And l, Density ( ρ) in g/cm, P must be in psi units and l must be in meters – In-Situ Win-Situ 4 / Pocket-Situ 4 Operators Manual User Manual
Page 95
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rev. 003 11/04
3. Take an electronic pressure reading, manually, from the transducer
and record this measurement in PSI. This is measurement P
1
.
4. Read the tape measure relative to some fixed reference point (e.g., top
of well casing) or mark the position on the cable with a felt tip pen.
This is measurement L
1
.
5. Lower the transducer at least three meters deeper into the water and
repeat steps 3 and 4. These are measurements P
2
and L
2
.
6. Density (
ρ) in g/cm
3
is calculated using the following:
where g is the gravitational acceleration for the location of the well in m/s
2
.
P must be in PSI units and L must be in meters.
g x (L
2
- L
1
)
(P
2
– P
1
) x 6.894757
ρ =
APPENDIX A: LIQUID DENSITY
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