Flexible and accredited calibration of flowmeters for, e.g., water, thermal energy, cooling, gases, air and liquids other than water. On-site at your location or in our laboratories.

Minimal uncertainty for your flowmeters

Accredited and efficient calibration of your flowmeters ensures the highest possible measurement accuracy.

We work at the primary level, with traceability to the relevant primary standards.

You can have your meters calibrated in our laboratories or on-site at your location. Calibration of flowmeters, consulting and related services can, in most cases, be tailored to your needs.

Calibration of your specific flowmeter

Flowmeters for liquids other than water

Calibration, verification and advice on flow measurement with meters and measurement systems for liquids other than water, including oil, petrol and diesel.

We calibrate meters for many different purposes, such as:

  • Crude oil meters in offshore or onshore facilities
  • Lubricating oil meters
  • Petrol and diesel meters at fuel stations
  • Meters on oil tankers, milk tankers and tankers
  • Ramp meters at depots and refineries
  • Cryogenic meters.

Additionally, we assist with uncertainty calculations and budgets, as well as technical audits of measurement systems to ensure compliance with requirements.

Technical specifications for calibration

  • Test benches in the laboratory (Diesel or Isochem): 1 - 7,500 l/min or 1 - 6,500 kg/min.
  • On-site: 1 - 5,000 l/min or 1 - 4,300 kg/min.
  • At temperatures around 20 °C or ambient temperatures.
Flow calibration man

Ask us about calibration

Contact us to order calibration of your flowmeter – or to learn more about our services and facilities.

Flowmeters for air and gas

Calibration of meters with air on the world’s largest air facility, which has a capacity of 20 m3/h (Q-min) to 25,000 m3/h (Q-max).The air calibration facility can handle all flowmeters for measuring air and gas, including:

  • USM (ultrasonic meters)
  • Turbine meters
  • Swirl meters
  • Coriolis meters
  • Flare gas meters.

Diameters up to 50" and flow rates between 1 m3/h and 25,000 m3/h are possible.

Calibration with air under atmospheric conditions is often used as an initial test of meters as it indicates the meter's stability before use.

The accuracy of the air meter is also crucial in process facilities where air is distributed as part of a production process. These meters must be calibrated with air under varying pressures and flow rates.

Read about Bulderbaan – our unique air calibration facility for flowmeters measuring air and gases.

Air meters – technical specifications for calibration 

  • 1 ml/min – 25,000 m3/h
  • Pressure: 0 – 8 bar (flow up to 1000 m3/h) 

Gas meters – technical specifications for calibration 

  • 5m3/h – 32.000 m3/h
  • Pressure: 3 – 65 bar

Specialists ensure calibration of the highest standard

Your calibration tasks are handled by specialists who maintain their knowledge of calibration and flowmeters through research projects and standardisation work.

As a National Metrology Institute and technical advisor to the industry and authorities, we ensure accredited calibration of the highest standard.

If circumstances make it impossible to calibrate your meter under accreditation, we can, in most cases, perform a non-accredited calibration.