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This Document Has Been Superseded
A newer publication replaces it: BSI BS EN ISO 14644-3
Environmental cleanliness in enclosed spaces. Guide to in situ high efficiency filter leak testing
This Published Document provides information supplementary to the provisions of BS EN ISO 14644‑3:2005. In particular, it gives recommendations and explanatory guidance for in situ leak testing of high efficiency filters using an oil aerosol challenge and photometer.
It also provides guidance on the procurement of replacement filters (Annex A) and information that might be required in a test report (Annex B).
The guidance contained in this document is for the leak testing of high efficiency air filters that can be face scanned.
The document does not provide information on other tests carried out on high efficiency filters installed in cleanrooms, such as:
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