NOAA NO-DECOMPRESSION TABLE MULTIPLE AIR DIVES WARNING: EVEN STRICT COMPLIANCE WITH THESE CHARTS WILL NOT GUARANTEE AVOIDANCE OF DECOMPRESSION SICKNESS. CONSERVATIVE USAGE IS STRONGLY RECOMMENDED. (USE ESDT TO DETERMINE END-OF-DIVE LETTER GROUP) RESIDUAL NITROGEN TIME ACTUAL BOTTOM TIME EQUIVALENT SINGLE DIVE TIME RNT + ABT ESDT 12.2 15.2 16.8 18.3 21.4 24.4 27.4 30.5 33.6 36.6 39.6 9 8 7 6 5 4 4 3 3 2 15 14 12 10 9 7 6 6 5 4 21 19 17 14 12 11 9 8 7 6 28 25 22 19 16 14 12 11 10 9 34 31 28 23 20 17 15 14 12 10 41 37 33 28 24 21 18 16 15 48 43 39 32 28 24 21 19 56 50 45 37 32 28 25 63 56 51 42 36 71 63 57 47 80 71 89 74 50 55 60 70 80 90 100 110 120 130 6:08 5:14 1:44 :53 2:20 :10 3:36 1:17 4:31 2:12 5:23 3:04 6:15 3:56 7:08 4:49 8:00 5:41 8:52 6:33 9:44 7:25 10:36 8:17 11:29 9:10 12:21 10:02 13:13 10:54 14:05 11:46 1:16 :10 2:11 :56 3:03 1:48 3:55 2:40 4:48 3:32 5:40 4:24 6:32 5:17 7:24 6:09 8:16 7:01 9:09 7:53 10:01 8:45 10:53 9:38 11:45 10:30 :55 :10 1:47 :53 2:39 1:45 3:31 2:38 4:23 3:30 5:16 4:22 7:00 6:07 7:52 6:59 8:44 7:51 9:37 8:43 10:29 9:35 :52 :10 2:37 1:45 3:29 2:38 4:21 3:30 5:13 4:22 6:06 5:14 6:58 6:07 7:50 6:59 8:42 7:51 9:34 8:43 :52 :10 1:44 :53 2:37 1:45 3:29 2:38 4:21 3:30 5:13 4:22 6:06 5:14 6:58 6:07 7:50 6:59 8:42 7:51 :52 :10 1:44 :53 2:37 1:45 3:29 2:38 4:21 3:30 5:13 4:22 6:06 5:14 6:58 6:07 7:50 6:59 :52 :10 1:44 :53 2:37 1:45 3:29 2:38 4:21 3:30 5:13 4:22 6:06 5:14 6:58 6:07 :52 :10 1:44 :53 2:37 1:45 3:29 2:38 4:21 3:30 5:13 4:22 6:06 5:14 :52 :10 1:44 :53 2:37 1:45 3:29 2:38 4:21 3:30 5:13 4:22 :52 :10 1:44 :53 2:37 1:45 3:29 2:38 4:21 3:30 :52 :10 1:44 :53 2:37 1:45 3:29 2:38 :52 :10 1:44 :53 2:37 1:45 :52 :10 1:44 :53 :52 :10 00 00 A B C D E F G H I J K L M N GROUP LETTER CHART 1 — DIVE TIMES WITH END-OF-DIVE GROUP LETTER CHART 3 — REPETITIVE DIVE TIME RED NUMBERS (TOP) ARE RESIDUAL NITROGEN TIMES (RNT) BLACK NUMBERS (BOTTOM) ARE ADJUSTED NO-STOP REPETITIVE DIVE TIME AND THE FOLLOWING BOTTOM TIME SHOULD NOT EXCEED THIS NUMBER DEPTH msw fsw MAXIMUM NO-STOP TIME DIVE TIME REQUIRING DECOMPRESSION STOP MINUTES REQUIRED AT 20 fsw stop (6.1 msw) 00 00 00 80 14 65 2 50 17 45 10 20 2 30 24 25 8 45 23 35 4 40 14 40 26 30 3 35 27 15 1 25 17 20 4 25 3 100 4 O 92 60 48 39 30 20 14:58 12:38 12:37 11:22 11:21 10:28 10:27 9:35 9:34 8:43 8:42 7:51 7:50 6:59 6:58 6:07 6:06 5:14 5:13 4:22 4:21 3:30 3:29 2:38 2:37 1:45 1:44 :53 :52 :10 Z 15:50 13:31 13:30 12:14 12:13 11:20 11:19 10:28 9:34 8:43 8:42 7:51 7:50 6:59 6:58 6:07 6:06 5:14 5:13 4:22 4:21 3:30 3:29 2:38 2:37 1:45 1:44 :53 :52 :10 10:27 9:35 O Z 12 20 27 36 44 53 63 73 84 95 108 121 135 151 163 40 40 12.2 50 15.2 55 16.8 60 18.3 70 21.4 80 24.4 90 27.4 100 30.5 110 33.6 120 36.6 130 39.6 CHART 2 — SURFACE INTERVAL TIME Time Ranges in hours: minutes Enter Chart 2 from the top, move down to find surface interval time, move left to find the next repetitive group letter. 180 14 35 15 30 14 110 8 130 34 60 14 55 9 90 23 80 4 90 10 100 17 13 150 11 81 10 64 9 51 8 40 7 32 6 24 5 20 5 15 5 10 4 6 21 142 17 75 15 59 14 46 12 36 10 29 9 21 8 17 8 12 7 8 6 4 29 134 23 69 20 54 19 41 16 32 14 25 12 18 11 14 10 10 9 6 9 1 37 126 29 63 26 48 24 36 20 28 18 21 16 14 14 11 13 7 12 3 45 118 35 57 32 42 29 31 25 23 22 17 19 11 17 8 16 4 55 108 42 50 38 36 35 25 29 19 25 14 22 8 20 5 18 2 64 99 49 43 44 30 40 20 34 14 29 10 26 4 23 2 74 89 57 35 51 23 46 14 39 9 33 6 29 1 152 11 85 78 65 27 58 16 52 8 44 4 38 1 122 41 136 27 97 66 73 19 65 9 58 2 90 2 72 2 81 11 109 54 COPYRIGHT 2010 BY NOAA/BPC THESE CHARTS ARE BASED ON THE U.S. NAVY AIR DECOMPRESSION TABLES 7, 8, & 9 REV. 6 14 1