1.1本规程涉及使用溶剂润湿擦拭采样方法从光滑无孔表面对有机化合物（即多氯联苯、二恶英、许多农药和类似化合物）进行采样。样品的收集方式允许从擦拭布中溶剂萃取感兴趣的有机化合物，并随后使用实验室分析技术（如带有适当检测器的气相色谱法）进行测定。然而，这种做法不适合收集挥发性有机化合物。 1.2本规程仅适用于在装载基础上（例如，单位面积质量）采集用于测定有机化合物的样品。它不能用于收集样品，以在浓度基础上测定有机化合物（例如，每单位质量的质量）。 1.3本擦拭取样规程不建议用于从粗糙或多孔表面（如室内装饰、地毯、砖、粗混凝土、天花板瓷砖和裸木）收集有机化合物样品。 它也不用于收集粉尘样本（见规程 E1278 )或采样以估计人类暴露于受污染表面的情况。 1.4为确保得出有效结论，必须按照抽样设计（包括质量控制样品在内的样品数量和位置）和质量保证/质量控制计划的指示获得足够数量的样品。本规程不涉及用于实现数据质量目标的抽样设计（见规程 D5792 ). 1.5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。 1.6 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和健康实践，并确定监管限制的适用性。 ====意义和用途====== 擦拭取样通常由参与危险废物现场调查的人员使用，以表征墙壁、地板、设备等的面积范围和污染程度。擦拭取样也用于确定是否符合规定。 在擦拭采样期间，有许多因素会导致采样结果的变化，包括对擦拭施加不同压力的使用、不同类型的擦拭、不同的擦拭图案、被擦拭表面的纹理，甚至可能是擦拭的持续时间。该实践的意义在于，它规范了擦拭程序，以减少从建筑物内和周围的光滑无孔表面（如金属、玻璃、涂漆或密封表面、瓷砖等）以及管道、储罐、去污设备等处采集样品时的采样变异性。

1.1 This practice addresses sampling of organic compounds (i.e., PCBs, dioxins, many pesticides and similar compounds) from smooth nonporous surfaces using a solvent-wetted wipe sampling method. Samples are collected in a manner that permits the solvent extraction of the organic compound(s) of interest from the wipes and subsequent determination using a laboratory analysis technique such as gas chromatography with a suitable detector. This practice is, however, unsuitable for the collection of volatile organic compounds. 1.2 This practice should only be used to collect samples for the determination of organic compound(s) on a loading basis (e.g., mass per unit area). It cannot be used to collect samples for the determination of organic compounds on a concentration basis (e.g., mass per unit mass). 1.3 This wipe sampling practice is not recommended for collecting samples of organic compounds from rough or porous surfaces such as upholstery, carpeting, brick, rough concrete, ceiling tiles, and bare wood. It is also not intended for the collection of dust samples (see Practice E1278 ) or sampling to estimating human exposure to contaminated surfaces. 1.4 To ensure valid conclusions are reached, a sufficient number of samples must be obtained as directed by a sampling design (the number and location of samples including quality control samples) and a quality assurance/quality control plan. This practice does not address the sampling designs used to achieve the data quality objectives (see Practice D5792 ). 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 and health practices and determine the applicability of regulatory limitations prior to use. ====== Significance And Use ====== Wipe sampling is typically used by persons involved in hazardous waste site investigations to characterize the areal extent and the level of contamination on walls, floors, equipment, etc. Wipe sampling is also used to determine compliance with regulations. There are many factors that contribute to variation in sampling results during wipe sampling including, the use of different pressures applied to the wipe, different kinds of wipes, different wiping patterns, the texture of the surface being wiped, and perhaps even the duration of wiping. The significance of this practice is that it standardizes wiping procedures to reduce sampling variability in the collection of samples from smooth, nonporous surfaces such as metal, glass, painted or sealed surfaces, tile, etc., in and around buildings, and from pipes, tanks, decontaminated equipment, etc.