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Franklin Fueling Systems C
Annexe C – Certifications par des organismes tiers
Issue Date: November 22, 1995
Revision Date: February 28, 2006
TS-750, TS-1000, TS-1001, TS-2001, TS-5, TS-608, TS-550, TS-5000
Certification
Leak rate of 0.2 gph with PD = 95.7% and PFA = 4.3%.
Leak rate of 0.1 gph with PD = 99.9% and PFA = 0.1%.
Leak
0.1 gph for leak rate of 0.2 gph.
Threshold
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.
Applicability
Gasoline, diesel, aviation fuel, fuel oil #4.
Other liquids with known coefficients of expansion and density may be tested after
consultation with the manufacturer.
Tank
Maximum of 30,000 gallons for leak rate of 0.2 gph.
Capacity
Maximum of 15,000 gallons for leak rate of 0.1 gph.
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";
72" dia/min 15";
96" dia/min 17.5";
126" dia/min 21.5".
For other tank diameters, see evaluation report.
Waiting
Minimum of 4 hours 9 minutes between delivery and testing for leak rate of 0.2 gph.
Time
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
Test Period
Length of the test is determined automatically based on quality of test data.
Average data collection time during evaluation was 6 hours, 51 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 is acquired and recorded by system's computer.
Leak rate is calculated from data determined to be valid by statistical analysis.
There must be no dispensing or delivery during the test.
Temperature
Probe contains 5 thermistors to monitor product temperature.
At least one thermistor must be submerged in product during testing.
Water
Must be used to detect water ingress.
Sensor
Minimum detectable water level in the tank is 0.208 inch.
Minimum detectable water level change is 0.011 inch.
Calibration
Thermistors and probe must be checked and, if necessary, calibrated in accordance with
manufacturer's instructions.
36
Franklin Fueling Systems
(INCON Magnetostrictive Probe)
AUTOMATIC TANK GAUGING METHOD
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