虽然有机物的渗透和吸附 聚氯乙烯（PVC）管材中的溶剂 已经研究过了，但还没有足够的研究 记录的管道对渗透的敏感性 被污染的地下环境。这 这项研究调查了有机污染物的渗透 通过PVC管通过蒸汽和 水相。 作者采用了管瓶试验、重量分析法 吸附测试和微观可视化 用于研究苯、甲苯、， 和三氯乙烯通过1英寸。聚氯乙烯 蒸汽和水相的管道。测试结果 表明PVC管材是一种有效的管材 防止苯、甲苯、， 饱和汽油中的乙苯和二甲苯 蒸汽或汽油饱和的地下水 在典型的污染场所。 这些发现为预测 达到的阈值污染水平 PVC管道容易渗透 如果暴露在蒸汽或水溶液中 指有机化合物。公用事业和监管机构 你可以利用这些信息做出决定 关于更换污染环境中的PVC管道 地区。包括15个参考文献、图表。

Although permeation and sorption of organic solvents in polyvinyl chloride (PVC) pipe materials have been studied, no research has sufficiently documented pipe susceptibility to permeation in the contaminated subsurface environment. This study investigated the permeation of organic contaminants through PVC pipe via the vapor and aqueous phases. The authors used pipe-bottle tests, gravimetric sorption tests, and microscopic visualization tests to study the permeation of benzene, toluene, and trichloroethylene through 1-in. PVC pipe from vapor and aqueous phases. Test results show that PVC pipe materials are an effective barrier against the permeation of benzene, toluene, ethylbenzene, and xylenes in either gasoline-saturated vapors or gasoline-saturated groundwater at typical contaminated sites. These findings provide a basis for predicting the threshold contamination level at which PVC pipes would be susceptible to permeation if exposed to the vapors or aqueous solutions of organic compounds. Utilities and regulators can use this information to make decisions about replacing their PVC pipes in contaminated areas. Includes 15 references, figures.