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Field test method for the easurement of filter efficiency (NT TR 531)
Report #: NT TR 531 Approved: October 2002 Author(s): Matti Lehtimäki, Aimo Taipale Size: 922.79 KB Abstract Ventilation filters are normally classified with the Read more…
Nordic cooperation – Removing barriers – Approved once accepted everywhere
Report #: NT TR 531 Approved: October 2002 Author(s): Matti Lehtimäki, Aimo Taipale Size: 922.79 KB Abstract Ventilation filters are normally classified with the Read more…