HEPA Filter Leak Testing

• SUMMARY: Effect of the Particle Size Distribution of Challenge and Calibration Aerosols on HEPA Filter Leak Test by Aerosol Photometers
• Effect of the Properties of Poly-alpha Olefin (PAO) on Photometer Measurement in Filter Leak Testing, April 10, 2025
• Photometer Calibration: Calibration Error Due to Errors in Gravimetric Standard of Measurement, February 29, 2024
• Photometer Calibration: The Case for Two-Point Calibration and Multi-Point Verification, January 25, 2024
• Verifying the Linearity of Aerosol Photometers: Importance and Challenges, July 10, 2023