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.