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, not easily flammable
Type AV 32
PTB reference data
Original description
mbakustik curtain Type AV 32, 2-layer, not easily flammable
Material properties
Manufacturer: mbakustik
Wall distance: 0.15 m
Up to fire class: B1 not easily flammable
Application: curtain
Measurement data
Sound absorption
ISO 354 – reverberation chamber
αw
0.90
Frequency values
αp nach ISO 11654
| f (Hz) | 125 | 250 | 500 | 1k | 2k | 4k |
|---|---|---|---|---|---|---|
| αp | 0.20 | 0.60 | 0.95 | 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 · 0,15m | 0.90 | 0.13 | 0.21 | 0.30 | 0.43 | 0.59 | 0.80 | 0.85 | 0.98 | 1.02 | 1.07 | 1.06 | 1.08 | 1.13 | 1.12 | 1.09 | 1.09 | 1.09 | 1.09 |
Measured values as a table (1 measurement)
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