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UST Program - LG 113 - Non-Volumetric Tank Tightness Test Methods (Vacuum)
Revision Date: May 23, 2007
Non-Volumetric Tank Tightness Test Methods (Vacuum)
Click on the vendors specific Equipment Name to go to that Listing.
| VENDOR | EQUIPMENT NAME | LEAK RATE / THRESHOLD / MAX TANK CAPACITY |
| Estabrook EZY CHEK Systems (originally listed as Horner EZY CHEK) | 0.1 gph/ A tank system should not be declared tight when the vacuum decay is more than 1 inch water column pressure for non-volatile products and 10% of the lower determined vapor pressure for volatile products, or when water ingress is detected by the water sensor./50,000 gallons | |
| EZY 3 Locator Plus | 0.1 gph/ A tank system should not be declared tight when the acoustic signal detected is different from the baseline signal before a vacuum is placed on the tank, or when water ingress is detected by the water sensor./30,000 gallons | |
| Protank, Inc. | Fast Test (Underfill Test) | 0.1 gph/ A tank system should not be declared tight when the acoustic signal detected is different from the baseline. Baseline is the acoustic signal before tank is evacuated./30,000 gallons |
| Tanknology – NDE | Quick Test (Underfill Test) | 0.1 gph/A tank system should not be declared tight when the acoustic signal detected is different than the baseline. Baseline is the acoustic signal before the tank is evacuated./30,000 gallons |
| VacuTect | 0.1
gph/ A tank system should not be declared tight
when: sonic emission of air ingress is detected in ullage area and/or; sonic emission of bubbles formed by air ingress is detected in product-filled portion of the tank and/or; water ingress is detected at the bottom of the tank./75,000 gallons |
|
| Triangle Environmental, Inc. | TEI System 5000, Version 1.0, Version 1.0W | 0.1 gph/ A tank system should not be declared tight when the acoustic noise level of the tank under vacuum is greater than the calibrated background acoustic noise level (prior to evacuation)./20,000 gallons |