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ASTM D4086-18(2023)

Historical Reaffirmation

Standard Practice for Visual Evaluation of Metamerism

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1.1 This practice describes visual methods for detecting metamerism and for estimating the magnitude of a metameric color difference.

1.2 The practice is limited to the consideration of illuminant metamerism and observer metamerism. This practice does not cover gonioapparent samples.

1.3 This practice does not provide for the computation of indices of metamerism based upon instrumental measurement of spectral characteristics.

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, health, and environmental practices and determine the applicability of regulatory limitations prior to use.

1.5 This international standard was developed in accordance with internationally recognized principles on standardization established in the Decision on Principles for the Development of International Standards, Guides and Recommendations issued by the World Trade Organization Technical Barriers to Trade (TBT) Committee.


4.1 Metameric color matches result from the use of different colorants (pigments, dyes, and the like) in achieving the same color match. Usually, the purchaser requires that the color match be nonmetameric; this practice permits this requirement to be quickly tested in both field and laboratory. Where nonmetameric matches are not possible or practicable, for cost or other reasons, some limitation of metamerism may be required. The procedures for estimating the magnitude of metamerism described in this practice provide methods for assessing the effectiveness of such limitation.

SDO ASTM: ASTM International
Document Number D4086
Publication Date Nov. 1, 2023
Language en - English
Page Count 3
Revision Level 18(2023)
Supercedes
Committee E12.11
Publish Date Document Id Type View
Oct. 1, 2018 D4086-18 Revision
Nov. 1, 2023 D4086-18R23 Reaffirmation
July 1, 2012 D4086-92AR12 Reaffirmation
May 1, 2007 D4086-92AR07 Reaffirmation
Dec. 1, 2003 D4086-92AR03 Reaffirmation
Jan. 1, 1997 D4086-92AR97E01 Reaffirmation