The ASTM G154-00 standard, developed by the American Society for Testing and Materials (ASTM), deals with the use of fluorescent UV light and water devices to reproduce the weather effects that occur when materials are exposed to sunlight directly or through window glass, and in actual use to moisture as rain or dew. basic principles and operating procedures are explained. This application is limited to procedures for obtaining, measuring and controlling exposure conditions. A number of exposure procedures are listed in the standard appendix. However, this practice does not specify the optimal exposure conditions for the material to be tested.
Another ASTM standard, ASTM G151, describes performance criteria for all exposure devices using laboratory light sources. This application replaces the ASTM G53 standard, which defines very specific designs for devices used for fluorescent UV exposures.
While testing, samples are exposed to fluorescent UV light under controlled environmental conditions. Different types of fluorescent UV light sources are described. Sample preparation and evaluation of results are covered in the relevant standards for specific materials. General guidance is given in the ASTM G151 and ISO 4892-1 standards. More specific information on methods for detecting change in properties after exposure and reporting these results is contained in the ISO 4582 standard.
The test method described in the ASTM G154 standard uses fluorescent light sources that can simulate ultraviolet radiation. Unlike the ASTM G155 standard, which uses xenon arc exposure, this technique is not typically used to evaluate color changes as a function of time. This method is used to assess accelerated wear on plastics, adhesives and sealants, printing inks, and coatings. It is also used to perform accelerated aging on many finished products, including roofing materials and outdoor home products.
Among the numerous tests, measurements, analyses, and evaluations our organization provides for businesses in various sectors, we also offer standard testing services for operating fluorescent light devices for UV exposure of non-metallic materials, in accordance with the ASTM G154-00 standard, thanks to our trained and expert staff and advanced technological equipment.
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