Verification & Testing

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Verification is essential part of all measurement systems and is present in all stages, from initial conceptual design to final testing and commissioning. It is essentail that before metering skids are installed, modified or upgraded they are be properly tested.

Series of test are performed to assure they are fit for purpose, and that they operated and maintained per design guidelines and best industry practises. The very same testing procedures that will be used need to be reviewed for suitability.


We can assist you with a review of design documentation, and participate in testing of metering systems performed by vendor. We also offer independent post-commissioning verification of upgraded or new metering systems. These services can be done under existing support contracts or as standalone consultancy services.

Review of design documentation will confirm that proposed solution is in agreement with measurement standards, industry practises and goverment legislation. Operation and maintenance requirements are checked. Determine that system uncertainy has been estimated, and is adequate for purpose.

Assess that maintenance procedures are fit for purpose, and are executed per defined schedules and according to approved maintenance philosophy. Check that suitable test equipment is used, and calibrated at defined intervals. Check used calculations and tolerances.

Review of metering uncertainty spreadsheets and verify generated results are correct and reflect the current condition of the installed equipment.

Review and assess that commissioning procedures and tests are adequate and detailed enough for metering system that will be commissioned. Make sure all relevant tests will be considered.

Independent review and witnessing of factory and site acceptance tests to make sure build system is functioning properly and per design recommendations. Verification that all flow computer parameters and meter settings are correct and as per manufacturer's recommendations.


Most common test equipment that used for calibration and verificaton purposes, is shown below. Test equipment must be calibrated and certified every 12 months, by an UKAS accredited laboratory, or equivalent depending on country. Certified test equipment is an essential part of nearly all preventive and corrective maintenance procedures, and is also used to troubleshoot equipment and determining the root causes of failures.