ASTM D2244-02
Standard Practice for Calculation of Color Tolerances and Color Differences from Instrumentally Measured Color Coordinates

Standard No.

ASTM D2244-02

Release Date

2002

Published By

American Society for Testing and Materials (ASTM)

Status

Be replaced

Replace By

ASTM D2244-02e1

Latest

ASTM D2244-23

Scope

1.1 This practice covers the calculation, from instrumentally measured color coordinates based on daylight illumination, of color tolerances and small color differences between opaque specimens such as painted panels, plastic plaques, or textile swatches. Where it is suspected that the specimens may be metameric, that is, possess different spectral curves though visually alike in color, Practice D 4086 should be used to verify instrumental results. The tolerances and differences determined by these procedures are expressed in terms of approximately uniform visual color perception in CIE 1976 CIELAB opponent-color space (1), CMC tolerance units (2), CIE94 tolerance units (3), the DIN99 color difference formula given in DIN 6176 (4), or the new CIEDE2000 color difference units (5). The color differences based on Hunter L_H, a_H, b_H opponent-color space (6), or the Friele-MacAdam-Chickering (FMC-2) color space (7), are no longer recommended for industrial practice.

1.2 For product specification, the purchaser and the seller shall agree upon the permissible color tolerance between test specimen and reference and the procedure for calculating the color tolerance. Each material and condition of use may require specific color tolerances because other appearance factors, (for example, specimen proximity, gloss, and texture), may affect the correlation between the magnitude of a measured color difference and its commercial acceptability.

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 requirements prior to use.

ASTM D2244-02 history

• 2023 ASTM D2244-23 Standard Practice for Calculation of Color Tolerances and Color Differences from Instrumentally Measured Color Coordinates
• 2022 ASTM D2244-22 Standard Practice for Calculation of Color Tolerances and Color Differences from Instrumentally Measured Color Coordinates
• 2021 ASTM D2244-21 Standard Practice for Calculation of Color Tolerances and Color Differences from Instrumentally Measured Color Coordinates
• 2016 ASTM D2244-16 Standard Practice for Calculation of Color Tolerances and Color Differences from Instrumentally Measured Color Coordinates
• 2015 ASTM D2244-15a Standard Practice for Calculation of Color Tolerances and Color Differences from Instrumentally Measured Color Coordinates
• 2015 ASTM D2244-15e1 Standard Practice for Calculation of Color Tolerances and Color Differences from Instrumentally Measured Color Coordinates
• 2015 ASTM D2244-15 Standard Practice for Calculation of Color Tolerances and Color Differences from Instrumentally Measured Color Coordinates
• 2014 ASTM D2244-14 Standard Practice for Calculation of Color Tolerances and Color Differences from Instrumentally Measured Color Coordinates
• 2011 ASTM D2244-11 Standard Practice for Calculation of Color Tolerances and Color Differences from Instrumentally Measured Color Coordinates
• 2009 ASTM D2244-09b Standard Practice for Calculation of Color Tolerances and Color Differences from Instrumentally Measured Color Coordinates
• 2009 ASTM D2244-09a Standard Practice for Calculation of Color Tolerances and Color Differences from Instrumentally Measured Color Coordinates
• 2009 ASTM D2244-09 Standard Practice for Calculation of Color Tolerances and Color Differences from Instrumentally Measured Color Coordinates
• 2007 ASTM D2244-07e1 Standard Practice for Calculation of Color Tolerances and Color Differences from Instrumentally Measured Color Coordinates
• 2007 ASTM D2244-07 Standard Practice for Calculation of Color Tolerances and Color Differences from Instrumentally Measured Color Coordinates
• 2005 ASTM D2244-05 Standard Practice for Calculation of Color Tolerances and Color Differences from Instrumentally Measured Color Coordinates
• 2002 ASTM D2244-02e1 Standard Practice for Calculation of Color Tolerances and Color Differences from Instrumentally Measured Color Coordinates
• 2002 ASTM D2244-02 Standard Practice for Calculation of Color Tolerances and Color Differences from Instrumentally Measured Color Coordinates
• 1993 ASTM D2244-93(2000) Standard Test Method for Calculation of Color Differences From Instrumentally Measured Color Coordinates