EDS-T-7415精品.pdf

EDS Engineering, Daewoo motor co., ltd. Standards TEST METHOD FOR DETERMINING COLOR FASTNESS TO ARTIFICIAL LIGHT EDS-T-7415 ISSUED DATE: 1991. 07. 26 REVISEDDATE: 1998. 04. 30 VERSION: 5 Copyright Daewoo Motor Co., Ltd. All rights reserved PUBLISHED BY ENGINEERING STANDARD SECRETARIAT TECHNICAL CENTER (PUPYONG) DAEWOO MOTOR CO., LTD. TEST METHOD FOR DETERMINING COLOR EDS-T-7415 FASTNESS TO ARTIFICIAL LIGHT PAGE: 1/6 1. PURPOSE This standard aims at specifying the method of evaluating colorfastness to artificial light of dyes, prints, paints and trim materials (textiles, genuine leather, artificial leather, plastics, cardboard, wood etc.) by exposing them to the artificial light similar to the natural light under a specific temperature. 2. SCOPE Measurement of the color fastness to artificial light of various materials 3. DEFINITION 3.1. Color fastness to artificial light : It is a measure of the resistance of the colorants (dyes, pigments etc.) of materials to the effects of light and heat. 4. TEST PIECES AND NUMBER OF TEST PIECES 4.1. Take test pieces of 70 X 220mm from the finished products or from the raw material so that the color and shape of the finished product is maintained. For textile, take the sample along warp thread and mount it on the test holder. 4.2. Test pieces for multiple exposure test shall be tested being backed by another material like polyester fleece. The back of the test piece holder shall always be sealed. Unless specified otherwise, the thickness of such backing shall not be smalle