WoodLow-frequency absorber

Data source

PTB reference data

Physikalisch-Technische Bundesanstalt

Source: Herstellerunterlagen

Value from the PTB table, not verified

ESO MODULATOR 22/3 plywood ceiling facing with mineral wool

ESO MODULATOR 22/3

PTB reference data

Original description

ESO MODULATOR 22/3 plywood ceiling facing with mineral wool

Material properties

Manufacturer: ESO-Akustik Brigitte Schmelzle
Thickness: 5 mm
Wall distance: 200 mm (filled), 50 mm (filled)

Measurement data

Sound absorption

ISO 354 – reverberation chamber· 2 variants

αw
0.15

Frequency values

αp per ISO 11654

f (Hz)1252505001k2k4k
αp0.550.250.150.100.100.20

Create a permanent free accountAccess frequency bands, variants and export.

Free. No password required.

CompareValue
200 mm (gefüllt)αw0.15
50 mm (gefüllt)αw0.10

Application: Holzrahmenkonstruktion

Terms of use
Measured values as a table (2 measurements)
ESO MODULATOR 22/3 plywood ceiling facing with mineral wool: sound absorption coefficient αs per ISO 354 by frequency and test build-up
Build-upαw100 Hz125 Hz160 Hz200 Hz250 Hz315 Hz400 Hz500 Hz630 Hz800 Hz1000 Hz1250 Hz1600 Hz2000 Hz2500 Hz3150 Hz4000 Hz5000 Hz
5 mm · 200 mm (gefüllt) · Holzrahmenkonstruktion · geschlossene Holzoberfläche0.150.780.540.350.320.230.180.100.130.160.090.120.080.100.120.130.220.180.18
5 mm · 50 mm (gefüllt) · Holzrahmenkonstruktion · geschlossene Holzoberfläche0.100.530.580.550.350.270.170.130.130.080.070.100.070.100.090.090.080.120.18
Measured values as a table (2 measurements)

Access frequency bands, variants and export. Create a permanent free account

Last updated:

Calculate reverberation time with this product