ATA Pro
Technical Manual
Int. Approved
Document ref: HEL-810-12
December 2017
Page 17 of 27
Copyright © 2017 Analox Ltd. All Rights Reserved.
Commercial in Confidence
8.
Altitude Correction Chart
Altitude
Pressure
Atmospheric O2 concentration
Feet
Meters
in Bar
PP O2 mbar SEV %O2
-1000
-305
1.03
217
21.67
0
0
1
209
20.9
1000
305
0.97
202
20.16
2000
610
0.94
194
19.43
3000
914
0.92
187
18.73
4000
1219
0.89
181
18.05
5000
1524
0.86
174
17.39
6000
1829
0.84
168
16.75
7000
2134
0.81
161
16.13
8000
2438
0.79
155
15.53
9000
2743
0.76
149
14.94
10000
3048
0.74
144
14.38
11000
3353
0.72
138
13.83
12000
3658
0.69
133
13.3
13000
3962
0.67
128
12.78
14000
4267
0.65
123
12.28
15000
4572
0.63
118
11.8
16000
4877
0.61
113
11.33
17000
5182
0.59
109
10.88
18000
5486
0.57
104
10.44
19000
5791
0.55
100
10.02
20000
6096
0.53
96
9.61
Pressure will vary depending on altitude, but will not lead to significant error in
your readings.
Copyright © 2002: Analox Group, 15 Ellerbeck Court, Stokesley Business Park,
North Yorkshire, UK. TS9 5PT.
All Worldwide Rights Reserved.