1.1 本试验方法描述了由于某些工业过程而在空气中传播的苯可溶颗粒物的取样和重量测定。本试验方法可用于测定苯可溶性物质的总重量，并提供可用于可溶性成分具体和详细分析的样品。 1.2 检测限为0.05 mg/m 3. 通过采样1 m 3. 空气量。 注1: 其他挥发性有机溶剂已用于此测定，虽然此分析可能需要毒性较低的溶剂，但此时替换苯以外的溶剂是不明智的。 多年来，多个行业积累了大量基于苯可溶性测定的环境采样数据。 2. 一些测定结果已用于流行病学研究。此外，现行美国联邦标准中规定了苯的使用。 3. 因此，在苯和替代溶剂的分析建立定性和定量关系之前，使用不同的溶剂似乎是不明智的。 只要小心，苯可以在实验室中安全使用。 1.3 以国际单位制表示的数值应视为标准值。本标准不包括其他计量单位。 1.4 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、健康和环境实践，并确定监管限制的适用性。 1.5 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 本试验方法提供了一种评估与职业暴露相关的浓度范围内苯可溶颗粒物暴露的方法。

1.1 This test method describes the sampling and gravimetric determination of benzene-soluble particulate matter that has become airborne as a result of certain industrial processes. This test method can be used to determine the total weight of benzene-soluble materials and to provide a sample that may be used for specific and detailed analyses of the soluble components. 1.2 The limit of detection is 0.05 mg/m 3 by sampling a 1 m 3 volume of air. Note 1: Other volatile organic solvents have been used for this determination and whereas a less toxic solvent for this analysis might be desirable, the substitution of a solvent other than benzene is unwise at this time. A tremendous volume of environmental sampling data based on benzene-soluble determinations has been accumulated over many years in several industries. 2 Some of the determinations have been used in epidemiological studies. Furthermore, the use of benzene is specified in existing United States federal standards. 3 As a result, it appears imprudent to use a different solvent until the qualitative and quantitative relationship of analyses derived from benzene and a substitute solvent is established. With proper care, benzene can be safely used in the laboratory. 1.3 The values stated in SI units are to be regarded as standard. No other units of measurement are included in this 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. 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 ====== 5.1 This test method provides a means of evaluating exposures to benzene-soluble particulate matter in a concentration range that can be related to occupational exposures.