LT1ESWTR Disinfection Profiling and Benchmarking Technical Guidance Manual2003. Appendix B: "CT VALUES* FOR 4-LOG INACTIVATION OF VIRUSES BY CHLORINE DIOXIDE pH 6-9" "CT VALUES* FOR 3-LOG INACTIVATION OF GIARDIA CYSTS BY CHLORINE DIOXIDE"LT1ESWTR Disinfection Profiling and Benchmarking Technical Guidance Manual