APPD Appendix D 99
Appendix D
Equivalent Air Depth (msw)
Figure D-14 Equivalent air depth for various nitrox mixes. A diver diving up to the depth shown in the correct
EANx column would use the depth in the left-hand column of the same row with an air dive table.
Shaded areas have a PO2 between 1.4 ata and 1.6 ata.
Percent
O2
26% 27% 28% 29% 30% 31% 32% 33% 34% 35% 36% 37% 38% 39% 40%
EAD msw
12 13 13 14 14 14 15 15 16 16 16 17 17 18 18 19
15 16 17 17 17 18 18 19 19 20 20 20 21 21 22 22
18 19 20 20 21 21 22 22 23 23 24 24 25 25 26 26
21 23 23 24 24 25 25 26 26 27 27 28 28 29 30 30
24 26 26 27 27 28 28 29 30 30 31 32 32
27 29 30 30 31 31 32 33 33 34 35
30 32 33 33 34 35 35 36 37 37
33 36 36 37 37 38 39 39
36 39 39 40 41 41
40 43 44 44 45
MOD/1.4 ata 43 41 40 38 36 35 33 36 31 30 28 27 26 25 25
MOD/1.6 ata 51 49 47 45 43 41 40 38 37 35 34 33 32 31 30
Equivalent Air Depth (fsw)
Figure D-15 Equivalent air depth for various nitrox mixes. A diver diving up to the depth shown in the correct
EANx column would use the depth in the left-hand column of the same row with an air dive table.
Shaded areas have a PO2 between 1.4 ata and 1.6 ata.
Percent
O2
26% 27% 28% 29% 30% 31% 32% 33% 34% 35% 36% 37% 38% 39% 40%
EAD fsw
40 44 46 47 48 49 50 51 53 54 55 57 58 60 61 63
50 55 56 58 59 60 62 63 64 66 67 69 71 72 74 76
60 66 67 69 70 71 73 75 76 78 80 81 83 85 87 89
70 76 78 80 81 83 84 86 88 90 92 94 96 98 100 99
80 87 89 90 92 94 96 98 100 102 104 106 108 105 102
90 98 100 101 103 105 107 109 112 114 116 113 109
100 108 110 112 114 117 119 121 123 122 117
110 119 121 123 126 128 130 132 127
120 130 132 134 137 139 137
130 141 143 145 148 143
MOD/1.4 ata 145 138 132 126 121 116 111 107 102 99 95 91 88 85 82
MOD/1.6 ata 170 162 155 149 143 137 132 127 122 117 113 109 105 102 99