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Calibration and verification methods and frequencies for various O2 and CO2 gas analysers
| O2 and CO2 gas analysers | ||
| Method/sensor | Verification/calibration | Frequency |
| Mass spectrometers/infrared | 2-point calibration Known FiO2 and FiCO2 (±1%)8 9 Mass flow sensor/simulator 21% O2 in N2 (balance) at (x) flow (±1%) |
Before each test |
| Electrochemical | Not common in clinical setting | |
