Issue
Date: November 14, 1995
Revision Date: April 11, 2011
National Environmental, LLC
(formerly Advanced Telemetrics, Ltd.)
Tanknetics
SIR, Version 2.1
STATISTICAL
INVENTORY RECONCILIATION TEST METHOD (QUANTITATIVE)
Certification
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Leak 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 = 0.5%.
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Leak
Threshold
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If
the absolute value of the calculated leak rate (gain
or loss) is less than the leak threshold and the minimum
detectable leak rate is less than or equal to 0.2 gph
(0.1 gph for the 0.1 gph test), the test result is "pass."
If the absolute value of the calculated leak rate is
greater than or equal to the leak threshold, the result
is "fail." If the minimum detectable leak
rate exceeds 0.2 gph (0.1 gph for the 0.1 gph test)
and the absolute value of the calculated leak rate is
less than the leak threshold, the test result is "inconclusive."
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Applicability
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Gasoline,
diesel.
Other more viscous liquids may be tested after consultation
with the vendor.
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Tank
Capacity
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Maximum
of 45,000 gallons for single tanks.
Maximum of 45,000 gallons cumulative capacity for manifolded
tank systems with no more than 4 tanks in system.
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Data
Requirement
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Minimum
of 28 days of product level and flow through data.
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Comments
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51%
of data sets evaluated were from manifolded tank systems.
Of 41 data sets submitted for evaluation, all were analyzed
with conclusive results.
Median monthly throughput of tanks evaluated was 18,897
gallons.
Leak rates ranging from 0.043 to 0.234 gph were used
in evaluation. Data sets evaluated were supplied by
evaluator.
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National Environmental, LLC |
Evaluator: Ken Wilcox Associates
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560 CR 275
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Tel: (816) 443-2494 |
Water Valley, MS 38965
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Date of Evaluation:01/28/97
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Tel: (800) 520-4802
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E-Mail: james@tanknetics.com |
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Website: www.tanknetics.com |
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