FAQs

Can you calibrate a non-insulated tank while it is in service?

Yes, but information regarding the inside of the tank will be acquired from the previous tank chart and/or tank drawings. We strongly recommend that the tank be out of service so that we can perform a full calibration.

 

Can you calibrate an insulated tank while it is in service?

No, the tank must be taken out of service; access to the inside of the tank is required in order to calibrate.

 

Does the gauge hatch need to be installed prior to calibration?

Yes.

 

Does the gauge pole need to be slotted?

Yes.

 

While the tank is out of service, when is the best time to calibrate a tank?

The tank should be calibrated when it is as close to operational service as possible (i.e., after completion of all repairs). Also, the tank should have been filled with product at least once or hydrostatically tested before being calibrated.

 

Can you calibrate a tank before the coating is applied?

Yes, but all repairs and modifications need to be completed before we calibrate the tank.

 

Does the tank have to be hydrostatically tested before being calibrated?

No, but API recommends that the tank be hydrostatically tested or filled with product at least once before calibration.

 

What information do you need when I contact you to arrange a tank calibration?

 

  • Your contact information (including billing contact)

  • Site contact information

  • Location of the tank and tank number

  • Date/time tank is available

  • Diameter and height of the tank

  • Fixed roof or floating roof (internal or external)

  • Insulated or non-insulated shell

  • New or existing construction

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