Accredited calibration of flowmeters – minimal uncertainty and highest precision

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 process water, thermal energy, and cooling
Efficient calibration and flow-technical studies of meters for process water, thermal energy and cooling:
- Standard and customised calibration services and consultancy
- Random sampling inspection
- Assistance in interpreting legislation
- Control of valves and other components in piping systems
- Type testing of all types of flowmeters - as a supplier to FORCE Certification.
Water meters – technical specifications for calibration
- 1 l/h to 6,000 l/h: from 5 – 90 °C
- 1 l/h to 150,000 l/h: from 5 – 70 °C
- 1 l/h to 1,200,000 l/h: from 20°C
- On-site: 150 l/h to 120,000 l/h.

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.

Ask us about calibration

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 – 65.000 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.