ASTM International - ASTM E313-98

Standard Practice for Calculating Yellowness and Whiteness Indices from Instrumentally Measured Color Coordinates

historical
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Organization: ASTM International
Publication Date: 10 December 2000
Status: historical
Page Count: 5
ICS Code (Colours and measurement of light): 17.180.20
scope:

1.1 This practive provides numbers that correlate with visual ratings of yellowness or whiteness of white and near-white or colorless object-color specimens, viewed in daylight by an observer with normal color vision. White textiles, paints, and plastics are a few of the materials that can be described by the indices of yellowness or whiteness calculated by this practice.

1.2 For a complete analysis of object colors, by a specified observer and under a specified illuminant, use of three parameters is required. For near-white specimens, however, it is often useful to calculate single-number scales of yellowness or whiteness. This practice provides recommended equations for such scales and discusses their derivations and uses, and limits to their applicability (see also Ref (1)).

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 .

Document History

May 1, 2020
Standard Practice for Calculating Yellowness and Whiteness Indices from Instrumentally Measured Color Coordinates
5.1 This practice should be used only to compare specimens of the same material and same general appearance. For example, a series of specimens to be compared should have generally similar gloss,...
January 1, 2015
Standard Practice for Calculating Yellowness and Whiteness Indices from Instrumentally Measured Color Coordinates
5.1 This practice should be used only to compare specimens of the same material and same general appearance. For example, a series of specimens to be compared should have generally similar gloss,...
January 1, 2015
Standard Practice for Calculating Yellowness and Whiteness Indices from Instrumentally Measured Color Coordinates
5.1 This practice should be used only to compare specimens of the same material and same general appearance. For example, a series of specimens to be compared should have generally similar gloss,...
July 1, 2010
Standard Practice for Calculating Yellowness and Whiteness Indices from Instrumentally Measured Color Coordinates
This practice should be used only to compare specimens of the same material and same general appearance. For example, a series of specimens to be compared should have generally similar gloss,...
October 1, 2005
Standard Practice for Calculating Yellowness and Whiteness Indices from Instrumentally Measured Color Coordinates
This practice should be used only to compare specimens of the same material and same general appearance. For example, a series of specimens to be compared should have generally similar gloss,...
ASTM E313-98
December 10, 2000
Standard Practice for Calculating Yellowness and Whiteness Indices from Instrumentally Measured Color Coordinates
1.1 This practive provides numbers that correlate with visual ratings of yellowness or whiteness of white and near-white or colorless object-color specimens, viewed in daylight by an observer with...
December 10, 2000
Standard Practice for Calculating Yellowness and Whiteness Indices from Instrumentally Measured Color Coordinates
1.1 This practive provides numbers that correlate with visual ratings of yellowness or whiteness of white and near-white or colorless object-color specimens, viewed in daylight by an observer with...
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