ASTM G 151 : 2026

1.1This practice covers general procedures to be used when exposing materials in accelerated test devices that use laboratory light sources. Detailed information regarding procedures to be used for specific devices are found in standards describing the particular device being used. For example, detailed information covering exposures in devices that use open flame carbon arc, enclosed carbon arc, fluorescent UV, and xenon arc light sources is found in Practices G152, G153, G154, and G155 respectively.

1.2This practice is not intended for the corrosion testing of bare metals.

1.3This practice also describes general performance requirements for devices used for exposing materials to laboratory light sources.

1.4While this document is a practice providing guidance for users, it also contains detailed design requirements for instrument manufacturers.

1.5This practice provides information on the use and interpretation of data from accelerated exposure tests. Specific information about methods for determining the property of a material before and after exposure are found in standards describing the method used to measure each property. Information regarding the reporting of results from exposure testing of plastic materials is described in Practice D5870.

1.6This standard does not purport to address all of the safety concerns, if any, associated with its use. It is the responsibility of the user of this standard to establish appropriate safety, health, and environmental practices and determine the applicability of regulatory limitations prior to use.

1.7This international standard was developed in accordance with internationally recognized principles on standardization established in the Decision on Principles for the Development of International Standards, Guides and Recommendations issued by the World Trade Organization Technical Barriers to Trade (TBT) Committee.