1.1 本试验方法包括通过红外（IR）测定样品中正己烷可提取物质来测定采出水和废水中的总油脂和总石油烃。包括在总油脂估算中的是任何其他可溶于正己烷的化合物。 1.2 本试验方法将采出水和废水中的总油和油脂定义为试验方法中可提取的油和油脂，并通过3.34µm至3.54µm的红外吸收进行测量 µm（2825厘米 -1 至2994厘米 -1 ). 同样，本试验方法将采出水和废水中的总石油烃定义为试验方法中未被硅胶吸附的油和油脂，并通过3.34µm至3.54µm（2825 cm -1 至2994厘米 -1 ). 总油和油脂或总石油碳氢化合物的替代方法，或两者兼而有之，可能会产生不同的结果。 1.3 该方法涵盖了总油和油脂的范围为5 mg/L至175 mg/L，总石油碳氢化合物的范围为5mg/L至50 mg/L。通过提取单独收集的较大或较小的样本体积，可以将范围扩展到较低或较高的水平。 1.4 该测试方法使用具有立方氧化锆晶体的水平衰减全反射率（HATR）。 1.5 本试验方法仅用于现场试验，应按现场试验方法处理。该方法并不打算取代目前使用的基于实验室的监管方法。 1.6 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。 1.7 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。 请参阅指南 第3856页 了解更多信息。 1.8 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 生活和工业废水中油脂的存在和浓度引起了公众的关注，因为其有害的美学影响及其对水生生物的影响。 5.2 已经制定了法规和标准，要求对采出水和废水中的TOG和TPH进行监测。

1.1 This test method covers the determination of total oil and grease, and total petroleum hydrocarbons in produced water and wastewater by an infrared (IR) determination of n-hexane extractable substances from the sample. Included in this estimation of total oil and grease are any other compounds soluble in the n-hexane. 1.2 This test method defines total oil and grease in produced water and wastewater as that which is extractable in the test method and measured by IR absorption from 3.34 µm to 3.54 µm (2825 cm -1 to 2994 cm -1 ). Similarly, this test method defines total petroleum hydrocarbons in produced water and wastewater as that oil and grease which is not adsorbed by silica gel in the test method, and is measured by IR absorption from 3.34 µm to 3.54 µm (2825 cm -1 to 2994 cm -1 ). Alternative methods for total oil and grease or total petroleum hydrocarbons, or both, can produce differing results. 1.3 This method covers the range of 5 mg/L to 175 mg/L for total oil and grease and the range of 5 mg/L to 50 mg/L for total petroleum hydrocarbons. The range may be extended to a lower or higher level by extraction of a larger or smaller sample volume collected separately. 1.4 This test method uses horizontal attenuated total reflectance (HATR) with a cubic zirconia crystal. 1.5 This test method is intended as a field test only and should be treated as such. This method is not intended to replace laboratory-based regulatory methods currently in use. 1.6 The values stated in SI units are to be regarded as standard. No other units of measurement are included in this standard. 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, health, and environmental practices and determine the applicability of regulatory limitations prior to use. See Guide D3856 for more information. 1.8 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 The presence and concentration of oil and grease in domestic and industrial wastewater is of concern to the public because of its deleterious aesthetic effect and its impact on aquatic life. 5.2 Regulations and standards have been established that require monitoring of TOG and TPH in produced water and wastewater.