Mineral woolHighly absorbent
Data source
PTB reference data
Physikalisch-Technische Bundesanstalt
Source: Manufacturer data
Value from the PTB table, not verified
Ecophon Sombra D glass wool acoustic ceiling tile
Ecophon – Sombra D
PTB reference data
Original description
Ecophon Sombra D glass wool acoustic ceiling tile
Material properties
Manufacturer: Ecophon GmbH
Thickness: 20 mm
Wall distance: 50 mm, 200 mm
Backing: non-woven
Surface: matte black dyed non-woven
Application: ceiling
Mounting: concealed sub-frame made of galvanized steel
Measurement data
Sound absorption
ISO 354 – reverberation chamber· 2 variants
αw
0.90
Frequency values
αp per ISO 11654
| f (Hz) | 125 | 250 | 500 | 1k | 2k | 4k |
|---|---|---|---|---|---|---|
| αp | 0.55 | 0.80 | 0.90 | 0.85 | 0.95 | 0.95 |
Create a permanent free account — Access frequency bands, variants and export.
Free. No password required.
| Compare | Value | |
|---|---|---|
| tKh = 200 mm (totale Konstruktionshöhe) | αw0.90 | |
| tKh = 50 mm (totale Konstruktionshöhe) | αw0.80 |
Weight / density: 4 kg / m²
Dimensions: 600 x 600 mm, 625 x 625 mm, 1200 x 600 mm, 1250 x 625 mm
Application: Deckenplatten with geringem Lichtreflexionsgrad, z.B. for Kinos
Measured values as a table (2 measurements)
| Build-up | αw | 63 Hz | 125 Hz | 250 Hz | 500 Hz | 1000 Hz | 2000 Hz | 4000 Hz |
|---|---|---|---|---|---|---|---|---|
| 20 mm · 4 kg / m² · tKh = 50 mm (totale Konstruktionshöhe) · Deckenplatten with geringem Lichtreflexionsgrad, z.B. for Kinos · mattschwarzes fleece | 0.80 | 0.05 | 0.15 | 0.50 | 0.85 | 1.00 | 1.00 | 0.95 |
| 20 mm · 4 kg / m² · tKh = 200 mm (totale Konstruktionshöhe) · Deckenplatten with geringem Lichtreflexionsgrad, z.B. for Kinos · mattschwarzes fleece | 0.90 | 0.15 | 0.55 | 0.80 | 0.90 | 0.85 | 0.95 | 0.95 |
Measured values as a table (2 measurements)
Access frequency bands, variants and export. Create a permanent free account
Last updated:
