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Tables and Charts
Tables and Charts
Maximum Operating Depth (in fsw) for Various Nitrox Mixes
Percent O2 21% 22% 24% 26% 28% 30% 32% 34% 36% 38% 40%
PO2
1.0 ata 124 117 104 93 84 77 70 64 58 53 49
1.1 ata 139 132 118 106 96 88 80 73 67 62 57
1.2 ata 155 147 132 119 108 99 90 83 77 71 66
1.3 ata 171 162 145 132 120 110 101 93 86 79 74
1.4 ata 187 177 159 144 132 121 111 102 95 88 82
1.5 ata 202 192 173 157 143 132 121 112 104 97 90
1.6 ata 218 207 187 170 155 143 132 122 113 105 99
TABLE SHOWS MAXIMUM OPERATING DEPTH FOR BREATHING GASES FROM AIR TO EAN40. FOR INTERMEDIATE OXYGEN FRACTIONS, USE THE NEXT
RICHER MIX. FRACTIONAL DEPTHS HAVE BEEN ROUNDED DOWN TO THE NEXT SHALLOWER WHOLE NUMBER. DEPTHS GREATER THAN 130 FSW ARE
SHADED DARK. MODS FOR THE RECOMMENDED MAXIMUM EXPOSURE OF 1.4 ATA ARE LIGHTLY SHADED.
Maximum Operating Depth (in msw) for Various Nitrox Mixes
Percent O2 21% 22% 24% 26% 28% 30% 32% 34% 36% 38% 40%
PO2
1.0 ata 38 35 31 28 26 23 21 19 17 16 15
1.1 ata 42 40 36 32 29 26 24 22 20 18 17
1.2 ata 47 44 40 36 33 30 27 25 23 21 20
1.3 ata 52 49 44 40 36 33 30 28 26 24 22
1.4 ata 57 54 48 43 40 36 33 31 28 26 25
1.5 ata 61 58 52 47 43 40 36 34 31 29 27
1.6 ata 66 63 57 51 47 43 40 37 34 32 30
TABLE SHOWS MAXIMUM OPERATING DEPTH FOR BREATHING GASES FROM AIR TO EAN40. FOR INTERMEDIATE OXYGEN FRACTIONS, USE THE NEXT
RICHER MIX. FRACTIONAL DEPTHS HAVE BEEN ROUNDED DOWN TO THE NEXT SHALLOWER WHOLE NUMBER. DEPTHS GREATER THAN 40 MSW ARE
SHADED DARK. MODS FOR THE RECOMMENDED MAXIMUM EXPOSURE OF 1.4 ATA ARE LIGHTLY SHADED.