Norm-Entwurf
PR NF E51-006-3
; PR NF ISO 13347-3
PR NF E51-006-3
; PR NF ISO 13347-3
Industrial fans - Determination of fan sound power level under standardized laboratory conditions - Part 3 : enveloping surface methods.
Titel (englisch)
Industrial fans - Determination of fan sound power level under standardized laboratory conditions - Part 3 : enveloping surface methods.
