Issue Date: November 22, 1995
Revision Date: November 6, 1997
Soiltest, Inc.
Soiltest Ainlay Tank \'Tegrity\' Tester, S-3
Volumetric Tank Tightness Test Method (Overfill)
| Certification | Leak rate of 0.1 gph with PD = 99% and PFA = 1%. |
|---|---|
| Leak Threshold | 0.05 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. |
| Tank Capacity | Maximum of 15,000 gallons. Tank must be minimum 100% full. |
| Waiting Time | Minimum of 10 hours between delivery and testing. Minimum of 2 hours between "topping off" and testing. There must be no dispensing or delivery during waiting time. |
| Test Period | Minimum of 1 hour, 30 minutes. Test data are acquired and recorded manually and by a strip chart recorder. Leak rate is calculated from last 1 hour, 30 minutes of test period data. There must be no dispensing or delivery during test. |
| Temperature | Average for product is determined by a minimum of 3 thermistors. |
| Groundwater | Depth to groundwater in tank excavation backfill must be determined. If groundwater is above bottom of tank, product level must be adjusted to provide net pressure of 2-4 psi at the bottom of tank during test. |
| Calibration | Level sensors must be calibrated before each test in accordance with manufacturer's instructions. Thermistors must be checked annually and, if necessary, calibrated in accordance with manufacturer's instructions. |
| Comments | Not evaluated using manifolded tank systems. |
- Soiltest, Inc.
86 Albrecht Dr., P. O. Box 8004
Lake Bluff, IL 60044-8004
Tel: (800) 323-1242 - Evaluator: Law Engineering Industrial Services
Tel: (800) 672-6601
Date of Evaluation: 11/28/90
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