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Calibration and verification methods and frequencies for various volume and flow sensors
| Volume (L) and flow (L/s) | ||
| Method/sensor | Verification/calibration | Frequency |
| Pneumotachograph | Manual Validated 3 L syringe (±3%) using low, mid and high flows34 Automatic (equipment) Low and high flows (±3%) |
Before each test |
| Pitot tube | ||
| Turbine | ||
| Hot-wire anemometers | ||
