1.1 本试验方法描述了臭氧（O）的取样和连续分析 3. )在大气中，浓度为10至2000μg/m 3. 共O个 3. 空气中（5 ppb（v）至1 ppm（v））。 1.1.1 试验方法仅限于第节所述的干扰敏感性应用 6. .干扰敏感性可能会限制其在环境和工作场所大气中的使用。 1.2 以国际单位表示的数值视为标准值。本标准不包括其他计量单位。 1.3 本标准并不旨在解决与其使用相关的所有安全问题（如有）。本标准的使用者有责任在使用前制定适当的安全、健康和环境实践，并确定监管限制的适用性。 1.4 本国际标准是根据世界贸易组织技术性贸易壁垒（TBT）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》中确立的国际公认标准化原则制定的。 =====意义和用途====== 5.1 O的标准 3. 为了保护公众的健康和福利，政府当局已经颁布了 ( 6. ) 也是为了保护工业工人 ( 7. ) . 5.2 尽管O 3. 本身是一种有毒物质，在环境空气中主要是与O形成的光化学氧化剂 3. 暴露在阳光下的污染空气中，会导致烟雾症状，如流泪和眼睛灼伤。 臭氧比这些光化学氧化剂更容易监测，并能很好地指示其浓度，因此，臭氧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 ozone (O 3 ) in the atmosphere at concentrations ranging from 10 to 2000 μg/m 3 of O 3 in air (5 ppb(v) to 1 ppm(v)). 1.1.1 The test method is limited to applications by its sensitivity to interferences as described in Section 6 . The interference sensitivities may limit its use for ambient and workplace atmospheres. 1.2 The values stated in SI units are to be regarded as standard. No other units of measurement are included in this standard. 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, health, and environmental practices and determine the applicability of regulatory limitations prior to use. 1.4 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 ====== 5.1 Standards for O 3 in the atmosphere have been promulgated by government authorities to protect the health and welfare of the public ( 6 ) and also for the protection of industrial workers ( 7 ) . 5.2 Although O 3 itself is a toxic material, in ambient air it is primarily the photochemical oxidants formed along with O 3 in polluted air exposed to sunlight that cause smog symptoms such as lachrymation and burning eyes. Ozone is much more easily monitored than these photochemical oxidants and provides a good indication of their concentrations, and it is therefore the substance that is specified in air quality standards and regulations.