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ASTM E313-00

Historical Revision

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

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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 .


SDO ASTM: ASTM International
Document Number E313
Publication Date Dec. 10, 2000
Language en - English
Page Count 5
Revision Level 00
Supercedes
Committee E12.04
Publish Date Document Id Type View
May 1, 2020 E0313-20 Revision
Jan. 1, 2015 E0313-15E01 Revision
Jan. 1, 2015 E0313-15 Revision
July 1, 2010 E0313-10 Revision
Oct. 1, 2005 E0313-05 Revision
Dec. 10, 2000 E0313-98 Revision
Dec. 10, 2000 E0313-00 Revision