Sample data from Engineering Database — 375 reference tables, deterministic calculators, and Engineering AI. Sign up free
Cleanroom Classification: ISO 14644-1
ISO CLASS 6 ACH to ISO CLASS 9 PARTICLES
Cleanroom classification data including ISO 14644-1:2015 particle count limits for Classes 1-9, air change rate guidelines, pressure differentials, temperature/humidity ranges, gowning requirements, and EU GMP Annex 1 (2022) Grade A/B/C/D records
| classification standard | record id | ach max (changes/hr) | ach min (changes/hr) | ach notes | eu gmp grade | fed std 209e equivalent | gowning description | gowning level | iso class | monitoring frequency | particles 0 1um per m3 (particles/m3) | particles 0 2um per m3 (particles/m3) | particles 0 3um per m3 (particles/m3) | particles 0 5um per m3 (particles/m3) | particles 1 0um per m3 (particles/m3) | particles 5 0um per m3 (particles/m3) | pressure differential pa min (Pa) | pressure differential pa typical (Pa) | pressure type | recovery time min (min) | rh pct max (%RH) | rh pct min (%RH) | standard | temp c max (degC) | temp c min (degC) | typical applications |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| ISO 14644-1 | ISO CLASS 6 ACH | 240 | 150 | Turbulent HEPA; 25-40% ceiling coverage | — | — | Cleanroom gown; hood; gloves; shoe covers; face mask | 3 | 6 | Every 6 months classification; periodic viable monitoring | — | — | — | — | — | — | 12 | 15 | positive | 5 | 50 | 30 | ISO 14644-1:2015; IEST-RP-CC012.3; ASHRAE Applications 2023 Ch.19 | 22 | 20 | Semiconductor back-end; medical device assembly; hard disk drive components; ophthalmic manufacturing |
| ISO 14644-1 | ISO CLASS 6 PARTICLES | — | — | — | — | 1000 | — | — | 6 | — | 1,000,000 | 237,000 | 102,000 | 35,200 | 8,320 | 293 | — | — | — | — | — | — | ISO 14644-1:2015 | — | — | — |
| ISO 14644-1 | ISO CLASS 7 ACH | 150 | 60 | Turbulent HEPA; 15-25% ceiling coverage | C | 10000 | Cleanroom gown; hood; gloves; dedicated shoes or shoe covers; face mask | 3 | 7 | Every 6 months classification; viable monitoring per risk assessment | — | — | — | 352,000 | 83,200 | 2,930 | 10 | 15 | positive | 15 | 60 | 30 | ISO 14644-1:2015; EU GMP Annex 1 2022; FDA Guidance Sterile Drug Products 2004; IEST-RP-CC012.3 | 24 | 18 | Pharmaceutical non-sterile mfg (Grade C); semiconductor assembly; medical device cleanroom; aerospace component assembly |
| ISO 14644-1 | ISO CLASS 7 PARTICLES | — | — | — | C at rest | 10000 | — | — | 7 | — | — | — | — | 352,000 | 83,200 | 2,930 | — | — | — | — | — | — | ISO 14644-1:2015 | — | — | — |
| ISO 14644-1 | ISO CLASS 8 ACH | 25 | 10 | Turbulent HEPA; 5-15% ceiling coverage | D | 100000 | Dedicated garments; hair cover; shoe covers or dedicated shoes | 2 | 8 | Annual or biannual classification; basic environmental monitoring | — | — | — | 3,520,000 | 832,000 | 29,300 | 5 | 10 | positive | 30 | 65 | 30 | ISO 14644-1:2015; EU GMP Annex 1 2022; FDA Guidance Sterile Drug Products 2004; IEST-RP-CC012.3 | 26 | 18 | Pharmaceutical support areas (Grade D); tablet manufacturing; medical device packaging; food processing; automotive paint booths |
| ISO 14644-1 | ISO CLASS 8 PARTICLES | — | — | — | D at rest | 100000 | — | — | 8 | — | — | — | — | 3,520,000 | 832,000 | 29,300 | — | — | — | — | — | — | ISO 14644-1:2015 | — | — | — |
| ISO 14644-1 | ISO CLASS 9 ACH | 20 | 5 | Minimal HVAC filtration; conventional HVAC | — | — | Normal work attire with basic hair cover and shoe covers if needed | 1 | 9 | Annual; basic area monitoring | — | — | — | 35,200,000 | 8,320,000 | 293,000 | — | — | positive | — | 70 | 30 | ISO 14644-1:2015; ASHRAE Applications 2023 Ch.19 | 28 | 16 | Controlled manufacturing areas; general assembly; background corridor areas adjacent to cleanrooms |
| ISO 14644-1 | ISO CLASS 9 PARTICLES | — | — | — | — | — | — | — | 9 | — | — | — | — | 35,200,000 | 8,320,000 | 293,000 | — | — | — | — | — | — | ISO 14644-1:2015 | — | — | — |
What else is in Engineering Database
Iron Engine ↗Engineering AI at ironengine.ai
AI built for engineering. Searches the engineering database, performs calculations, gives source-backed engineering insights.
Get started for free ↗Reference Data375 engineering tablesMaterial properties, pipe and shape dimensions, code tables, and electrical ratings across mechanical, civil, chemical, electrical, materials, and manufacturing engineering.
Browse dataCalculatorsDeterministic engineering calculatorsSizing, checking, and conversion tools that run against the reference tables. Inputs are code-compliant, outputs are traceable to the source standard.
Browse calculators