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  METHOD INDEX

Continuous Pressurized Piping
Bulk UST
AST Leak Detection
Electronic LLD
Mechanical LLD
Large Pipeline
Static ATG
Continual RS
Qualitative SIR
Quantitative SIR
Interstice-Liquid Filled
Line Interstice-P/V
Tank Interstice-P/V
Interstitial Sensor
Liquid Sensor
Vapor Sensor
NVTTT-Tracer
NVTTT-Ullage
NVTTT-Vacuum
VTTT-Overfill
VTTT-Underfill
Interstitial TTT
Small Pipeline TT
Sec & Spill Cont

Revision Date: January 12, 2015
 

Non-Volumetric Tank Tightness Test Method
(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)

EZY 3

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

Mesa Engineering Mesa 2-D Method with ACT v1 Water Level Sensor 0.1 gph/A tank system should not be declared tight when an acoustic signal is detected above the background or baseline noise by a computer data acquisition system, 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

Purpora Engineering, Inc.

 

Alert 8200 Series Sonde 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./30,000 gallons

Tanknology

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 Manufacturing, Inc. (originally Listed as 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

 

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