Abstract:Aiming at the lack of atomization amount and the lack of calibration method of biosafety cabinet quality detector, the atomization amount calibration method was studied. Based on the atomization amount calibration device, the atomization amount calibration method is proposed, the technical indicators are determined, and the calibration case is verified and the relevant influencing factors are analyzed. According to the calibration method, the verification results of the atomization quantity indication error (mass density method and time flow method) of the biosafety cabinet quality tester meet the technical requirements. The successful establishment of the atomization calibration method of biosafety cabinet quality detector can provide a useful reference for the preparation of the "Calibration Specification for BioSafety Cabinet Quality Tester", and promote the traceability and standardization of the measurement value of biosafety cabinet quality tester.