Physikalisch-Technische Bundesanstalt
Source: Herstellerangabe
Type 1/3 – Makustik MA20 veneered acoustic panel
Original description
MAkustik MA20 veneered acoustic panel Type 1/3, 1 mm hole dia., 9% open area
ISO 354 – reverberation chamber
αp nach ISO 11654
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Method (354): Measured
