Pillar
A tightness test evaluates a tank or line within a defined scope and under specified conditions. It is not a visual inspection and does not replace the authority's decision. Here we explain how MESA 2D works, what limits the method, and how to interpret the next step.
Tightness describes the condition of a tank or line with respect to product entering or leaving it. A test evaluates the identified scope under the conditions of a method; the report should state what was tested, which equipment was used and the result. A visual inspection may find visible damage, but it does not replace that evaluation.
MESA 2D is a nonvolumetric method. It applies a vacuum to the tank ullage and analyzes acoustic signals that may indicate air ingress; a separate sensor checks for water ingress. The method's independent technical listing states the capacity, product level, groundwater and fuel conditions for which it was evaluated.
The independent evaluation consulted certifies the method's performance at a leak rate of 0.1 gallon per hour, with a 100% probability of detection and a 1.6% probability of false alarm, under the listing conditions. That specification is not a volumetric reading produced by every test or a universal regulatory threshold. The result is interpreted using the method's criteria and limitations.
Panamá Digital identifies the Fire Department, through DINASEPI, as the entity that inspects and certifies the operation of fuel-storage facilities. Published requirements include the previous certification and tank calibration charts. An official BCBRP document calls the procedure an “annual inspection” and states that the certificate is valid for one year, but it was revised in 2014; the current scope should be confirmed with DINASEPI.
A result that does not meet the method criteria requires review of the report and activation of the facility's response procedure. The test does not always locate the ingress or release point by itself. Diagnosis, repair and any repeat test are defined according to the scope found and the directions of the competent authorities.
We review whether the method applies to the tank and product, prepare the scope, run the test and deliver the technical report. If the result requires further investigation, diagnosis, repair and a new test are quoted separately; we do not promise a result before the system condition is known.
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