FabricHighly absorbent
Data source
PTB reference data
Physikalisch-Technische Bundesanstalt
Source: Manufacturer data
Value from the PTB table, not verified
mbakustik curtain Type AV 32, 2-layer gathered
Type AV 32
PTB reference data
Original description
mbakustik curtain Type AV 32, 2-layer gathered
Material properties
Manufacturer: mbakustik
Wall distance: 0.60 m
Up to fire class: B1 not easily flammable
Mounting: 1.7-fold gathered
Measurement data
Sound absorption
ISO 354 – reverberation chamber
αw
0.95
Frequency values
αp nach ISO 11654
| f (Hz) | 125 | 250 | 500 | 1k | 2k | 4k |
|---|---|---|---|---|---|---|
| αp | 0.40 | 0.65 | 1.00 | 1.00 | 1.00 | 1.00 |
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Value from the PTB table, not verified
Measured values as a table (1 measurement)
| Build-up | αw | 100 Hz | 125 Hz | 160 Hz | 200 Hz | 250 Hz | 315 Hz | 400 Hz | 500 Hz | 630 Hz | 800 Hz | 1000 Hz | 1250 Hz | 1600 Hz | 2000 Hz | 2500 Hz | 3150 Hz | 4000 Hz | 5000 Hz |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 1030g/m² · 0,60m | 0.95 | 0.31 | 0.41 | 0.49 | 0.60 | 0.65 | 0.77 | 0.85 | 0.96 | 1.13 | 1.29 | 1.24 | 1.32 | 1.35 | 1.38 | 1.42 | 1.40 | 1.44 | 1.44 |
Measured values as a table (1 measurement)
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