| Standard | Focus | Particle Size | Typical Use | |----------|-------|--------------|-------------| | | Particle concentration | 0.05 – 500 µm | Cleanroom surfaces, equipment, parts | | ISO 14644-10 | Chemical concentration | Molecular | Residues, ions, organic films | | ISO 14644-11 | Biocontamination | Viable particles | Sterile areas | | IEST-STD-CC1246 | Surface particles (older) | ≥ 0.5 µm | Aerospace (still in use but superseded) |
Have you implemented surface classification per Part 9? Let’s discuss below. 👇 Iso 14644-9 Pdf