Phase: Cyanopropylphenyl Polysiloxane - US EPA 624 optimized column - Designed for volatiles analysis - Ideal for EPA624, SW-846 and 8240/8260 methods - Ideal for USP G43 method Application areas: EPA method 624, drinking water volatiles, chlorinated hydrocarbons, solvents. Suitable replacement for: DB-624, OV-624, AT-624, HP-VOC, CP-Select624CB, 007-624, Rtx-Volatiles, VOCOL, ZB-624.