Physikalisch-Technische Bundesanstalt
Source: C.M.Harris, Noise Control in Buildings, McGraw Hill 1994
K13FC
Original description
Cellulose-base fiber, white, sprayed on, textured finish
ISO 354 – reverberation chamber· 2 variants
αp per ISO 11654
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| Compare | Value | ||
|---|---|---|---|
| 1 inch | 0 | αw0.80 | |
| 3/4 inch | 400 mm | αw0.72 |
Weight / density: 0.5 lb/ft²
