Research on calibration methods for hot air circulation tunnel sterilization ovens

Hot air circulation tunnel ovens play a crucial role in evaluating the sterilization effectiveness of glassware, with their test results directly impacting pharmaceutical safety in the pharmaceutical industry. However, there are currently no effective methods for the overall calibration of such equipment in China. This paper conducts an in-depth analysis of the core metrological performance indicators of tunnel oven results and proposes a novel calibration method for hot air circulation tunnel ovens. Through experimental verification and uncertainty assessment, it is demonstrated that this method can accurately evaluate the metrological performance of tunnel ovens, ensuring the accuracy and reliability of test results. This method holds significant reference value for improving the traceability system of hot air circulation tunnel ovens and advancing technological progress in the pharmaceutical industry.