1.1这些实践的目的是定义原子氧暴露程序，旨在最大限度地减少任何特定原子氧暴露设施内结果的可变性，并有助于理解在不同设施中测试时材料响应的差异。 1.2这些规程的目的不是指定任何特定类型的原子氧暴露设施，而是简单地指定可应用于各种设施的程序。 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。 1.3以国际单位制表示的数值应视为标准。

1.1 The intent of these practices is to define atomic oxygen exposure procedures that are intended to minimize variability in results within any specific atomic oxygen exposure facility as well as contribute to the understanding of the differences in the response of materials when tested in different facilities. 1.2 These practices are not intended to specify any particular type of atomic oxygen exposure facility but simply specify procedures that can be applied to a wide variety of facilities. 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. 1.3 The values stated in SI units are to be regarded as the standard.