1.1 本试验方法涵盖 (1) 检测地表和地下饮用水源中石油和石油（水溶性部分）污染物的微量水平（µg/L范围）， (2) 化合物的鉴定，以及 (3) 用污染物浓度预测提醒分析人员。该测试方法有助于识别和量化20至1000µg/L的目标污染物，包括:来自BTEX族的芳香化合物（苯、甲苯、乙苯和二甲苯）和来自多环芳烃（PAH）组的萘的水溶性部分，称为 BTEXN公司 在本试验方法中，在含有高达15 mg/L溶解有机碳（DOC）的水样中。主要方法包括在处理前分析和表征关键进水口位置，并开发污染物库。 水溶性( BTEXN公司 )污染物涉及但不限于石油和燃料，包括商用柴油、汽油、煤油、重油、燃油和润滑油等。 1.2 使用多变量方法分析数据集，以测试污染物识别和量化。多元方法包括分类和回归算法，用于分析实验室获得的荧光EEM数据。这些算法的共同目标是减少多维度，消除荧光和背景信号的噪声。与仪器采集分析软件直接相关的自动识别量化方法可在市场上买到。 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 水源保护需要一种快速可靠的光学方法来识别和量化漏油污染，例如来自苯系物族（苯、甲苯、乙苯和二甲苯）的水溶性芳香化合物部分和来自多环芳烃（PAH）组的萘。 5.2 该测试方法识别污染的存在，并量化目标污染成分，以提供基于阈值的警报信号。 5.3 饮用水处理厂操作员和决策者可以使用该测试方法作为第一道防线，用于最初检测石油产品泄漏，以及跟踪水源水中随时间的衰减，以防止污染物吸收到处理水和处理基础设施中。

1.1 This test method covers the (1) detection of trace level (µg/L range) of oil and petroleum (water-soluble fraction) pollutants in surface and ground drinking water sources, (2) identification of the compounds, and (3) alerting analysts with a contaminant concentration prediction. This test method facilitates identification and quantification from 20 to 1000 µg/L of target contaminants, including: water-soluble fraction of aromatic compounds from the BTEX family (benzene, toluene, ethylbenzene, and xylenes) and naphthalene from the polycyclic aromatic hydrocarbon (PAH) group, referred to as BTEXN in this test method, in water samples with up to 15 mg/L of dissolved organic carbon (DOC). The main approach involves analyzing and characterizing key water intake locations before the treatment and developing the contaminant library. The water-soluble ( BTEXN ) contaminants are associated with, but not limited to petroleum oils and fuels including commercial diesel fuel, gasoline, kerosene, heavy oil, fuel oil and lubricate oil, etc. 1.2 The data sets are analyzed using multivariate methods to test contaminant identification and quantification. The multivariate methods include classification and regression algorithms to analyze fluorescence EEM data acquired in the laboratory. The common goal of these algorithms is to reduce multidimensionality and eliminate noise of fluorescence and background signals. Automated identification-quantification methods linked directly to the instrument acquisition-analysis software are commercially available. 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 Source water protection calls for a rapid and reliable optical method to identify and quantify the oil spill contamination, such as water-soluble fraction of aromatic compounds from the BTEX family (benzene, toluene, ethylbenzene, and xylenes) and naphthalene from the polycyclic aromatic hydrocarbon (PAH) group. 5.2 This test method identifies the presence of contamination and quantifies the target contamination component(s) to provide a threshold-based alert signal. 5.3 This test method can be used by drinking water treatment plant operators and decision makers as a first line of defense for both initially detecting petroleum product spills, as well as tracking attenuation over time, in source water to prevent contaminant uptake into the processed water and treatment infrastructure.