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ASTM D2244

Standard Test Method for Calculation of Color Differences From Instrumentally Measured Color Coordinates

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Organization: ASTM
Publication Date: 15 September 1993
Status: inactive
Page Count: 5
ICS Code (Colours and measurement of light): 17.180.20
scope:

This test method covers the calculation, from instrumentally measured color coordinates based on daylight illumination, of small color differences between nonfluorescent, nonmetameric, opaque specimens such as painted panels. (Where it is suspected that the specimens may be metameric, that is, possess different spectral curves though visually alike in color, Practices D 1729 and D 4086 should be used to verify instrumental results.) The color differences determined by these procedures are expressed in terms of approximately uniform visual color perception in CIE 1976 CIELAB opponent-color space (1),2 Hunter LH, aH, bH opponent-color space (2), and the Friele-MacAdam-Chickering (FMC-2) color space (3).

For product specification, the permissible color difference between test specimen and reference and the procedure for calculating the color difference shall be agreed upon by the purchaser and the seller. Specific color tolerances may be required for each material and condition of use since other appearance factors (for example, proximity, gloss, and texture) may affect the correlation between the magnitude of a measured color difference and its commercial acceptability.

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.

2 The boldface numbers in parentheses refer to the list of references at the end of this method.

Document History

July 1, 2016
Standard Practice for Calculation of Color Tolerances and Color Differences from Instrumentally Measured Color Coordinates
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...
August 1, 2015
Standard Practice for Calculation of Color Tolerances and Color Differences from Instrumentally Measured Color Coordinates
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...
January 1, 2015
Standard Practice for Calculation of Color Tolerances and Color Differences from Instrumentally Measured Color Coordinates
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...
January 1, 2015
Standard Practice for Calculation of Color Tolerances and Color Differences from Instrumentally Measured Color Coordinates
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...
May 1, 2014
Standard Practice for Calculation of Color Tolerances and Color Differences from Instrumentally Measured Color Coordinates
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...
June 1, 2011
Standard Practice for Calculation of Color Tolerances and Color Differences from Instrumentally Measured Color Coordinates
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...
December 1, 2009
Standard Practice for Calculation of Color Tolerances and Color Differences from Instrumentally Measured Color Coordinates
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...
August 1, 2009
Standard Practice for Calculation of Color Tolerances and Color Differences from Instrumentally Measured Color Coordinates
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...
July 1, 2009
Standard Practice for Calculation of Color Tolerances and Color Differences from Instrumentally Measured Color Coordinates
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...
May 1, 2007
Standard Practice for Calculation of Color Tolerances and Color Differences from Instrumentally Measured Color Coordinates
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...
May 1, 2007
Standard Practice for Calculation of Color Tolerances and Color Differences from Instrumentally Measured Color Coordinates
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...
October 1, 2005
Standard Practice for Calculation of Color Tolerances and Color Differences from Instrumentally Measured Color Coordinates
(Footnote *) This practice covers the calculation, from instrumentally measured color coordinates based on daylight illumination, of color tolerances and small color differences between opaque...
June 10, 2002
Standard Practice for Calculation of Color Tolerances and Color Differences from Instrumentally Measured Color Coordinates
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...
June 10, 2002
Standard Practice for Calculation of Color Tolerances and Color Differences from Instrumentally Measured Color Coordinates
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...
September 15, 1993
Standard Test Method for Calculation of Color Differences from Instrumentally Measured Color Coordinates
This test method covers the calculation, from instrumentally measured color coordinates based on daylight illumination, of small color differences between nonfluorescent, non-metameric, opaque...
ASTM D2244
September 15, 1993
Standard Test Method for Calculation of Color Differences From Instrumentally Measured Color Coordinates
This test method covers the calculation, from instrumentally measured color coordinates based on daylight illumination, of small color differences between nonfluorescent, nonmetameric, opaque...
October 27, 1989
STANDARD TEST METHOD FOR CALCULATION OF COLOR DIFFERENCES FROM INSTRUMENTALLY MEASURED COLOR COORDINATES
A description is not available for this item.
November 29, 1985
STANDARD METHOD FOR CALCULATION OF COLOR DIFFERENCES FROM INSTRUMENTALLY MEASURED COLOR COORDINATES
A description is not available for this item.

References

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