Understanding ISO 21501-4: Particle Counter Calibration

On Demand Webinar 

ISO 21501-4 has two main goals; to improve instrument-to-instrument data correlation and count accuracy, and to enhance compliance with ISO 14644.

By the end of this webinar, you should have a good understanding of the following concepts and how they affect your cleanroom particle counting efforts:

• How to be compliant with the most recent calibration requirements
• Sampling flow rate
• Counting efficiency
• Particle counter resolution
• Pulse height analyser (PHA)
• False count rate
• Particle size setting
• Coincidence loss at maximum particle concentration
• Maximum particle number concentration