AATCC 169:2020 pdf download.Test Method for Weather Resistance of Textiles: Xenon Lamp Exposure
1. Purpose and Scope
1.1 This test method provides a proce-dure for the exposure of textile materials of all kinds, including coated fabrics and products made thereof, in an artificial weathering apparatus using controlled conditions of test. This test method in-cludes procedures for both controlled
wetting and no wetting of the specimen.
1.2 Resistance to degradation is mea-sured either as percent strength loss or percent residual strength (breaking, tear-ing, or bursting) and/or colorfastness of the material when evaluated under stan-dard textile testing conditions.
2. Principle
2.1 Samples of the textile material to be tested and the agreed upon comparison standard are exposed simultaneously to a xenon lamp source under specified condi-tions. Resistance of the test material to degradation is compared to that of a com-parison standard.
5. Safety Precautions
5.1 The safety precautions specified in the method/procedure are ancillary to the testing procedures and are not intended to be all inclusive.
5.2 It is the user's responsibility to ref-erence applicable safety data sheets, use safe and proper techniques, and wear ap-propriate personal protective equipment in handling materials in this standard.
5.3 Users MUST consult manufactur-ers for specific details such as safety data sheets, equipment operating instructions,and other recommendations. Consult and follow all applicable health and safety regulations (e.g.. OSHA standards and rules.5.4 The test equipment contains high intensity lamps. The door of the test machine must be kept closed whenever it is running.
5.5 Before servicing xenon lamps, al-low time for cool down after test machine is shut down.
5.6 When servicing the test machine,shut off both the off switch and, if appli-cable, unplug the machine from the wall electrical socket. Insure that the main power indicator light on the machine front panel goes out.
7.2.1 Optical Filter-In order for xe-non-arcs to simulate terrestrial daylight,optical filters must be used to remove short wavelength UV radiation. In addi-tion, optical filters to remove infrared ra-diation may be used to prevent unrealistic heating of test specimens that can cause thermal degradation not experienced dur-ing outdoor exposures.AATCC 169 pdf download.