DIN EN ISO 14644-2:2001-02

The document specifies requirements for periodic testing of a cleanroom or clean zone to prove its continued compliance with ISO 14644-1 for the designated classification of airborne particulate cleanliness. These requirements invoke the test described in ISO 14644-1 for the classification of the cleanroom or clean zone. Additional tests are also specified, to be carried out in accordance with the requirements of this document. Optional tests, to be applied at the user's discretion, are also identified. It also specifies requirements for the monitoring of a cleanroom or clean zone to provide evidence of its continued compliance with ISO 14644-1 for the designated classification of airborne particulate cleanliness.