Physikalisch-Technische Bundesanstalt
Source: C.M.Harris, Noise Control in Buildings, McGraw Hill 1994
Type M-173 – Fibroplank
Original description
wood fibers with portland cement binder
ISO 354 – reverberation chamber· 4 variants
αp per ISO 11654
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| Compare | Value | |
|---|---|---|
| 3 inches | αw0.65 | |
| 2 1/2 inch | αw0.62 | |
| 2 inches | αw0.57 | |
| 1 1/2 inch | αw0.52 |
Weight / density: 8 lb/ft²
Dimensions: 96 x 108 inches
Distance: 0
