DANGER! READ WARNINGS!! | |
![]() If these or any other dive tables are used incorrectly, it is possible to develop decompression sickness which may result in severe injury or death. Although statistically less likely, it is also possible to develop decompression sickness even if these or any other dive tables are used correctly. The use of these tables to conduct multi-level dives is discouraged. In the case of a diving accident or illness, call the Divers Alert Network (DAN) at the 24-hour emergency line (919) 684-8111. Production of the plastic version of these tables was made possible by the National Association of Underwater Instructors (NAUI), P.O. Box 14650, Montclair, CA 91763-1150; (909) 621-5801. Distributed by the USC Catalina Hyperbaric Chamber, P.O. Box 5069, Avalon, CA 90704; (310) 510-4020. Revised December 3, 1996. |
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Table 1 - End-of-Dive
Repetitive Letter Group Total Time Underwater (in minutes) |
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Depth (in fsw) |
End-of-Dive Repetitive Letter Group | |||||||||||||
A | B | C | D | E | F | G | H | I | J | K | L | M | N | |
20 |
10 | 25 | 40 | 60 | 85 | 110 | 135 | 170 | 215 | 275 | 325 | 569 | 999 | |
30 |
5 | 15 | 25 | 40 | 50 | 65 | 75 | 95 | 110 | 130 | 150 | 175 | 205 | 225 |
35 |
5 | 15 | 20 | 30 | 40 | 50 | 60 | 70 | 85 | 100 | 120 | 135 | 155 | 165 |
40 |
5 | 10 | 20 | 25 | 35 | 40 | 45 | 55 | 60 | 70 | 85 | 100 | 120 | 135 |
50 |
- | 10 | 15 | 20 | 25 | 30 | 35 | 37 | 40 | 50 | 55 | 60 | 70 | 75 |
60 |
- | 5 | 10 | 15 | 20 | 23 | 25 | 27 | 30 | 35 | 40 | 45 | 47 | 50 |
70 |
- | 5 | 10 | 13 | 15 | 17 | 20 | 23 | 25 | 27 | 30 | 33 | 35 | 40 |
80 |
- | 5 | 7 | > | 10 | 13 | 15 | 17 | 20 | > | 25 | 27 | > | 30 |
90 |
- | - | 5 | 7 | > | 10 | > | 13 | 15 | 17 | > | 20 | 23 | 25 |
100 |
- | - | - | 5 | 7 | > | > | 10 | > | > | 13 | 15 | 17 | 20 |
110 |
- | - | - | - | 5 | > | 7 | > | > | 10 | > | > | 13 | 15 |
120 |
- | - | - | - | - | 5 | > | > | 7 | > | > | 10 | | | | |
130 |
- | - | - | - | - | 5 | | | | | | | | | | | | | | | | |
A | B | C | D | E | F | G | H | I | J | K | L | M | N | |
Table 2 - Surface Interval
Time Table (hours:minutes) |
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New Group |
Repetitive Group Letter at Start of Surface Interval | |||||||||||||
A | B | C | D | E | F | G | H | I | J | K | L | M | N | |
N | . | | | . | | | . | | | . | | | . | | | . | | | . | 0:10 |
M | . | | | . | | | . | | | . | | | . | | | . | | | 0:10 |
0:18 |
L | . | | | . | | | . | | | . | | | . | | | . | 0:10 |
0:24 |
0:33 |
K | . | | | . | | | . | | | . | | | . | | | 0:10 |
0:24 |
0:40 |
0:49 |
J | . | | | . | | | . | | | . | | | . | 0:10 |
0:26 |
0:42 |
0:58 |
1:07 |
I | . | | | . | | | . | | | . | | | 0:10 |
0:29 |
0:45 |
1:01 |
1:17 |
1:26 |
H | . | | | . | | | . | | | . | 0:10 |
0:30 |
0:51 |
1:07 |
1:22 |
1:39 |
1:48 |
G | . | | | . | | | . | | | 0:10 |
0:34 |
0:54 |
1:15 |
1:31 |
1:46 |
2:03 |
2:12 |
F | . | | | . | | | . | 0:10 |
0:34 |
1:02 |
1:22 |
1:43 |
1:59 |
2:14 |
2:31 |
2:40 |
E | . | | | . | | | 0:10 |
0:43 |
1:07 |
1:35 |
1:55 |
2:16 |
2:32 |
2:47 |
3:04 |
3:13 |
D | . | | | . | 0:10 |
0:50 |
1:24 |
1:48 |
2:16 |
2:36 |
2:57 |
3:13 |
3:28 |
3:45 |
3:54 |
C | . | | | 0:10 |
1:04 |
1:44 |
2:18 |
2:42 |
3:10 |
3:30 |
3:51 |
4:07 |
4:22 |
4:39 |
4:48 |
B | . | 0:10 |
1:20 |
2:21 |
3:01 |
3:35 |
3:59 |
4:27 |
4:47 |
5:08 |
5:24 |
5:39 |
5:56 |
6:05 |
A | 0:10 |
2:31 |
3:42 |
4:43 |
5:23 |
5:57 |
6:21 |
6:49 |
7:09 |
7:30 |
7:46 |
8:01 |
8:18 |
8:27 |
Table 3 - Residual Nitrogen Time (min.) | ||||||||||||||
Repetitive Dive Depth (in fsw) |
End-of-Surface Interval Repetitive Letter Group | |||||||||||||
A | B | C | D | E | F | G | H | I | J | K | L | M | N | |
20 |
12 999 |
28 999 |
45 999 |
65 999 |
86 999 |
111 999 |
140 999 |
175 999 |
219 999 |
279 999 |
369 999 |
569 999 |
-- 999 |
-- 999 |
30 |
8 217 |
18 207 |
29 196 |
41 184 |
53 172 |
66 159 |
80 145 |
96 129 |
113 112 |
132 93 |
154 71 |
178 47 |
207 18 |
225 -- |
35 |
7 158 |
16 149 |
24 141 |
34 131 |
44 121 |
53 112 |
62 103 |
73 92 |
86 79 |
103 62 |
122 43 |
139 26 |
158 7 |
165 -- |
40 |
6 129 |
14 121 |
21 114 |
30 105 |
37 98 |
43 92 |
49 86 |
57 78 |
65 70 |
75 60 |
92 43 |
109 26 |
128 7 |
135 -- |
50 |
5 70 |
11 64 |
17 58 |
23 52 |
28 47 |
32 43 |
36 39 |
40 35 |
45 30 |
51 24 |
57 18 |
64 11 |
71 4 |
75 -- |
60 |
4 46 |
9 41 |
14 36 |
19 31 |
22 28 |
24 26 |
27 23 |
30 20 |
34 16 |
38 12 |
43 7 |
47 3 |
52 -- |
53 -- |
70 |
4 36 |
8 32 |
12 28 |
15 25 |
17 23 |
19 21 |
22 18 |
24 16 |
26 14 |
29 11 |
33 7 |
37 3 |
40 -- |
41 -- |
80 |
3 27 |
7 23 |
9 21 |
10 20 |
12 18 |
14 16 |
17 13 |
19 11 |
21 9 |
23 7 |
26 4 |
28 2 |
30 -- |
31 -- |
90 |
3 22 |
6 19 |
8 17 |
8 17 |
9 16 |
11 14 |
12 13 |
14 11 |
16 9 |
18 7 |
21 4 |
23 2 |
25 -- |
26 -- |
100 |
3 17 |
6 14 |
6 14 |
7 13 |
8 12 |
9 11 |
10 10 |
11 9 |
12 8 |
13 7 |
16 4 |
18 2 |
20 -- |
21 -- |
110 |
3 12 |
5 10 |
6 9 |
6 9 |
7 8 |
7 8 |
8 7 |
9 6 |
10 5 |
11 4 |
12 3 |
13 2 |
15 -- |
16 -- |
120 |
2 8 |
5 5 |
5 5 |
5 5 |
6 4 |
6 4 |
7 3 |
8 2 |
8 2 |
9 1 |
10 -- |
11 -- |
12 -- |
13 -- |
130 |
2 3 |
4 1 |
5 -- |
5 -- |
5 -- |
6 -- |
6 -- |
7 -- |
7 -- |
8 -- |
8 -- |
9 -- |
10 -- |
11 -- |
000 000 |
Light face numbers
are Residual Nitrogen Times (RNT) Bold-Italic numbers are Adjusted No-Decompression Limits |