22-14 Change A U.S. Navy Diving Manual—Volume 5 RECOMPRESSION CHAMBER PREDIVE CHECKLIST Equipment Initials Electrical System Lights Carbon dioxide analyzer calibrated Oxygen analyzer calibrated Temperature indicator calibrated Carbon dioxide scrubber operational Chamber conditioning unit operational Direct Current (DC) power supply Ground Fault Interrupter (GFI) Communication System Primary system tested Secondary system tested Fire Prevention System Tank pressurized for chambers with installed fire suppression systems Combustible material in metal enclosure Fire-retardant clothing worn by all chamber occupants Fire-resistant mattresses and blankets in chamber Means of extinguishing a fire Miscellaneous Inside Chamber: CO₂-absorbent canister with fresh absorbent installed Urinal Primary medical kit Ear protection sound attenuators/aural protectors (1 set per person) Must have a 1/16” hole drilled to allow for equalization. Outside Chamber: Heater/chiller unit Stopwatches   for   recompression   treatment   time,   decompression time, personnel leaving chamber time, and cumulative time Fresh CO₂ scrubber canister U.S. Navy Diving Manual, Volume 5 Ventilation bill Chamber log Operating Procedures (OPs) and Emergency Procedures (EPs) Secondary medical kit Bedpan (to be locked in as required) Figure 22-11b.  Recompression Chamber Predive Checklist (sheet 2 of 2).