1.1 本试验方法描述了20μg至2000μg臭氧/m浓度下大气臭氧含量的取样和连续分析 3. （10 ppb（v）至1 ppm（v））。 1.2 如下所述，该测试方法的应用受到其对干扰敏感性的限制。由于仪器尺寸以及对振动和环境温度的敏感性，这种测试方法不适合个人采样。 1.3 以国际单位制表示的值应被视为标准值。SI单位后括号中给出的值仅供参考，不被视为标准值。 1.4 本标准并不旨在解决与其使用相关的所有安全问题（如果有的话）。本标准的使用者有责任在使用前建立适当的安全、健康和环境实践，并确定监管限制的适用性。 第节中给出了一些具体的预防措施 8. . 1.5 本国际标准是根据世界贸易组织技术性贸易壁垒委员会发布的《关于制定国际标准、指南和建议的原则的决定》中确立的国际公认的标准化原则制定的。 =====意义和用途====== 4.1 政府当局已颁布臭氧空气质量标准，以保护公众的健康和福利。虽然臭氧本身是一种有毒物质，但通常是复杂的有机化合物引起 烟雾 例如流泪和灼热的眼睛。然而，臭氧是主要的氧化剂，比有机物质更容易监测。由于臭氧浓度也与其他光化学氧化剂水平相关，因此是空气质量标准和法规中规定的物质。

1.1 This test method describes the sampling and continuous analysis of the ozone content of the atmosphere at concentrations of 20 μg to 2000 μg of ozone/m 3 (10 ppb (v) to 1 ppm (v)). 1.2 This test method is limited in application by its sensitivity to interferences as described below. This test method is not suitable for personal sampling because of instrument size and sensitivity to vibration and ambient temperature. 1.3 The values stated in SI units are to be regarded as standard. The values given in parentheses after SI units are provided for information only and are not considered standard. 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, health, and environmental practices and determine the applicability of regulatory limitations prior to use. Some specific precautionary statements are presented in Section 8 . 1.5 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. ====== Significance And Use ====== 4.1 Air quality standards for ozone have been promulgated by government authorities to protect the health and welfare of the public. Though ozone itself is a toxic material, it is often complex organic compounds that cause the symptoms of smog such as tearing and burning eyes. However, ozone is the predominant oxidant and is much more easily monitored than organic species. Since ozone concentrations are also correlated with other photochemical oxidant levels, it is the substance that is specified in air quality standards and regulations.