UST Programs - LG 113

Issue Date: April 18, 1997
Revision Date: July 12, 2017

Simmons Corp.

SIR 5.7 LM

STATISTICAL INVENTORY RECONCILIATION TEST METHOD (QUANTITATIVE)

Certification	Leak rate of 0.2 gph with PD > 99.9% and PFA = 0.0%. Leak rate of 0.1 gph with PD > 99.0% and PFA < 1.0%.
Leak Threshold	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."
Applicability	Gasoline, diesel new crank oil, used crank oil, aviation fuel, kerosene, waste oil. Other more viscous liquids may be tested after consultation with the vendor.
Tank Capacity	Maximum of 60,000 gallons for single tank. Maximum of 60,000 gallons cumulative capacity for manifolded tank systems with no more than 5 tanks in system.
Data Requirement	Minimum of 27 days of product level and flow through data.
Comments	61% of data sets evaluated were from manifolded tank systems. 17% of data sets evaluated used data collected by Automatic tank gauges. Of 41 data sets submitted for evaluation, all were analyzed with conclusive results. Median monthly throughput of tanks evaluated was 55,791 gallons. Leak rates of 0.05, 0.1 and 0.2 gph were used in evaluation. Data sets evaluated were supplied by evaluator.

Simmons Corp.	Evaluator: S.S.G. Associates
106 E. Main Street	Tel: (662) 234-1179
Richardson, TX 75081-3327	Dates of Evaluation: 10/28/95, 02/15/00 , 09/03/01
Tel: (800) 848-8378
E-mail: howard.dockery@simmons-corp.com
URL: www.simmons-corp.com

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