Physikalisch-Technische Bundesanstalt
Source: Herstellerangabe unter http://www.optac.de, Feb. 2001
OPTACust Noppe OCP-NOP-50
Original description
OPTACust Noppe OCP-NOP-50 polyurethane foam
ISO 354 – reverberation chamber
αp nach ISO 11654
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Method (354): Measured
