A Portable VolumejFlow Calibrating Syringe*
نویسنده
چکیده
Two samples of a manual 3 L calibrating syringe which displays an electronically calculated FEF25-75% were evaluated to determine its suitability as a flow calibrator were evaluated. Room air was discharged into a manual spirometer system known to be accurate. The calibrator-determined values correlated very closely with the spirometer values over an FEF25-75 % range of 0.4 to 9 L/sec. The differences between calibrator and spirometer FEF2S-75% values were small (mean ± 1 percent, greatest 3.7 percent) and of little importance
منابع مشابه
Performance Evaluation of Contemporary
A comprehensive evaluation of 62 spirometers from 37 different sources was performed using a two-part protocol: calibrated syringe, and dynamic waveform testing. All testingwas done with ambient air. Calibrated syringe testing examined the ability of the spirometers to accurately measure the output of a 3 L calibrating syringe under varying conditions. The accuracy, FVC volume linearity, and st...
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