ISO 14644-3 is a part of the ISO 14644 series, which provides guidelines for cleanroom testing and monitoring. Specifically, this standard focuses on the "Assessment of airborne particle counts for cleanrooms and clean zones." Published in 2019, ISO 14644-3:2019 is the latest iteration, offering updated methodologies and requirements for particle counting and analysis.
Static charge can attract particles like a magnet. This test measures: Iso 14644-3.pdf
ISO 14644-3 is not glamorous. It does not make headlines. But it is the reason a surgeon can trust a sterile implant, a pharmacist can compound a biologic, and a semiconductor fab can achieve 5-nanometer yields. ISO 14644-3 is a part of the ISO
Determining how long it takes for the cleanroom to return to its specified cleanliness level after a contamination event. This test measures: ISO 14644-3 is not glamorous
The 2019 revision added specific guidance for measuring particles down to the (as small as 0.01 µm). If you work with advanced materials or gene therapies, this is vital.