1.1 本试验方法适用于沸点低于200的大多数可清洗有机化合物的测定 °C且小于2 % 可溶于水。它涵盖了低μg/L至低mg/L浓度范围（见第节 15 和 附录X1 ). 1.2 该试验方法是为分析饮用水而开发的。当验证包括回收添加到代表性基质中的已知浓度的感兴趣化合物时，它也适用于许多环境和废水。 1.3 浓度超过1000μg/L的水中挥发性有机化合物可根据实施规程通过直接水注射测定 D2908 . 1.4 用户有责任确保未测试矩阵测试方法的有效性。 1.5 以国际单位制表示的数值应视为标准。本标准不包括其他计量单位。 1.6 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。 中给出了具体的预防说明 8.5.5.1 . 1.7 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====== 5.1 可净化的有机化合物，包括有机卤化物，已被确定为原水和饮用水中的污染物。这些污染物可能对环境和人类有害。动态顶空取样是在气相色谱分析之前浓缩这些成分的一种普遍适用的方法 ( 1. 5. ). 3. 该试验方法可用于定量测定原水、饮用水和处理过的废水中的可净化有机化合物。

1.1 This test method covers the determination of most purgeable organic compounds that boil below 200 °C and are less than 2 % soluble in water. It covers the low μg/L to low mg/L concentration range (see Section 15 and Appendix X1 ). 1.2 This test method was developed for the analysis of drinking water. It is also applicable to many environmental and waste waters when validation, consisting of recovering known concentrations of compounds of interest added to representative matrices, is included. 1.3 Volatile organic compounds in water at concentrations above 1000 μg/L may be determined by direct aqueous injection in accordance with Practice D2908 . 1.4 It is the user's responsibility to assure the validity of the test method for untested matrices. 1.5 The values stated in SI units are to be regarded as standard. No other units of measurement are included in this standard. 1.6 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. Specific precautionary statements are given in 8.5.5.1 . 1.7 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 Purgeable organic compounds, including organohalides, have been identified as contaminants in raw and drinking water. These contaminants may be harmful to the environment and man. Dynamic headspace sampling is a generally applicable method for concentrating these components prior to gas chromatographic analysis ( 1- 5 ). 3 This test method can be used to quantitatively determine purgeable organic compounds in raw source water, drinking water, and treated effluent water.