Issue Date: July 27, 2004
Revision Date: April 6, 2010
(originally listed as EBW, Inc.)
AUTOMATIC TANK GAUGING METHOD
As of April 1, 2009, Franklin Fueling systems no longer
manufactures this method.
Applies only to AutoStik II and AutoStik Jr. models sold March 1, 2004 to
April 1, 2009.
rate of 0.2 gph with PD = 99.9% and PFA = 0.1%.
Leak rate of 0.1 gph with PD = 99.9% and PFA = 0.1%.
gph for leak rate of 0.2 gph.
0.05 gph for leak rate of 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.
diesel, aviation fuel, fuel oil #4.
of 15,000 gallons.
Tanks less than 95% full may be tested.
Minimum product level required based on tank diameter is as follows:
48" dia/min 12";
64" dia/min 14";
96" dia/min 17.5";
For other tank diameters, see evaluation report.
of 6 hours 1 minute between delivery and testing for leak rate of 0.2
Minimum of 5 hours 18 minutes between delivery and testing for leak rate
of 0.1 gph.
None between dispensing and testing.
There must be no delivery during waiting time
of the test is determined automatically based on quality of test
Average data collection time during evaluation was 5 hours 10 minutes for
leak rate of 0.2 gph.
Average data collection time during evaluation was 5 hours 44 minutes for
leak rate of 0.1 gph.
Test data are acquired and recorded by a microprocessor.
Leak rate is calculated from data determined to be valid by statistical
There must be no dispensing or delivery during the test.
contains 5 thermistors to monitor product temperature.
At least one thermistor must be submerged in product during testing.
be used to detect water ingress.
Minimum detectable water level in the tank is 0.208 inch.
Minimum detectable water level change is 0.011 inch.
and probe must be checked and, if necessary, calibrated in accordance with
evaluated using manifolded tank systems. Therefore, this certification is
only applicable when there is a probe used in each tank and the siphon is
broken during testing.
Tests only portion of tank containing product.
As product level is lowered, leak rate in a leaking tank decreases (due to
lower head pressure).
Consistent testing at low levels could allow a leak to remain
EPA leak detection regulations require testing of the portion of the tank
system which routinely contains product.
AutoStik Jr. can
support up to 4 tanks.
AutoStik II can support up to 8 tanks.
Franklin Fueling Systems
Ken Wilcox Associates
3760 Marsh Road
Madison, WI 53718
Tel: (800) 225-9787