Physikalisch-Technische Bundesanstalt
Source: DNA-Tabelle 1968 b2.1-4
Original description
Perforated gypsum board with mineral fiber mat
ISO 354 – reverberation chamber· 2 variants
αp per ISO 11654
Create a permanent free account — Access frequency bands, variants and export.
Free. No password required.
| Compare | Value | |
|---|---|---|
| 200 mm | αw0.70 | |
| 400 mm | αw0.68 |
Weight / density: Mineralfasermatte: 1.05Kg/cm^2,
Dimensions: 1500 x 1250