1.1本规程提供了在使用实验室光源的加速试验装置中暴露非金属材料时使用的一般程序。有关用于特定设备的程序的详细信息，请参见描述所用特定设备的标准。例如，实践G152、G153、G154和G154中分别找到了使用碳弧、氙弧和荧光紫外光源的设备中曝光的详细信息。 注1——实践G23、G26和G53中也描述了碳弧、氙弧和荧光紫外线曝光，其中描述了非常具体的设备设计。规程G152、G153、G154和G 154是基于性能的标准，取代规程G23、G26和G53 1.2本规程还描述了用于将非金属材料暴露于实验室光源的装置的一般性能要求。此信息主要用于实验室加速曝光设备的生产商。 1.3本规程提供了加速暴露试验数据的使用和解释信息。关于在暴露前后确定非金属材料性能的方法的具体信息，见描述用于测量每种性能的方法的标准。规程D5870中描述了有关塑料材料暴露试验结果报告的信息。 注2——指南G141提供了解决非金属材料暴露试验可变性的信息。 ASTM G3委员会正在制定暴露试验结果统计应用的标准指南。 注3——本标准在技术上等同于ISO 4892第1部分。 1.4 本标准并非旨在解决与其使用相关的所有安全问题（如有）。本标准的用户有责任在使用前制定适当的安全和健康实践，并确定监管限制的适用性。

1.1 This practice provides general procedures to be used when exposing nonmetallic 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 carbon-arc, xenon-arc, and fluorescent UV light sources are found in Practices G152, G153, and G154, and G154 respectively. Note 1--Carbon-arc, xenono-arc, and fluorescent UV exposures are also described in Practices G23, G26, and G53 which described very specific equipment designs. Practices G152, G153, and G154, and G 154 are performance based standards that replace Practices G23, G26, and G53 1.2 This practice also describes general performance requirements for devices used for exposing nonmetallic materials to laboratory light sources. This information is intended primarily for producers of laboratory accelerated exposure devices. 1.3 This practice provides information on the use and interpretation of data from accelerated exposure tests. Specific information about methods for determining the property of a nonmetallic 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. Note 2--Guide G141 provides information for addressing variability in exposure testing of nonmetallic materials. ASTM Committee G3 is developing a standard guide for application of statistics to exposure test results. Note 3--This standard is technically equivalent to ISO 4892, Part 1. 1.4 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 and health practices and determine the applicability of regulatory limitations prior to use.