Gas flow
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 :
Accreditations:
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 ), Vedène (84)
Scope is available on www.cofrac.fr
Calibration methods
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.