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.
106 E. Main Street
Richardson, TX 75081-3327
Tel: (800) 848-8378 - Evaluator: S.S.G. Associates
Tel: (662) 234-1179
Date of Evaluation: 10/28/95, 02/15/00 , 09/03/01
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