1.1本规程提供了加权平均有效SO2 通过使用硫酸盐化板法（一种估算有效SO2的技术）在30天间隔内的水平 大气含量，尤其是关于固定结构或面板的大气腐蚀。本规程旨在测定SO2 水平，而不是硫酸气溶胶或酸沉淀。 1.2本规程的结果与体积SO2近似相关 浓度，尽管露水或冷凝水分的存在往往会增强对SO2的捕获 放进盘子里。 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 provides a weighted average effective SO2 level for a 30-day interval through the use of the sulfation plate method, a technique for estimating the effective SO2 content of the atmosphere, and especially with regard to the atmospheric corrosion of stationary structures or panels. This practice is aimed at determining SO2 levels rather than sulfuric acid aerosol or acid precipitation. 1.2 The results of this practice correlate approximately with volumetric SO2 concentrations, although the presence of dew or condensed moisture tends to enhance the capture of SO2 into the plate. 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.