23.65.00 Cooling Towers
23.65.14.13 Open-Circuit, Induced-Draft Counterflow Cooling Towers
23.65.13 Forced-Draft Cooling Towers 23.65.13.13 Open-Circuit, Forced-Draft Cooling Towers 23.65.13.16 Closed-Circuit, Forced-Draft Cooling Towers 23.65.14 Induced-Draft Cooling Towers 23.65.14.13 Open-Circuit, Induced-Draft Counterflow Cooling Towers 23.65.14.14 Open-Circuit, Induced-Draft Crossflow Cooling Towers 23.65.14.16 Closed-Circuit, Induced-Draft Counterflow Cooling Towers 23.65.14.17 Closed-Circuit, Induced-Draft Combined-Flow Cooling Towers 23.65.16 Natural-Draft Cooling Towers 23.65.23 Field-Erected Cooling Towers 23.65.33 Liquid Coolers