Physikalisch-Technische Bundesanstalt
Source: Odeon (Index 800)
Original description
16-22 mm wood facing (tongue-and-groove or rabbeted) on frame over 50 mm cavity filled with mineral wool
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