ASTM G154 - 23
Standard Practice for Operating Fluorescent Ultraviolet (UV) Lamp Apparatus for Exposure of Materials
| Aviso: | Las normas ASTM en lectura se visualizan a través del área decliente. Los archivos no se pueden descargar |
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| Fecha edición: |
2023-01-01
En Vigor
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| Idiomas disponibles: | Inglés |
| Resumen: | |
| Keywords: | accelerated; accelerated weathering; durability; exposure; fluorescent UV lamps; laboratory weathering; light; lightfastness; non-metallic materials; temperature; ultraviolet; weathering; |
| Scope: | 1.1 This practice is limited to the basic principles for operating a fluorescent UV lamp and water apparatus; on its own, it does not deliver a specific result. 1.2 It is intended to be used in conjunction with a practice or method that defines specific exposure conditions for an application along with a means to evaluate changes in material properties. This practice is intended to reproduce the weathering effects that occur when materials are exposed to sunlight (either direct or through window glass) and moisture as rain or dew in actual usage. This practice is limited to the procedures for obtaining, measuring, and controlling conditions of exposure. Note 1: Practice G151 describes general procedures to be used when exposing nonmetallic materials in accelerated test devices that use laboratory light sources. Note 2: A number of exposure procedures are listed in an appendix; however, this practice does not specify the exposure conditions best suited for the material to be tested. 1.3 Test specimens are exposed to fluorescent UV light under controlled environmental conditions. Different types of fluorescent UV lamp sources are described. Note 3: In this standard, the terms UV light and UV radiation are used interchangeably. 1.4 Specimen preparation and evaluation of the results are covered in ASTM methods or specifications for specific materials. General guidance is given in Practice G151 and ISO 4892-1. Note 4: General information about methods for determining the change in properties after exposure and reporting these results is described in ISO 4582 and Practice D5870. 1.5 This practice is not intended for corrosion testing of bare metals. 1.6 The values stated in SI units are to be regarded as standard. No other units of measurement are included in this standard. 1.7 This standard is technically similar to ISO 4892-3 and ISO 16474-3. 1.8 This 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. 1.9 This 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. |
| ICS: | 19.040 - Ensayos ambientales |
| CTN: | G03.03 - G03.03 |
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Otras Relaciones |
Es referenciada por C1519-10R22 Es referenciada por D4434_D4434M-21 Es referenciada por E1797-12R17E01 Es referenciada por D4329-21 Es referenciada por D7238-20 Es referenciada por D5329-20 Es referenciada por C1442-14R21 Es referenciada por E3006-20 Es referenciada por D7032-21 Es referenciada por G0151-19 Es referenciada por D5208-14R22 Es referenciada por D4674-19 Es referenciada por D0750-12R21 Es referenciada por D6662-22 Es referenciada por D5894-21 Es referenciada por D4811_D4811M-16R23 Es referenciada por D0904-99R21 Es referenciada por D7031-11R19 Es referenciada por C1423-21 Es referenciada por D7745-19 |
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