ASTM E313-98

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

STANDARD published on 10.12.2000

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The information about the standard:

Designation standards: ASTM E313-98
Note: WITHDRAWN
Publication date standards: 10.12.2000
SKU: NS-46378
The number of pages: 5
Approximate weight : 15 g (0.03 lbs)
Country: American technical standard
Category: Technical standards ASTM

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Annotation of standard text ASTM E313-98 :

Keywords:

color, colorimetric analysis, instrumental measurement, color/light, reflectance, reflectivity, whiteness indexes, yellowness indexes, ICS Number Code 17.180.20 (Colours and measurement of light)

Additional information

1. 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 .

2. Referenced Documents

E1345-98(2019)	Standard Practice for Reducing the Effect of Variability of Color Measurement by Use of Multiple Measurements
E1247-12(2023)	Standard Practice for Detecting Fluorescence in Object-Color Specimens by Spectrophotometry
E1347-06(2020)	Standard Test Method for Color and Color-Difference Measurement by Tristimulus Colorimetry
E1164-23	Standard Practice for Obtaining Spectrometric Data for Object-Color Evaluation
E991-21	Standard Practice for Color Measurement of Fluorescent Specimens Using the One-Monochromator Method
E805-22	Standard Practice for Identification of Instrumental Methods of Color or Color-Difference Measurement of Materials
E308-22	Standard Practice for Computing the Colors of Objects by Using the CIE System
E284-22	Standard Terminology of Appearance
D1925-70(1988)	Test Method for Yellowness Index of Plastics (Withdrawn 1995)
D1729-22	Standard Practice for Visual Appraisal of Colors and Color Differences of Diffusely-Illuminated Opaque Materials
D1535-14(2023)	Standard Practice for Specifying Color by the Munsell System
E1541-98	Standard Practice for Specifying and Matching Color Using the Colorcurve System
E1499-16(2023)	Standard Guide for Selection, Evaluation, and Training of Observers
E1360-05(2019)	Standard Practice for Specifying Color by Using the Optical Society of America Uniform Color Scales System
E1349-06(2022)	Standard Test Method for Reflectance Factor and Color by Spectrophotometry Using Bidirectional (45?:0? or 0?:45?) Geometry
E1348-22	Standard Test Method for Transmittance and Color by Spectrophotometry Using Hemispherical Geometry
E1331-15(2023)	Standard Test Method for Reflectance Factor and Color by Spectrophotometry Using Hemispherical Geometry

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