Methods

“OUR METHODS ARE PROVEN AND OUR EXPERTS HELP YOU BENEFIT FROM THEIR YEARS OF EXPERIENCE, 7 DAYS A WEEK.”

 

Calibration is done with petroleum, fuel or naphtha available in the laboratory, provided by the client or taken from the SPSE’s storage park, which allows access to the entire range of viscosities habitually encountered in the field of liquid hydrocarbon measurement.

 

Several methods are proposed according to the flow rates and your own needs:

 

  • Comparison with reference tube (flow between 60 and 3000 m3/h):

The comparison is carried out directly between the tool to be calibrated and the reference tube, with the flow meter installed in series with the reference tube.

This method’s uncertainty is directly correlated with the uncertainty of the reference volume – or tube. The uncertainty is currently equal to 0.059%.

 

  • Comparison with one or two master meters (between 200 and 4000 m3/h):

Our accreditation further allows us to provide calibration within this flow range and up to 4000 m3/h through comparison with master meters, which are themselves first calibrated by using the reference tube.

This ensures the master meters are calibrated in the test’s true conditions (solution viscosity, temperature). This method’s uncertainty is equal to 0.1%.

 

Metrology

All equipment necessary for the acquisition of data for processing is connected to the national metrology system, through reference calibrations with a COFRAC calibration certificate.