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The LNE Laboratory has for many years been developing a series of references in gas flow meters, covering a range of 1.5 ml/min to 100 l/min for pressures below 5 bar. Both the calibration chain and methods deployed facilitate synchronization with the International System of Units (SI) for nearly all instruments tested.
Proposed calibration services
- Calibration of laminar flow meters, spanning the range from 1.5 ml/min to 100 l/min, by means of gravimetric measurements;
- Calibration of thermal mass flow meters, featuring: the Coriolis effect, a float, a soap bubble, a graphite piston, a membrane counter, rotary pistons, and a sonic orifice, spanning the range from 1.5 to 100 l/min;
- On-site calibration of volumeters, spanning the range from 1.5 to 33,000 ml/min;
- Calibration of dynamic dilution systems, spanning the range from 1.5 to 1,000 ml/min.
Accreditation details
Services backed by COFRAC accreditation No. 2-53
List of sites and scopes available on www.cofrac.fr
Additional services
The calibration services are conducted primarily using nitrogen or dry air.
Other gases are available upon request.
