9-56 Change A
U.S. Navy Diving Manual—Volume 2
* See No Decompression Table for repetitive groups
** Repetitive dives may not follow exceptional exposure dives
Table 9-8. U.S. Navy Standard Air Decompression Table (Continued).
Bottom
time
(min)
Time
first stop
(min:sec)
Decompression stops (feet/meters)
Total
decompression
time
(min:sec)
Repetitive
group
Depth
feet/meters
50
15.2
40
12.1
30
9.1
20
6.0
10
3.0
80
24.3
40
0
2:40
*
50
2:20
10
12:40
K
60
2:20
17
19:40
L
70
2:20
23
25:40
M
80
2:00
2
31
35:40
N
90
2:00
7
39
48:40
N
100
2:00
11
46
59:40
O
110
2:00
13
53
68:40
O
120
2:00
17
56
75:40
Z
130
2:00
19
63
83:40
Z
140
2:00
26
69
97:40
Z
150
2:00
32
77
111:40
Z
Exceptional
Exposure
180
2:00
35
85
122:40
**
240
1:40
6
52
120
180:40
**
360
1:40
29
90
160
281:40
**
480
1:40
59
107
187
355:40
**
720
1:20
17
108
142
187
456:40
**
90
28.7
30
0
3:00
*
40
2:40
7
10:00
J
50
2:40
18
21:00
L
60
2:40
25
28:00
M
70
2:20
7
30
40:00
N
80
2:20
13
40
56:00
N
90
2:20
18
48
69:00
O
100
2:20
21
54
78:00
Z
110
2:20
24
61
88:00
Z
120
2:20
32
68
103:00
Z
130
2:00
5
36
74
118:00
Z
100
30.4
25
0
3:20
*
30
3:00
3
6:20
I
40
3:00
15
18:20
K
50
2:40
2
24
29:20
L
60
2:40
9
28
40:20
N
70
2:40
17
39
59:20
O
80
2:40
23
48
74:20
O
90
2:20
3
23
57
86:20
Z
100
2:20
7
23
66
99:20
Z
110
2:20
10
34
72
119:20
Z
120
2:20
12
41
78
134:20
Z
Exceptional
Exposure
180
2:00
1
29
53
118
204:20
**
240
2:00
14
42
84
142
285:20
**
360
1:40
2
42
73
111
187
418:20
**
480
1:40
21
61
91
142
187
505:20
**
720
1:40
55
106
122
142
187
615:20
**
