Ultrasonic Testing
To determine shell thickness, Enviroshield employs the latest in Ultrasonic testing/scanning
technology to obtain thickness measurements.

We are able to gauge true metal thickness measurements even when a surface is coated or painted.

The measurement of tank wall thickness to ascertain the impact of corrosion is extremely
important, since very often corrosion cannot be detected via visual inspection. Corrosion will
weaken steel and could lead to system failures.

 
Visual Interior & Exterior Tank Inspection
Specialized training and consideration are prerequisites to work
in confined areas. Enviroshield technicians possess the equipment
and experience to safely work in environments with limited air
supply and areas with explosive potential.

Since the majority of ASTs are mounted, OSHA training again
comes into play since technicians must use appropriate, safe procedures to accomplish the exterior inspection without incident.

Corrosion Control / Cathodic Protection
As with underground storage tanks, safety and environmental regulations require corrosion control for aboveground fuel storage tanks and associated piping that come into contact with the ground.
As part of a certified inspection, past cathodic protection test results are reviewed for compliance to guidelines.

(Back to AST Overview, AST Inspection Requirements or for more info; AST Inpection Background.)