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Accurate Tank Testing,
Inc.
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201-848-8224
E-MAIL |
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- Underfilled Volumetric/Ultrasonic
Testing
This test occurs with product in the tank. Testing using the underfill
volumetric test pressurizes the tank with 2 psi. of compressed nitrogen.
Disadvantages
Pressure of any nature will result in
a small hole leaking in greater volume with the chance that the leak will not
be detected by the test.
- Volumetric Precision Testing
Tank is filled to 100% capacity and monitored for level changes that are
adjusted for temperature induced volume changes.
Disadvantages
Tank must be filled to capacity for
test. The pass/fail criteria is too broad for test results to be usable. (A
leak could be present yet still fall into the acceptable range)
Test susceptible to vapor pockets which distort data and may give false
results. Cannot distinguish a leak in the tank from a leak in the
piping.
- Tracer Tank Testing
A method where an inert gas is injected into the tank and samples of the
air surrounding the tank are taken to be analyzed for the presence of the inert
gas.
Disadvantages
Ten to fourteen day wait for test
results. Ineffective for high water tables. Cannot distinguish a leak in the
tank from a leak in the piping. Requires two visits to the property to conduct
test. Test protocol has been changed numerous times to increase the reliability
of the test results.
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