Hach DR/850, Procedures Manual, Page: 16 / 460

16
CHEMICAL ANALYSIS INFORMATION
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Dissolved Oxygen
Table 3 lists the mg/L dissolved oxygen in water at saturation for various
temperatures and atmospheric pressures. The table was formulated in a
laboratory using pure water. The values given are only approximations for
estimating the oxygen content of a particular body of surface water.
Table 3 Dissolved Oxygen Saturation In Water
Pressure in Millimeters and Inches Hg
mm
775 760 750 725 700 675 650 625
Temp inches
°F °C 30.51 29.92 29.53 28.45 27.56 26.57 25.59 24.61
32.0 0 14.9 14.6 14.4 13.9 13.5 12.9 12.5 12.0
33.8 1 14.5 14.2 14.1 13.6 13.1 12.6 12.2 11.7
35.6 2 14.1 13.9 13.7 13.2 12.9 12.3 11.8 11.4
37.4 3 13.8 13.5 13.3 12.9 12.4 12.0 11.5 11.1
39.2 4 13.4 13.2 13.0 12.5 12.1 11.7 11.2 10.8
41.0 5 13.1 12.8 12.6 12.2 11.8 11.4 10.9 10.5
42.8 6 12.7 12.5 12.3 11.9 11.5 11.1 10.7 10.3
44.6 7 12.4 12.2 12.0 11.6 11.2 10.8 10.4 10.0
46.4 8 12.1 11.9 11.7 11.3 10.9 10.5 10.1 9.8
48.2 9 11.8 11.6 11.5 11.1 10.7 10.3 9.9 9.5
50.0 10 11.6 11.3 11.2 10.8 10.4 10.1 9.7 9.3
51.8 11 11.3 11.1 10.9 10.6 10.2 9.8 9.5 9.1
53.6 12 11.1 10.8 10.7 10.3 10.0 9.6 9.2 8.9
55.4 13 10.8 10.6 10.5 10.1 9.8 9.4 9.1 8.7
57.2 14 10.6 10.4 10.2 9.9 9.5 9.2 8.9 8.5
59.0 15 10.4 10.2 10.0 9.7 9.3 9.0 8.7 8.3
60.8 16 10.1 9.9 9.8 9.5 9.1 8.8 8.5 8.1
62.6 17 9.9 9.7 9.6 9.3 9.0 8.6 8.3 8.0
64.4 18 9.7 9.5 9.4 9.1 8.8 8.4 8.1 7.8
66.2 19 9.5 9.3 9.2 8.9 8.6 8.3 8.0 7.6
68.0 20 9.3 9.2 9.1 8.7 8.4 8.1 7.8 7.5
69.8 21 9.2 9.0 8.9 8.6 8.3 8.0 7.7 7.4
71.6 22 9.0 8.8 8.7 8.4 8.1 7.8 7.5 7.2
73.4 23 8.8 8.7 8.5 8.2 8.0 7.7 7.4 7.1