The practice, as defined in the ASTM G152 standard developed by the American Testing and Materials Association (ASTM), is the application of open flame carbon arc light and water apparatuses to reproduce the wear effects that occur when materials are exposed to sunlight (directly or through window glass) and moisture as rain or dew in actual use. It contains the basic principles and working procedures regarding the use of
The practice defined in the standard, whose full name is “ASTM G152-13 Standard practice for operating open-flame carbon arc light apparatus for exposure of non-metallic materials,” 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.
The ASTM G151 standard describes performance criteria for all exposure devices using laboratory light sources. This application replaces the ASTM G23 standard, which describes very specific designs for devices used for carbon arc exposures. The apparatus described in the ASTM G23 standard is within the scope of this application.
During testing, test specimens are exposed to filtered open-flame carbon arc light under controlled environmental conditions. Sample preparation and evaluation of results are covered in methods or specifications for specific materials. General guidance is contained in the ASTM G151 and ISO 4892-1 standard. More specific information on methods for detecting change in properties after exposure and reporting these results is described in ASTM D5870.
The carbon arc apparatus is one of the oldest accelerated aging test chambers designed to test the lightfastness of materials and has until now been a valuable test method for evaluating the resistance of polymeric materials to sunlight and moisture. Carbon arc devices use an arcing light source to simulate sunlight.
Our organization, among the numerous test, measurement, analysis and evaluation studies it has given for businesses in various sectors, with its trained and expert staff and advanced technological equipment, within the scope of ASTM G152-13 standard, for the operation of open flame carbon arc light apparatus for the exposure of non-metallic materials. It also provides standard testing services.
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