AATCC 186-2000 Weather Resistance: UV Light and Moisture Exposure.
4. Safety Precautions for information purposes only. The pre- NOTE: These safety precautions are cautions are ancillary to the testing proce- dures and are not intended to be all inclusive. It is the user’s responsibility to use safe and proper techniques in handling materials in this test method. Manufac- turers MUST be consulted for specific details such as material safety data sheets and other manufacturer’s recommendations. All OSH must also be consulted and followed. A standards and rules be followed. Wear safety
4.1 Good laboratory practices should laboratory areas. glasses in all until the manufacturer’s operating in
4.2 Do not operate the test equipment structions have been read and under- y stood. It is the responsibility of whoever operates the test equipment to conform to the manufacturer’s directions for safe op- eration. intensity lamps. Do not look directly at
4.3 The test equipment contains high the light source. The door to the test chamber must be kept closed when the equipment is in operation. allow 30 min for cool-down after the
4.4 Before servicing the light sources, lamp operation has been terminated. shut off both the “off” switch on the front
4.5 When servicing the test equipment, panel and the main power disconnect switch. When equipped, ensure that the main panel goes out. power light on the machine front
5. Uses and Limitations tended to simulate the deterioration
5.1 The use of this procedure is incaused by the UV energy in sunlight and water. Exposures are not intended to simulate the deterioration caused by local- ized weather phenomena, such as atmospheric salt water exposure. pollution, biological attack and be expected when operating conditions
5.2 Cautions. Variation in results may are varied within the accepted limits of this shall be made to results from the use of procedure. Therefore, no reference this report detailing the specific operating procedure unless accompanied by a conditions in conformance with the section on Report. dure can be used to compare the relative
5.3 Results obtained from this proce- durability of materials subjected to the specific test cycle used. Comparison of results from specimens exposed in different types of apparatus should not be made unless correlation has been established among devices for the material to be tested. Variations in results may be ex- pected when operating conditions vary within the limits of this procedure. Be- cause of the variability in results obtained using this practice and the variability in results from exterior exposures, use of a single “acceleration factor” that relates hours of an accelerated exposure to a spe- cific recommended. Because of possible variaperiod of outdoor exposure is not tions in results, no reference should be made to results obtained from tests con- ducted in the apparatus using this proce- dure unless accompanied by the information required in the section on Report. may decrease the degree of correlation
5.4 There are a number of factors that between accelerated tests using labora- tory light sources and actual use exposures.AATCC 186 pdf download.