HEPA Filter Leak Test- Importance of Aerosol Photometer Calibration and ISO 17025 Compliance

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HEPA Filter Leak Test - Importance of Aerosol Photometer Calibration and ISO 17025 Compliance

High efficiency particulate air (HEPA) filter leak test is a crucial procedure to perform regularly to ensure air quality in clean environments such as cleanrooms. Typically, the test is performed using an aerosol photometer, which measures the concentration of challenge aerosols both upstream and downstream of the HEPA filter. The accuracy of photometer calibration directly influences the reliability of HEPA filter leak test results.

This webinar outlines the primary sources of measurement uncertainty in photometer calibration, supported by experimental data. Through the examination of measurement uncertainty, its impact on HEPA filter leak test is demonstrated. The identification and quantification of the sources of error are also discussed as essential components of the quality assurance programs for labs adhering to ESO/IEC 17025. Based on the experimental findings, this webinar introduces best practices to minimize measurement uncertainty in photometer calibration.


Webinar Objectives

• Understand why it is critical to accurately calibrate aerosol photometers
• Understand measurement uncertain in photometer calibration and its role in ISO 17025 compliance.
• Learn best practices in photometer calibration

Speaker

Meng Hu, Ph.D.

Applications Engineer

Air Techniques International