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0 California Edition:August,1996 <br /> Entropy Limited <br /> Precision Tank Inventory Control System Rev. 90 <br /> STATISTICAL INVENTORY RECONCILIATION TEST METHOD <br /> Certification: Leak rate of 0.1 gph with Po=99.5% and PFA=<0.5%. <br /> Leak Threshold: If the absolute value of the calculated leak rate (gain or loss) is less than the leak <br /> threshold and the minimum detectable leak rate is less than or equal to 0.2 gph, <br /> the test result is "pass". If the absolute value of the calculated leak rate is <br /> greater than or equal to the leak threshold, the result is "fail". If the minimum <br /> detectable leak rate exceeds 0.2 gph and the absolute value of the calculated <br /> leak rate is less than the leak threshold, the test result is "inconclusive". <br /> Applicability: Gasoline, diesel, aviation fuel, fuel oil#4. California reegWations limit use of <br /> SIR test methods to motor vehicle fuels only. <br /> Tank Capacity: Maximum single tank capacity is 21,000 gallons. Maximum total capacity for tanks <br /> in a manifolded system shall not exceed 21,000 gallons. <br /> Data Requirement: Minimum of 30 days of product level and flow through data must be provided to SIR <br /> vendor. <br /> Comments: 32% of the data sets used in this evaluation were from manifolded tanks. 89% of the <br /> manifolded tanks had manually stuck data. <br /> A maximum of three tanks were included in the manifolded systems used in this <br /> evaluation. The largest single tank capacity was 20,000 gallons. <br /> Of the 56 data sets presented for evaluation, 6 were not analyzed due to unusable <br /> data. <br /> There were no inconclusives. <br /> The median monthly throughput of tanks used in this evaluation was 52,207 gallons. <br /> Leak rates ranging from 0.0497 to 0.2003 were used in the evaluation. <br /> Data sets used in this evaluation were supplied by the evaluator. <br /> Entropy Limited Evaluator: Simpson, Gumpertz& Heger,,lnc. <br /> South Great Rd. <br /> Lincoln, MA 01773 <br /> Tel: (617) 256-8901 Date of Evaluation: 11/30/93 <br /> 42 <br /> Appearance on this list is notto be construed.as.an endorsement by any regulatory.agency nor is it any guarantee of the performance of the <br /> method or equipment. <br />