9-58 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
90
27.4
80
24.3
70
21.3
60
18.2
50
15.2
40
12.1
30
9.1
20
6.0
10
3.0
140
42.6
10
0
4:40
*
15
4:20
2
6:40
G
20
4:20
6
10:40
I
25
4:00
2
14
20:40
J
30
4:00
5
21
30:40
K
40
3:40
2
16
26
48:40
N
50
3:40
6
24
44
78:40
O
60
3:40
16
23
56
99:40
Z
70
3:20
4
19
32
68
127:40
Z
80
3:20
10
23
41
79
157:40
Z
Exceptional
Exposure
90
3:00
2
14
18
42
88
168:40
**
120
3:00
12
14
36
56
120
242:40
**
180
2:40
10
26
32
54
94
168
388:40
**
240
2:20
8
28
34
50
78
124
187
513:40
**
360
2:00
9
32
42
64
84
122
142
187
686:40
**
480
2:00
31
44
59
100
114
122
142
187
803:40
**
720
1:40
16
56
88
97
100
114
122
142
187
926:40
**
150
45.7
5
0
5:00
C
10
4:40
1
6:00
E
15
4:40
3
8:00
G
20
4:20
2
7
14:00
H
25
4:20
4
17
26:00
K
30
4:20
8
24
37:00
L
40
4:00
5
19
33
62:00
N
50
4:00
12
23
51
91:00
O
60
3:40
3
19
26
62
115:00
Z
70
3:40
11
19
39
75
149:00
Z
80
3:20
1
17
19
50
84
176:00
Z
160
48.7
5
0
5:20
D
10
5:00
1
6:20
F
15
4:40
1
4
10:20
H
20
4:40
3
11
19:20
J
25
4:40
7
20
32:20
K
30
4:20
2
11
25
43:20
M
40
4:20
7
23
39
74:20
N
50
4:00
2
16
23
55
101:20
Z
60
4:00
9
19
33
69
135:20
Z
Exceptional
Exposure
70
3:40
1
17
22
44
80
169:20
**
