The ISO standards for controlled environments
The ISO standards shown below are complemented by ISO-14698, dealing with bio-contamination control and monitoring.
ISO-14644-1 Classification by Airborne Particles ISO-14644-2 Monitoring for Compliance
ISO-14644-3 Measurement & Testing ISO-14644-4 Design, Construction and Start-up
ISO-14644-5 Cleanroom Operations ISO-14644-6 Terms, Definitions & Units
ISO-14644-7 Separative Enclosures ISO-14644-8 Molecular Contamination
| Cross-Standard | Classification | |||||
| ISO 14644-1 | 3 | 4 | 5 | 6 | 7 | 8 |
| BS 5295 | C | D | E/F | G/H | J | K |
| Federal Standard 209E | 1 | 10 | 100 | 1,000 | 10,000 | 100,000 |
