|
Certification |
Leak
rate of 0.2 gph with PD = 99.9% and PFA = 0.1% for single tank systems.
Leak rate of 0.2 gph with PD = 99.9% and PFA = 0.1% for manifolded tank
systems. |
|
Leak Threshold |
0.1
gph.
A tank system should not be declared tight if the test result indicates a
loss or gain that equals or exceeds this threshold. |
|
Applicability |
Gasoline, diesel, aviation fuel, fuel oil #4.
|
|
Tank Capacity |
Maximum
of 11,869 gallons for single tank systems.
Maximum of 23,778 gallons for manifolded tank systems.
Minimum product level required is 14% of the tank diameter. |
|
Throughput |
Monthly
Maximum of 126,923 gallons. Applies to single and manifolded tank systems.
|
|
Waiting Time |
Minimum
of 2 hours stabilization time is allowed between delivery and data
collection. |
|
Test Period |
Average
is 5.95 days.
Data sampling frequency depends on tank activity. |
|
Temperature |
Average
for product is determined by a temperature-averaging probe.
Temperature is measured by a resistance temperature detector (RTD).
The RTD is mounted in a metal pipe that runs the length* of the probe
allowing for temperature averaging.
(*starts about 1 inch above the tip of the probe) |
|
Water Sensor |
Must be
used to detect water ingress.
Minimum detectable water level in the tank is 1.298 inch.
Minimum detectable change in water level is 0.046 inch. |
|
Calibration |
The
probe features 10 measurement segments (10 capacitance segments) and uses a
comparison method (self calibration process) which allows the sensor to run
without any external calibration. |
|
Comments |
System
consists of a capacitance probe, a micro processing unit inside the head of
the probe, and a separate control panel to record and display test data.
Probe was not
tested with oxygenated fuels. However, manufacturer states that probe will
work with these types of blended products.
Tests only
portion of tank containing product. |
