Guide to Selecting the Right PSL Sphere Sizes for Testing

Polystyrene Latex (PSL) spheres are the industry standard for calibrating airborne particle counters (LPCs), testing HEPA filters, and validating cleanroom environments. Selecting the correct sphere size ensures that your instrumentation provides accurate, repeatable data that aligns with international cleanliness standards. Using the wrong particle size can lead to faulty calibration curves, missed contamination risks, and […]
