| Calibrated Device |
(1) Piston prover : Sonic nozzle, Thermal mass flowmeter, Differential pressure flowmeter, Laminar flowmeter, Piston-based flowmeter, Variable area flowmeter, Turbine 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 ~ 40) L／min |
| Uncertainty |
(1) (0.08 ~ 0.11) % |