1.1 本试验方法涵盖了在中概述的浓度范围内测定采出水和废水样品中的油和油脂 表1 其可以用适于红外的膜提取并且通过穿过膜的红外透射来测量。 1.2 本试验方法将水中的油和油脂定义为可在本试验方法中提取并通过红外透射测量的油和润滑脂。 1.3 方法检测限（MDL）和建议的报告范围列在 表1 . 1.4 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。 1.5 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。 1.6 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是公众关注的问题，因为它对健康、环境、安全和美观有有害影响。 5.2 已经制定了法规和标准，要求对水和废水中的油和油脂进行监测。 4. 注1: 不同的油和油脂材料可能具有不同的红外吸收率。某些材料，如合成硅酮基或全氟油，可能具有与天然油脂材料不一致的吸收率。 当测试怀疑含有这些材料比例的基质时，应注意。在这种情况下，使用这些有问题的材料进行实验室穿刺样本、实验室检查样本、等效性测试或其组合可能是合适的。

1.1 This test method covers the determination of oil and grease in produced and waste water samples over the concentration range outlined in Table 1 that can be extracted with an infrared-amenable membrane and measured by infrared transmission through the membrane. 1.2 This test method defines oil and grease in water as that which is extractable in this test method and measured by infrared transmission. 1.3 The method detection limit (MDL) and recommended reporting range are listed in Table 1 . 1.4 The values stated in SI units are to be regarded as standard. No other units of measurement are included in this standard. 1.5 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. 1.6 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 health, environmental, safety, and aesthetic effects. 5.2 Regulations and standards have been established that require monitoring of oil and grease in water and wastewater. 4 Note 1: Different oil and grease materials may have different infrared absorptivities. Certain materials, such as synthetic silicone-based or perfluorinated oils, may have absoptivities inconsistent with those of naturally occurring oil and grease materials. Caution should be taken when testing matrices suspected of containing proportions of these materials. In such cases, laboratory spike samples, laboratory check samples, equivalency testing, or combinations thereof, using these materials in question may be appropriate.