Physikalisch-Technische Bundesanstalt
Source: Herstellerangabe unter http://www.lignoform.com, Feb. 01
Lignoform Perforated Panel, Perfoplatte 16/16 blind hole 12/3
Original description
Lignoform Perfoplatte 16/16 blind hole 12/3 (ball-impact resistant)
ISO 354 – reverberation chamber
αp nach ISO 11654
Create a permanent free account — Access frequency bands, variants and export.
Free. No password required.
Method (354): Measured