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Fiberglass Tank Inspection Services
FRP (Fiberglass Reinforced Plastic) Tank inspections are conducted in accordance with the Fiberglass Tank & Pipe Institute’s Recommended Practice FTPI-1. InterSpec’s certified inspectors are qualified to perform FRP inspections. A Certified Tank and Vessel External Inspection is required every 5 years for tanks and vessels in Hazardous Substance service and every 10 years for tanks and vessels with a greater than 10,000 gallons capacity and in other service. A Certified Tank and Vessel Integrity Inspection is required every 20 years for tanks and vessels in Hazardous Substance service as well as those having a greater than 10,000 gallons capacity and in other service.
A Certified Tank and Vessel External Inspection and a Certified Tank and Vessel Integrity Inspection is required whenever there is evidence of material stress, leaks occur, prior to change in service, and upon tank and vessel relocation.
During a Certified Tank and Vessel Integrity Inspection, one or more of the following tests are performed:
- Internal Inspection
- Pressure Test
- Ultrasonic Thickness Test
- Interstitial Vacuum Test if double-wall or equipped with a double-bottom
The entire surface is examined for:
- Crazing (Small Hairline Cracks)
- Delamination
- Over Torque on Flange Bolts
- Tank Supports
- Hold-Down Lugs
- Vents
- Barcol Hardness (for determining the cure and hardness of resins.)