The gas flow domain is part of the ground history of Aérométrologie, as it is one of the three accreditations in 1994.
Nowaday, we propose calibrations on our two sites.
The proposed calibration range is from 5 cm3.h-1 to 15000 m3.h-1, including various instrument types :
Aérométrologie offers the possibility to calibrate devices including others functions than air flow, as for example temperature, atmospheric or differential pressures and hygrometry.
These multiple calibrations are possible within 10 working days by fixing a date before sending the equipment, 5 working days for a simple flow meter.
Gas flow rate measurement
N°2-1294(5 cm³.h-1 to 15000 m³.h-1 ), Les Ulis (91)
N°2-1931 (10 cm3.min-1 to 8,5 m³.h-1 ), Pernes-Les-Fontaines (84)
Scope is available on www.cofrac.fr
Two methods of calibration are proposed according to the type of device and the pressure :
The primary method is a “P.V.T.t” (pressure-volume-temperature-time) method, the method by comparison is made with one or several sonic collars or long radius collars or with laminar flow meters, or with a volumometer.