Bottom Time Partial Pressure

PpO2 Oxygen partial pressure in ata O2 Oxygen percentage in the mixture Example. A diver is at 250 fsw breathing a 17.0 percent oxygen mixture. The oxygen partial pressure is To dive in accordance with this section 1. Determine the bottom time that will be required to complete the task. 2. From Table 14-4, select the oxygen partial pressure that corresponds to this bottom time. If the bottom time is not exactly equal to the times listed in the table, round to the next longer bottom time. 3....