Containment Testing

Definition - What does Containment Testing mean?

Containment testing is a part of environmental compliance testing that is regulated by the authorities of many countries. This testing ensures that containments such as tanks, pits, sumps, concrete tanks, plastic containers and pipes used to store or dispense petroleum products, liquid chemicals or any other industrial fluids do not leak into the ground, which could possibly result in polluting the environment or the drinking water supply.

Corrosionpedia explains Containment Testing

Containment testing and inspection helps evaluate the structural integrity, permeability and compatibility of a containment system. Not only is such testing an important part of an environmental compliance plan, but it’s also a risk management practice. There are certain testing methodologies adopted by organizations that specialize in performing containment testing and inspections. Methodologies include:

  • Performing accelerated hydrostatic testing of containment sumps and dispenser pans using a VPLT precision test system in which third-party certification for the UST tightness test is given.
  • Testing pipe containments by pressurizing the annular space around the pressurized piping with nitrogen gas (typically between 3 and 10 PSI pressure).
  • Vacuum testing is performed by sealing the annular space and then drawing a vacuum on the annular space. This procedure tests the tank's annular space.
  • The 24-hour sump testing procedure in which a sump is filled with water and its level is marked. The water level is then measured 24 hours later.

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