CHAPTER 9 — Air Decompression
Change A 9-65
Table 9-9. Surface Decompression Table Using Oxygen (Continued).
Time (min) breathing air
at water stops (feet/meters)
Bottom
time
(min)
Time to
first stop or
surface
(min:sec)
Time at
40-foot
chamber
stop (min) on
oxygen
Surface
Total
decompression
time
(min:sec)
Depth
feet/meters
60
18.2
50
15.2
40
12.1
30
9.1
Surface
Interval
160
48.7
5
5:20
5:20
20
5:20
11
21:40
25
5:20
16
26:40
30
4:20
2
21
33:40
35
4:00
4
6
26
46:40
40
3:40
3
5
8
32
63:40
45
3:20
3
4
8
6
38
74:40
170
51.8
5
5:40
5:40
20
5:40
13
24:00
25
5:40
19
30:00
30
4:20
3
5
23
42:00
35
4:00
4
4
7
29
55:00
40
3:40
4
4
8
6
36
74:00
