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🛰️ Cleanroom Class Converter (ISO 14644 ↔ FS 209E)
Particle concentration → ISO / FS 209E class lookup for incoming inspection and routine monitoring
Notes
· ISO 14644-1: C_n = 10^N·(0.1/D)^2.08 particles/m³; solve for class N, and convert ≥0.5µm/ft³ to FS 209E class.
· 1 ft³ = 0.0283168 m³; typical mapping: ISO 5 ≈ Class 100, ISO 6 ≈ 1000, ISO 7 ≈ 10000, ISO 8 ≈ 100000.
About Cleanroom Classification Converter
Convert cleanroom classes between ISO 14644-1 and FED-STD-209E: particle concentration limits by size, class comparison and UCL judgment per ISO 14644-1.
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