Colorfastness to Light: Carbon-Arc
in 2012 by AATCC Committee RA50; revised 2014
1. Purpose and Scope
1.1 This test method provides the general principles and procedures for determining the colorfastness to light of textile materials. The test options described are applicable to textile materials of all kinds and for colorants, finishes and treatments applied to textile materials. Test options included are:
1—Enclosed Carbon-Arc Lamp, Continuous Light
2—Enclosed Carbon-Arc Lamp, Alternate Light and Dark
1.2 The use of these test options does not imply, expressly or otherwise, an accelerated test for a specific application. The relationship between any lightfastness test and the actual exposure in use must be determined and agreed upon by the contractual parties.
1.3 This test method contains the following sections that assist in the use and implementation of the various options for determining lightfastness of textile materials:
Purpose and Scope
Uses and Limitations
Apparatus and Materials
Test Specimen Preparation
Machine Operating Conditions
Calibration and Verification
AATCC Fading Unit
Machine Exposure Procedures
Evaluation of Results
Precision and Bias
Appendix B (Flow Chart)
Copyright © 2012 American Association of Textile Chemists and Colorists, Research Triangle
All rights reserved.
above information is only a summary of the AATCC Test Method.
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