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【F08】Low Pressure Gas Flow Calibration System - Bell Provers

Calibrated Device 

Sonic nozzle, Thermal mass flowmeter, Differential pressure flowmeter, Laminar flowmeter, Piston-based flowmeter, Variable area flowmeter, Turbine flowmeter, Positive displacement flowmeter

Range
(1) Bell prover [primary standard]: (10 to 1000) L/min
(2) Master meter method: (10 to 1000) L/min
Uncertainty 
(1) 0.11 %
(2) 0.12 % (mass flow rate)、0.13 % (volume flow rate)