在艾伦·R·贝伦斯（Alan R.Berens）关于“预测有机化学物质通过PVC管道的渗透”（AWWA杂志，1985年11月）的文章中，Pfau指出了贝伦斯工作的重要性，并指出它补充了巴特尔实验室的渗透调查。Battelle的工作涉及商用、无接头和衬垫连接的4英寸水管（PVC、石棉水泥和球墨铸铁），暴露在代表高度污染环境的纯有机溶剂和水溶剂溶液中。在最坏的暴露条件下进行的这些调查，有助于确定渗透的定性性质，并有助于理解通过水管渗透的基本机制。Battelle正在进行的重量吸附研究将有助于验证Berens的结果。

In this discussion of Alan R. Berens' article on "Prediction of Organic Chemical Permeation Through PVC Pipe" (Journal AWWA, November, 1985), Pfau notes the importance of Berens's work and points out that it complements permeation investigations at Battelle Laboratories. The work at Battelle has involved commercially available, unjointed and gasketed-jointed, 4 inch water pipe (PVC, asbestos-cement, and ductile iron) exposed to neat organic solvents and water-solvent solutions representing highly contaminated environments. These investigations under worst-case exposure conditions, are useful in determining the qualitative nature of permeation and in understanding basic mechanisms of permeation through water pipes. Gravimetric adsorption studies being conducted at Battelle will serve to verify Berens's results.