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OXYGEN EXPOSURE LIMITS - NOAA
NORMAL EXPOSURE OXYGEN PARTIAL PRESSURE LIMITS
OXYGEN
PARTIAL
PRESSURE(PO2)
IN ATA
MAXIMUM
DEURATION
FOR A SINGLE
EXPOSURE
MAXIMUM
TOTAL DEURATION
FOR ANY
24 HOUR DAY
.
(min)
(hrs)
(min)
(hrs)
1.6
45
0.75
150
2.5
1.5
120
2.0
180
3.0
1.4
150
2.5
180
3.0
1.3
180
3.0
210
3.5
1.2
210
3.5
240
4.0
1.1
240
4.0
270
4.5
1.0
300
5.0
300
5.0
0.9
360
6.0
360
6.0
0.8
450
7.5
360
7.5
0.7
570
9.5
570
9.5
0.6
720
12.0
720
12.0
NOAA oxygen Partial pressure and Exposure Time Limits for Nitrogen-Oxygen Dives.
3. MOD
NORMOXIC AIR, NOAA NITROX ¥° & ¥±
DEPTH
FSW
DEPTH
MSW
NORMOXIC
AIR
NOAA
NITROX¥°
NOAA
NITROX¥±
40
12
200
400+
400+
45
14
100
310+
400+
50
15
100
200
200
60
18
60
100
100
70
21
50
60
60
80
24
40
50
60
90
27
30
40
50
100
30
25
30
40
110
33
20
25
30
120
36
10
25
.
130
40
10
20
.
Danger Exceed Maximum Operation Depth(MOD)
IDEA NITROX INSTRUCTOR # K00050