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Oxygen Enriched Air Nitrox 30% No-Stop Dive Tables

PO2 .85 .94 1.03 1.12 1.21 1.30 139 1.48 1.57

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Enriched Air Nitrox 30% No-Stop Dive Table
60 70 80 90 100 110 120 130 140 For informational and comparative purposes only. Not for actual use. Planning dives using this table could result in DCS. Enriched Air Diving requires specialized training, Do not attempt EANx dives without proper training.
A 7 6 5 4 4 4 3 3 3 > A 0:00 3:00
B 13 11 9 8 7 6 6 5 5 > B 0:00 0:47 0:48 3:48
C 17 14 12 10 9 8 7 6 6 > C 0:00 0:21 0:22 1:09 1:10 4:10
D 19 16 13 11 10 9 8 7 7 > D 0:00 0:08 0:09 0:30 0:31 1:18 1:19 4:19
E 21 17 15 13 11 10 9 8 - > E 0:00 0:07 0:08 0:16 0:17 0:38 0:39 1:27 1:28 4:28
F 24 19 16 14 12 11 10 9 8 > F 0:00 0:07 0:08 0:15 0:16 0:24 0:25 0:46 0:47 1:34 1:35 4:35
G 26 21 18 15 13 12 11 10 9 > G 0:00 0:06 0:07 0:13 0:14 0:22 0:23 0:53 0:32 0:53 0:54 1:41 1:42 4:42
H 28 23 19 17 15 13 12 11 10 > H 0:00 0:05 0:06 0:12 0:13 0:20 0:21 0:28 0:29 0:37 0:38 0:59 1:00 1:47 1:48 4:48
I 31 25 21 18 16 14 13 - > > I 0:00 0:05 0:06 0:11 0:12 0:18 0:19 0:26 0:27 0:34 0:35 0:43 0:44 1:05 1:06 1:53 1:54 4:54
J 33 27 22 19 17 15 - 12 > > J 0:00 0:05 0:06 0:11 0:12 0:17 0:18 0:24 0:25 0:31 0:32 0:40 0:41 0:49 0:50 1:11 1:12 1:59 2:00 5:00
K 36 28 24 21 18 17 14 13 > > K 0:00 0:04 0:05 0:10 0:11 0:16 0:17 0:22 0:23 0:29 0:30 0:37 0:38 0:45 0:46 0:54 0:55 1:16 1:17 2:04 2:05 5:05
L 39 31 26 22 19 18 15 > > > L 0:00 0:04 0:05 0:09 0:10 0:15 0:16 0:21 0:22 0:27 0:28 0:34 0:35 0:42 0:43 0:50 0:51 0:59 1:00 1:21 1:22 2:09 2:10 5:10
M 41 33 27 23 21 19 16 > > > M 0:00 0:04 0:05 0:09 0:10 0:14 0:15 0:19 0:20 0:25 0:26 0:32 0:33 0:39 0:40 0:46 0:47 0:55 0:56 1:04 1:05 1:25 1:26 2:14 2:15 5:15
N 44 35 29 25 22 20 > > > > N 0:00 0:03 0:04 0:08 0:09 0:13 0:14 0:18 0:19 0:24 0:25 0:30 0:31 0:36 0:37 0:43 0:44 0:51 0:52 0:59 1:00 1:08 1:09 0:30 1:31 2:18 2:19 5:19
O 48 37 31 26 23 21 > > > > O 0:00 0:03 0:04 0:08 0:09 0:12 0:13 0:17 0:18 0:23 0:24 0:28 0:29 0:34 0:35 0:41 0:42 0:47 0:48 0:55 0:56 1:03 1:04 1:12 1:13 1:34 1:35 2:23 2:24 5:24
P 50 39 33 28 24 22 > > > > P 0:00 0:03 0:04 0:07 0:08 0:12 0:13 0:16 0:17 0:21 0:22 0:27 0:28 0:32 0:33 0:38 0:39 0:45 0:46 0:51 0:52 0:59 1:00 1:07 1:08 1:16 1:17 1:38 1:39 2:27 2:28 5:28
Q 53 42 35 29 25 > > > > > Q 0:00 0:03 0:04 0:07 0:08 0:11 0:12 0:16 0:17 0:20 0:21 0;25 0:26 0:30 0:31 0:36 0:37 0:42 0:43 0:48 0:49 0:55 0:56 0:59 1:04 1:11 1:12 1:20 1:21 1:42 1:43 2:30 2:31 5:31
R 57 44 36 30 > > > > > R 0:00 0:03 0:04 0:07 0:08 0:11 0:12 0:15 0:16 0:19 0:20 0:24 0:25 0:29 0:30 0:34 0:35 0:40 0:41 0:46 0:47 0:52 0:53 0:59 1:00 1:07 1:08 1:15 1:16 1:24 1:25 1:46 1:47 2:34 2:35 5:35
S 60 47 38 > > > > > S 0:00 0:02 0:03 0:06 0:07 0:10 0:11 0:14 0:15 0:18 0:19 0:23 0:24 0:27 0:28 0:32 0:33 0:38 0:39 0:43 0:44 0:49 0:50 0:56 0:57 1:03 1:04 1:10 1:11 1:18 1:19 1:27 1:28 1:49 1:50 2:38 2:39 5:39
T 63 19 40 > > > > T 0:00 0:02 0:03 0:06 0:07 0:09 0:11 0:13 0:14 0:17 0:18 0:22 0:23 0:26 0:27 0:31 0:32 0:36 0:37 0:41 0:42 0:47 0:48 0:53 0:57 0:59 1:00 1:06 1:07 1:13 1:14 1:22 1:23 1:31 1:32 1:53 1:54 2:41 2:42 5:42
U 62 52 > > > > U 0:00 0:02 0:03 0:05 0:06 0:09 0:10 0:12 0:14 0:17 0:18 0:21 0:22 0:25 0:26 0:29 0:30 0:34 0:35 0:39 0:40 0:44 0:45 0:50 0:51 0:56 0:57 1:02 1:03 1:09 1:10 1:17 1:18 1:25 1:26 1:34 1:35 1:56 1:57 2:44 2:45 5:45
V 71 54 > > > V 0:00 0:02 0:03 0:05 0:06 0:08 0:09 0:12 0:13 0:15 0:17 0:20 0:21 0:24 0:25 0:28 0:29 0:33 0:34 0:37 0:38 0:42 0:43 0:47 0:48 0:53 0:54 0:59 1:00 1:05 1:06 1:12 1:13 1:20 1:21 1:28 1:29 1:37 1:38 1:59 2:00 2:47 2:48 5:48
W 75 55 > > W 0:00 0:02 0:03 0:05 0:06 0:08 0:09 0:11 0:12 0:15 0:16 0:18 0:20 0:23 0:24 0:27 0:28 0:31 0:32 0:36 0:37 0:40 0:41 0:45 0:46 0:50 0:51 0:56 0:57 1:02 1:03 1:08 1:09 1:15 1:16 1:23 1:24 1:31 1:32 1:40 1:41 2:02 2:03 2:50 2:51 5:51
X 80 > > X 0:00 0:02 0:03 0:05 0:06 0:08 0:09 0:11 0:12 0:14 0:15 0:18 0:19 0:21 0:23 0:26 0:27 0:30 0:31 0:34 0:35 0:39 0:40 0:43 0:44 0:48 0:49 0:53 0:54 0:59 1:00 1:05 1:06 1:11 1:12 1:18 1:19 1:26 1:27 1:34 1:35 1:43 1:44 2:05 2:06 2 :53 2:54 5:54
Z Y X W V U T S R Q P O N M L K J I H G F E D C B A

Z Y X W V U T S R Q P O N M L K J I H G F E D C B A
60 80 75 71 67 63 60 57 53 50 47 44 41 38 36 33 31 28 26 24 21 19 17 13 7
5 9 13 17 20 23 27 30 33 36 38 42 44 47 49 52 54 56 59 61 63 67 73
70 55 54 52 49 47 44 42 39 37 35 33 31 29 27 25 23 21 19 17 16 14 11 6
1 3 6 8 11 13 16 18 20 22 24 26 28 30 32 34 36 38 39 41 44 49
80 40 38 36 34 33 31 29 27 26 24 22 21 19 18 16 15 13 12 9 5
2 4 6 7 9 11 13 14 16 18 19 21 22 24 25 27 28 31 35
90 30 29 28 26 25 23 22 21 19 18 17 15 14 13 11 10 8 4
2 4 5 7 8 9 11 12 13 15 16 17 19 20 22 26
100 25 24 23 22 21 19 18 17 16 15 13 12 11 10 9 7 4
2 3 4 6 7 8 9 10 12 13 14 15 16 18 21
110 20 19 18 17 16 15 14 13 15 11 10 9 8 6 2
2 3 4 5 6 7 8 9 10 11 12 14 17
120 16 15 14 14 13 12 11 10 9 8 7 6 3
2 2 3 4 5 6 7 8 9 10 13
130 13 12 12 11 10 9 8 7 6 5 3
2 3 4 5 6 7 8 10
140 10 9 8 8 7 6 5 3
3 4 5 7

Residual Nitrogen Time (In Minutes) 21 Not for Actual Use: While this table is based on a popular, well proven dive table using an equivalent air depth (EAD) conversion, no promise can be made concerning its accuracy or level of risk. It is presented for comparison purposes only. Divers planning and making enriched air nitrox dives should seek specialized training to reduce their risk exposure.
Adjusted No-Stop Time (In Minutes) 59





Considering today's use of a 1.4 PO2 maximum exposure table EAN30 probably makes a better standard mix than EAN32. With an oxygen percentage of 30 percent the diver may explore to a depth of 120 fsw. It is in this depth range that narcosis begins to become a problem and helium should be added to the breathing mixuture. As such, EAN30 provides plenty of depth range, reasonable bottom times and simple logistics for common dives along the U.S. East Coast.

The above table is provided solely for compariative and informational purposes. The accuracy and safety of its use cannot be guaranteed. It was compiled using a common and popular no-stop tables format and applying the equivalent air depth formula. A table designed specifically for EAN30 would likely result in slightly longer bottom times at some depths.

Divers interested in Oxygen Enriched Air Nitrox Diving should seek specialized training from a qualified instructor. Such training should be sanctioned by a recognized training association such as NAUI or PADI. Attempting to make EANx dives without proper training, or using the above tables, could result in your personal injury or death.

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