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Significance and Use
Whiteness index obtained from reflectance measurements on exaggerated dried polish films on filter paper can be used as a measurement of the color of such films.
Whiteness index may be useful in predicting the potential discoloring effect of polish films on flooring substrates.
Whiteness index should be useful in specifications when color comparisons are made with a standard sample polish.
1.1 This test method covers comparing colors of films (or solids) deposited from the emulsified particles in water emulsion floor polishes. It is based upon luminous reflectance measurements made with tristimulus colorimeters such as the Hunter Color Difference Meter.
1.2 The values stated in SI units are to be regarded as the standard. The values given in parentheses are for information only.
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 (purchase separately) The documents listed below are referenced within the subject standard but are not provided as part of the standard.
E259 Practice for Preparation of Pressed Powder White Reflectance Factor Transfer Standards for Hemispherical and Bi-Directional Geometries
ICS Number Code 17.180.20 (Colours and measurement of light); 71.100.99 (Other products of the chemical industry)
UNSPSC Code 47131802(Floor finishes or polishes)