| Calibrated Device |
(1) Piston prover : Sonic nozzle, Thermal mass flowmeter, Differential pressure flowmeter, Laminar flowmeter, Piston-based flowmeter, Variable area flowmeter (2) Master meter method : Thermal mass flowmeter, Differential pressure flowmeter, Sonic nozzle, Laminar flowmeter, Soap bubble flowmeter, Variable area flowmeter, Piston-based flowmeter, Positive displacement flowmeter |
|---|---|
| Range |
(1) (0.002 to 40) L／min
(2) (0.002 to 40) L／min |
| Uncertainty |
(1) 0.11 %
(2) 0.12 % (mass flow rate), 0.13 % (volume flow rate) |