1.1本规程给出了大气试验场地表征的建议程序。连续特征化可以提供腐蚀数据和/或环境数据，这将标志着大气环境腐蚀性的变化。该实践还可以为未来测试场地的分类提供指导。 1.2本实施规程中定义了两种用于描述大气试验场地特征的方法。这些方法被确定为表征方法A和B。首选的表征技术需要同时使用方法A和B进行数据收集。 1.2.1当使用指定材料和暴露配置在试验现场连续监测大气腐蚀时，应使用方法A。 1.2.2当连续监测大气因素时，规定了方法B。 1.3本标准无意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 gives suggested procedures for the characterization of atmospheric test sites. Continuous characteri- ization can provide corrosion data, environmental data, or both which will signal changes in corrosivity of the atmos- pheric environment. This practice can also provide guidance for classification of future test sites. 1.2 Two methods are defined in this practice for the char- acterization of atmospheric test sites. The methods are iden- tified as characterization Methods A and B. The preferred characterization technique would require using both Method A and B for concurrent data collection. 1.2.1 Method A is to be used when atmospheric corrosion is monitored on a continuing basis at a test site using specified materials and exposure configurations. 1.2.2 Method B is specified when atmospheric factors are monitored on a continuing basis. 1.3 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.