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ASTM-E313:2010 Edition

ASTM-E313:2010 Edition

$40.63

E313-10 Standard Practice for Calculating Yellowness and Whiteness Indices from Instrumentally Measured Color Coordinates

Published By Publication Date Number of Pages
ASTM 2010 6
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1.1 This practice 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 The values stated in SI units are to be regarded as standard. No other units of measurement are included in this standard.

1.4 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.

PDF Catalog

PDF Pages PDF Title
1 Scope
Referenced Documents
Terminology
2 Summary of Practice
Significance and Use
Yellowness Index
3 Whiteness Index
TABLE 1
TABLE 2
4 Apparatus
Procedure
Calculations
Report
Keywords
X1. ALTERNATIVE MEASURES OF YELLOWNESS
X1.1
X1.2
5 X1.3
X1.4
X1.5
X1.6
X1.7
X2. ALTERNATIVE MEASURES OF WHITENESS
X2.1
X2.2
REFERENCES

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