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D.O. Saturation Chart
The saturation concentation must be calculated manually using the standard reference chart below. Use the
reference value from the chart to determine the calibration for the probe at 100% saturation.
Oxygen Saturation Table (in mg/l or ppm)
(assume elevation at sea level and 100% water saturation of air above sample)
) ppm/1000
t
p
p
(
y
t
i
n
i
l
a
S
p
m
e
T
(°C)
0
2
4
6
8
10
12
14
16
18
20
22
24
26
28
30
32
34
0
14.6 14.4 14.2 14.0 13.8 13.6 13.4 13.3 13.1 12.9 12.7 12.6 12.4 12.2 12.0 11.9 11.7 11.6
1
14.2 14.0 13.8 13.6 13.4 13.3 13.1 12.9 12.7 12.6 12.4 12.2 12.1 11.9 11.7 11.6 11.4 11.3
2
13.8 13.6 13.4 13.3 13.1 12.9 12.7 12.6 12.4 12.2 12.1 11.9 11.7 11.6 11.4 11.3 11.1 11.0
3
13.4 13.3 13.1 12.9 12.7 12.6 12.4 12.2 12.1 11.9 11.8 11.6 11.4 11.3 11.1 11.0 10.8 10.7
4
13.1 12.9 12.7 12.6 12.4 12.2 12.1 11.9 11.8 11.6 11.5 11.3 11.2 11.0 10.9 10.7 10.6 10.4
5
12.7 12.6 12.4 12.3 12.1 11.9 11.8 11.6 11.5 11.3 11.2 11.0 10.9 10.7 10.6 10.5 10.3 10.2
6
12.4 12.3 12.1 11.9 11.8 11.6 11.5 11.3 11.2 11.0 10.9 10.8 10.6 10.5 10.3 10.2 10.1
9.9
7
12.1 12.0 11.8 11.7 11.5 11.4 11.2 11.1 10.9 10.8 10.6 10.5 10.4 10.2 10.1 10.0
9.8
9.7
8
11.8 11.7 11.5 11.4 11.2 11.1 10.9 10.8 10.7 10.5 10.4 10.3 10.1 10.0
9.9
9.7
9.6
9.5
9
11.5 11.4 11.2 11.1 11.0 10.8 10.7 10.5 10.4 10.3 10.2 10.0
9.9
9.8
9.6
9.5
9.4
9.3
10
11.3 11.1 11.0 10.8 10.7 10.6 10.4 10.3 10.2 10.0
9.9
9.8
9.7
9.6
9.4
9.3
9.2
9.1
11
11.0 10.9 10.7 10.6 10.5 10.3 10.2 10.1
9.9
9.8
9.7
9.6
9.5
9.3
9.2
9.1
9.0
8.9
12
10.8 10.6 10.5 10.4 10.2 10.1 10.0
9.9
9.7
9.6
9.5
9.4
9.3
9.1
9.0
8.9
8.8
8.7
13
10.5 10.4 10.3 10.1 10.0
9.9
9.8
9.6
9.5
9.4
9.3
9.2
9.1
8.9
8.8
8.7
8.6
8.5
14
10.3 10.2 10.0
9.9
9.8
9.7
9.6
9.4
9.3
9.2
9.1
9.0
8.9
8.8
8.7
8.5
8.4
8.3
15
10.1
9.9
9.8
9.7
9.6
9.5
9.3
9.2
9.1
9.0
8.9
8.8
8.7
8.6
8.5
8.4
8.3
8.2
16
9.8
9.7
9.6
9.5
9.4
9.3
9.2
9.0
8.9
8.8
8.7
8.6
8.5
8.4
8.3
8.2
8.1
8.0
17
9.6
9.5
9.4
9.3
9.2
9.1
9.0
8.9
8.8
8.6
8.5
8.4
8.3
8.2
8.1
8.0
7.9
7.9
18
9.4
9.3
9.2
9.1
9.0
8.9
8.8
8.7
8.6
8.5
8.4
8.3
8.2
8.1
8.0
7.9
7.8
7.7
19
9.3
9.1
9.0
8.9
8.8
8.7
8.6
8.5
8.4
8.3
8.2
8.1
8.0
7.9
7.8
7.7
7.6
7.6
20
9.1
9.0
8.9
8.8
8.6
8.5
8.4
8.3
8.2
8.2
8.1
8.0
7.9
7.8
7.7
7.6
7.5
7.4
21
8.9
8.8
8.7
8.6
8.5
8.4
8.3
8.2
8.1
8.0
7.9
7.8
7.7
7.6
7.5
7.5
7.4
7.3
22
8.7
8.6
8.5
8.4
8.3
8.2
8.1
8.0
7.9
7.9
7.8
7.7
7.6
7.5
7.4
7.3
7.2
7.2
23
8.6
8.5
8.4
8.3
8.2
8.1
8.0
7.9
7.8
7.7
7.6
7.5
7.4
7.4
7.3
7.2
7.1
7.0
24
8.4
8.3
8.2
8.1
8.0
7.9
7.8
7.7
7.7
7.6
7.5
7.4
7.3
7.2
7.1
7.1
7.0
6.9
25
8.2
8.1
8.1
8.0
7.9
7.8
7.7
7.6
7.5
7.4
7.3
7.3
7.2
7.1
7.0
6.9
6.9
6.8
26
8.1
8.0
7.9
7.8
7.7
7.6
7.6
7.5
7.4
7.3
7.2
7.1
7.1
7.0
6.9
6.8
6.7
6.7
27
7.9
7.9
7.8
7.7
7.6
7.5
7.4
7.3
7.3
7.2
7.1
7.0
6.9
6.9
6.8
6.7
6.6
6.6
28
7.8
7.7
7.6
7.5
7.5
7.4
7.3
7.2
7.1
7.1
7.0
6.9
6.8
6.7
6.7
6.6
6.5
6.5
29
7.7
7.6
7.5
7.4
7.3
7.3
7.2
7.1
7.0
6.9
6.9
6.8
6.7
6.6
6.6
6.5
6.4
6.3
30
7.5
7.4
7.4
7.3
7.2
7.1
7.1
7.0
6.9
6.8
6.7
6.7
6.6
6.5
6.5
6.4
6.3
6.2
This table uses the formula % saturation =
= EXP(-173.4292+249.6339*100/T+143.3483*LN(+T/100)-21.8492*T/100+S*(-0.0.014259*T/100-0.0017*(T/100)^2))*1.4276
where S is salinity in ppt and T is degrees Kelvin (=C+273.15)
Formula from Grasshoff, K., et al. (1999), and is generally accurate to 0.1 ppm to empirical studies.
Saturation values are for 760 mm mercury (29.92"). During a high pressure system, saturation values may be 0.4 ppm higher.
During a low pressure system, saturation may be 0.5 ppm lower.
