What are ISO 14644-1 and Federal Standard 209E?

Cleanrooms are determined by their level of cleanliness based on the particle counts in the environment.  The ISO-14644-1 Standards range from ISO1(cleanest) to ISO9.  The classifications are based on the 0.5micron size of particles per cubic meter and are maximum limits allowable in the air. 

ISO1-  xx            

ISO2-  4

ISO3-  35                      or Fed STD 209 Class1 

ISO4-  352E                 or Fed STD 209 Class10

ISO5-  3,520                 or Fed STD 209 Class100

ISO6-  35,200               or Fed STD 209 Class1,000 

ISO7-  352,000             or Fed STD 209 Class10,000

ISO8-  3,520,000          or Fed STD 209 Class100,000

ISO9-  35,200,000

Cleanetics tests to meet ISO14644-1 standards and utilizes top testing equipment.