LG 113 RESOURCES
- LG 113 Home Page
- Distribution Letter
- Disclaimer
- Equipment Type:
- Test Method Index
- LG 113 News
- Previous LG 113 - 16
- Leak Detection Equipment Review List
- Acceptable Test Protocols
- Glossary of Terms
- Monitoring System Certification
- Work Group
- Policy Memoranda:
- Maintenance Checklists:
UST Program - LG 113 - Non-Volumetric Tank Tightness Test Methods (Ullage)
Revision Date: April 4, 2007
Non-Volumetric Tank Tightness Test Methods (Ullage)
Click on the vendors specific Equipment Name to go to that Listing.
| VENDOR | EQUIPMENT NAME | LEAK RATE/THRESHOLD / MAX ULLAGE CAPACITY |
| Alert Technologies, Inc | Alert Ullage System Model 1050 (Pressure and Vacuum Test) | 0.1 gph/ A tank system should not be declared tight if the ratio of the ultrasonic signal (when the tank is under pressure or vacuum) to the background signal (prior to pressurization or evacuation) equals or exceeds 1.5 for either 12 kHz or 25 kHz frequency band./6,000 gallons |
| Alert Ullage System Model 1050 X (Vacuum Test) | 0.1 gph/ A tank system should not be declared tight if the ratio of the ultrasonic signal (when the tank is under vacuum) to the background signal (prior to evacuation) equals or exceeds 1.5 for either 12 kHz or 25 kHz frequency band./24,000 gallons | |
| MassTech International, Ltd. | MassTech Analog Acoustic Vacuum Method (Vacuum Test) | 0.1 gph/ Tank ullage should not be declared tight when the acoustic signal characteristic of a leak is detected./20,000 gallons |
| MassTech 002 Ullage Test System(Pressure or Vacuum Test) | 0.1 gph/Tank ullage should not be declared tight when a predetermined threshold is exceeded. This threshold may be modified by the results of the static test./30,000 gallons | |
| MassTech Analog Remote Spectral Analysis Method (Vacuum Test) | 0.1 gph/ Tank ullage should not be declared tight when the digital recording of the noise spectrum of tank under vacuum has a detectable difference from the digital recording of the noise spectrum of tank at zero pressure./20,000 gallons | |
| ProTank, Inc. | UTA-5000 Ullage Tester (Vacuum or Pressure 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 pressurized or evacuated./16,500 gallons |
| UTF-5000 Ullage Tester (Pressure Test) | 0.1 gph/ A tank system should not be declared tight when the make-up gas flow rate into ullage equals or exceeds 0.275 cubic feet/hour./7,500 gallons | |
| UTFP-5000 Ullage Tester (Pressure Test) | 0.1 gph/ A tank system should not be declared tight when the pressure decay trend equals or exceeds ± 0.016 psi/hr./10,260 gallons | |
| Tanknology - NDE | UST
Ullage Test, Version U2
|
0.1 gph/ A tank system should not be declared tight when the pressure decay trend equals or exceeds ± 0.016 psi/hr./10,260 gallons |
| UTS-4T Ullage Test (Pressure Test) | 0.1 gph/ A tank system should not be declared tight when the make-up gas flow rate into ullage equals or exceeds 0.275 cubic feet/hour./7,500 gallons | |
| U3 Ullage Test (Vacuum or Pressure 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 pressurized or evacuated./16,500 gallons |
|
| Triangle Environmental, Inc | TEI Ullage Test, Version 1.0 (Vacuum Test) | 0.1 gph/ A tank system should not be declared tight when an increase in the acoustic noise level (above background) of the tank under vacuum is detected due to air or water ingress./15,000 gallons |
| USTest, Inc. (previously listed as Sound Products Manufacturing, Inc.) | UST 2000/U (Pressure and Vacuum Test) | 0.1 gph/ A tank system should not be declared tight when there is a substantial increase in the acoustic noise signal (when the tank is under pressure or vacuum) above the background signal (prior to pressurization or evacuation) in the frequency interval of 10 kHz to 20 kHz./7,550 gallons (pressure test), 5,250 gallons (vacuum test). |