ISO 14644-1:2015 Compliant Cleanroom Monitoring

ISO 14644-1 specifies the classification of air cleanliness in terms of the concentration of airborne particles in cleanrooms and clean zones. It details sampling procedures and monitoring plans, as well as defining how validation sampling plans and data evaluation should be conducted.

A statistical approach is taken for the selection and number of sampling locations, and the evaluation of the data collected. This approach allows each location to be treated independently with at least a 95% level of confidence that at least 90% of the cleanroom or clean zone areas will comply with the maximum particle concentration limit for the target class of air cleanliness.

Cleanroom Monitoring and Testing

ISO 14644-1:2015 – Classification of air cleanliness by particle concentration

To ensure that your cleanroom continues to perform efficiently and your critical processes remain protected, it needs to be validated to prove it complies with ISO 14644-1.

Each sampling location is to be evaluated separately and all sampling locations must pass for a cleanroom/zone to comply.

ISO 14644-2:2015 – Monitoring to provide evidence of cleanroom performance related to air cleanliness by particle concentration

ISO 14644-2 recommends customers complete risk assessments and monitoring plans to determine the frequency of testing and validation to their processes.

ISO 14644-2 states the maximum time interval between airborne particle concentration testing of a cleanroom of ISO class 5 and below is 6 months, and ISO class 6 and above is 12 months.

Although this guidance is provided for validating your controlled environment, the scope and frequency of your validations should be defined by your process-specific risk assessment.


Talk to the experts at Connect 2 Cleanrooms about cleanroom validation

With a tailored cleanroom qualification testing schedule, Connect 2 Cleanrooms will certify the class or grade of your cleanroom facilities and localised clean air devices. To discuss your monitoring, testing, and validation requirements, contact us.

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