ASTM D4890-13 PDF

Scope: 5.1 These test methods are suitable for quality control, as specification tests, and for research. Color is an important property of urethane products.

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 D1209 (see Note 1).

1.2 Units—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—Test Method A of this standard is equivalent to ISO8201;6271-1 . Test Method B of this standard is equivalent to ISO 4630-1 .

ASTM D4890-13 Referenced Document

ASTM D1193 Standard Specification for Reagent Water
ASTM D1209 Standard Test Method for Color of Clear Liquids (Platinum-Cobalt Scale)
ASTM D5386 Standard Test Method for Color of Liquids Using Tristimulus Colorimetry
ASTM D6166 Standard Test Method for Color of Naval Stores and Related Products (Instrumental Determination of Gardner Color)
ASTM D883 Standard Terminology Relating to Plastics
ASTM E1164 Standard Practice for Obtaining Spectrophotometric Data for Object-Color Evaluation
ASTM E177 Standard Practice for Use of the Terms Precision and Bias in ASTM Test Methods
ASTM E308 Standard Practice for Computing the Colors of Objects by Using the CIE System
ASTM E691 Standard Practice for Conducting an Interlaboratory Study to Determine the Precision of a Test Method
ISO 4630-1 Clear liquids - Estimation of colour by the Gardner colour scale - Part 1: Visual method
ISO 4630-2 Clear liquids - Estimation of colour by the Gardner colour scale - Part 2: Spectrophotometric method
ISO 6271-1 Clear liquids - Estimation of colour by the platinum-cobalt scale - Part 1: Visual method
ISO 6271-2 Clear liquids - Estimation of colour by the platinum-cobalt scale - Part 2: Spectrophotometric method

2018 ASTM D4890-18 Standard Test Methods for Polyurethane Raw Materials: Determination of Gardner and APHA Color of Polyols
2013 ASTM D4890-13 Standard Test Methods for Polyurethane Raw Materials: Determination of Gardner and APHA Color of Polyols
2006 ASTM D4890-06 Standard Test Methods for Polyurethane Raw Materials: Determination of Gardner and APHA Color of Polyols
2003 ASTM D4890-98(2003) Standard Test Methods for Polyurethane Raw Materials: Determination of Gardner and APHA Color of Polyols
1998 ASTM D4890-98 Standard Test Methods for Polyurethane Raw Materials Determination of Gardner and APHA Color of Polyols