1.1本试验方法描述了使用炭管法测定工作场所大气中的环氧乙烷（环氧乙烷）。 1.2本试验方法与低流速个人采样设备兼容:10至200 mL/min。可用于人员或区域监测。 1.3采样方法产生时间加权平均（TWA）样本，并可用于确定短期偏移（STE）。 1.4 TWA样品的适用浓度范围为0.3至20 ppm（v）。 1.5 STE样品的适用浓度范围为1至1000 ppm（v）。 1.6以国际单位制表示的数值应视为标准。英寸-磅单位仅供参考。 1.7 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。 （有关更具体的安全预防说明，请参阅第9节和第10.2.3节以及第11.1.3节。） ====意义和用途====== 环氧乙烷是制造许多其他散装工业化学品以及杀菌剂的主要原料。 本试验方法提供了一种评估工作环境中环氧乙烷暴露于当前推荐暴露指南的方法: 5.2.1 OSHA PEL 1 ppm（v）8小时TWA。 3. 5.2.2 ACGIH TLV 1 ppm（v）。 4.

1.1 This test method describes the determination of ethylene oxide (oxirane) in workplace atmospheres using charcoal tube methodology. 1.2 This test method is compatible with low flow rate personal sampling equipment: 10 to 200 mL/min. It can be used for personnel or area monitoring. 1.3 The sampling method develops a time-weighted average (TWA) sample and can be used to determine short-term excursions (STE). 1.4 The applicable concentration range for the TWA sample is from 0.3 to 20 ppm(v). 1.5 The applicable concentration range for the STE sample ranges from 1 to 1000 ppm(v). 1.6 The values stated in SI units shall be regarded as the standard. Inch-pound units are provided for information only. 1.7 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. (For more specific safety precautionary statements see Section 9 and 10.2.3 and 11.1.3.) ====== Significance And Use ====== Ethylene oxide is a major raw material used in the manufacture of numerous other bulk industrial chemicals as well as a sterilizing agent. This test method provides a means of evaluating exposure to ethylene oxide in the working environment at the presently recommended exposure guidelines: 5.2.1 OSHA PEL 1 ppm(v) 8-hr TWA. 3 5.2.2 ACGIH TLV 1 ppm(v). 4