality control, as specification tests, and for research. Color is an important property of urethane products.

1. Scope

1.1 These test methods measure visually the color of clear polyester and polyether liquids. They apply only to materials whose colors have light-absorption characteristics similar to those of the standards. An alternative method is Test Method D 1209 (see ).

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 and health practices and determine the applicability of regulatory limitations prior to use.

Note 1

Although Test Method A of these test methods and ISO 4630-1:2004 differ in some details, data obtained using either are technically equivalent. Although Test Method B of these test methods and ISO 6271-1981 differ in some details, data obtained using either are technically equivalent.

2. Referenced Documents (purchase separately) The documents listed below are referenced within the subject standard but are not provided as part of the standard.

ASTM Standards

D883 Terminology Relating to Plastics D1193 Specification for Reagent Water D1209 Test Method for Color of Clear Liquids (Platinum-Cobalt Scale) D5386 Test Method for Color of Liquids Using Tristimulus Colorimetry E308 Practice for Computing the Colors of Objects by Using the CIE System E1164 Practice for Obtaining Spectrometric Data for Object-Color Evaluation

Keywords

APHA; color; Gardner; platinum-cobalt scale; polyols; polyurethane raw materials; Pt-Coscale

ICS Code

DOI: 10.1520/D4890-06 ASTM International is a member of CrossRef.

ASTM D4890 (Plastics Standards)

Additional information

Standard Title	D4890-06 Standard Test Methods for Polyurethane Raw Materials: Determination of Gardner and APHA Color of Polyols (Redline)
Published Code	ASTM
Publication Date	2006
Pages Count	5

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ASTM-D4890 2006(Redline)

ASTM D4890 (Plastics Standards)

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