In-Situ Win-Situ 2000 Operators Manual - Manual (Page 42)

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LIQUID DENSITY
The conversion from PSI units to meters of H
2
O, or feet of H
2
O,
requires several conversion factors. One of these is the density (
ρ
) of
the aqueous solution being monitored. Pure groundwater at 20°C has a
density of 0.998 grams per cubic centimeter (g/cm
3 ).
Use the values in the table below for density if you do not otherwise
know it. However, since these data assume pure water, there is no ac-
commodation for other variables (such as salinity) which can affect your
actual water conditions. (Alternatively, you could compute it; see the
following procedure.)
APPENDIX
Temp. Density Temp. Density Temp. Density
(°C) (g/cm 3 ) (°C) (g/cm 3 ) (°C) (g/cm 3 )
1 0.999900 11 0.999605 21 0.997992
2 0.999941 12 0.999498 22 0.997770
3 0.999965 13 0.999377 23 0.997538
4 0.999973 14 0.999244 24 0.997296
5 0.999965 15 0.999099 25 0.997044
6 0.999941 16 0.998943 26 0.996783
7 0.999902 17 0.998774 27 0.996512
8 0.999849 18 0.998595 28 0.996232
9 0.999781 19 0.998405 29 0.995944
10 0.999700 20 0.998203 30 0.995646