Test Kits: Their Evaluation and Uses

tory assistance was furnished by the Philadelphia Water Dept.Barry Silver of the Torresdale Lab. (MRR apparatus and GC/ MS work), Richard Grochowski and associates of the Belmont Lab. (CLLE apparatus) and Alen Hess, Chief of Water Trtmt., reviewed the manuscript. Other analyses were completed by Steve Friant of Drexel Univ., (Head Gas Analysis), and Lewis Brenner of the Philadelphia Police Dept. (GC/MS). The authors are also indebted to the