TM 5-4220-201-12
WARNING
Do not submerge the mouth inflation valve
in water or allow water to enter the flotation
cell.
c. Keep the cells inflated for a minimum of 12 hours.
Record the room temperature and cell pressure at this time.
For each 1 degree rise in temperature, add 0.031 psi to the
final pressure reading.
For each 1 degree drop in
temperature, subtract 0.031 from the final pressure reading.
Cells having a corrected pressure of not less than 1.0 psi
are satisfactory for use. If cells show a marked decrease in
psi reinflate to 2 psi and check for leaks. If leaks cannot be
located, coat with a soap solution or submerge in a water
tank and observe clearly for bubbles.
d. Remove the cylinder and deflate the cells after they
have passed the inflation test. Check the cylinder valve for
proper operation and make sure gaskets (fig. 2-7) are
installed. Return the valve discharge lever (fig. 4-1) to the
closed position.
e. Check CO2 cylinder weight before reinstallation.
Scales calibrated in grams may be used for weight-checking
the cylinders. Remove from service and condemn cylinders
weighing less then the gross weight marked on the cylinder.
f. Upon completion of the periodic inspection and test,
mark the inspection date on each cell.
4-3
