This manual combines the Standard Air Decompression Schedules and Exceptional
Exposure Air Schedules into one table (see Table 9-5). To clearly
distinguish between the standard (normal) and exceptional exposure decompression
schedules, the exceptional exposure schedules have been printed in red.
NOTE|| ||The Commanding Officer must have CNO approval to conduct planned
exceptional exposure dives.
If the bottom time of a dive is less than the first bottom time listed for its depth,
decompression is not required. The divers may ascend directly to the surface at a
rate of 30 feet per minute (fpm). The repetitive group designation for a no-decompression
dive is given in the Unlimited/No-Decompression Table. As noted in the
Standard Air Decompression Table, there are no repetitive group designations for
exceptional exposure dives. Repetitive dives are not permitted following an exceptional
TABLE 9-5 Required Surface Interval Before Ascent to Altitude After Diving.
Divers complete a salvage dive to a depth of 140 fsw for 37 minutes.
They were not unusually cold or fatigued during the dive. Determine the decompression
schedule and the repetitive group designation at the end of the
Select the equal or next deeper depth and the equal or next longer
This would be the 150/40 schedule, repetitive
group designator N (see Figure 9-6).
FIGURE 9-6 Completed Air Diving Chart.