Development and Application Value Assessment of a Method for Measuring the Quality of Volume Calibration Syringes

BackgroundPulmonary examination is a measurement technique in medicine, and the quality of examination equipment is a key factor associated with the accuracy of examination results. Guidelines for mechanical lung function measurements have proposed that the spirometer should be calibrated each time it is used by the calibration cylinder for quality control, so the accuracy of the calibration cylinder will directly associate with that of the spirometer. However, there are no reports on the accuracy, and eligible standards, as well as calibration procedure regarding spirometer calibration cylinders measured by relevant research institutions (including calibration cylinder manufacturers) .ObjectiveTo develop a method, and use it to measure the performance of volume calibration cylinders commonly applied in China to assess its application value.MethodsAccording to the standards for 3 L calibration syringe proposed in the Standardization of Spirometry 2019 Update issued by the American Thoracic Society (ATS) /Euro