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  1. nebpmp

    hepa filter test

    Hello everybody, first of all i´m from spain and i´m sorry if my english isn´t very well, i hope you understand me. I want to do an integrity test in HEPA filters with a particle counter in a laminar flow and biological safety cabinets. Looking the UNE 14644-3 (it is the same as ISO 14644-3 but...

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