FoamBroadband absorber
Data source
PTB reference data
Physikalisch-Technische Bundesanstalt
Source: Herstellerangabe im Internet
Absorbent with topcoat of LDA12.5SE combined absorbent and aluminized polyester, self adhesive
LA25SE
PTB reference data
Original description
Absorbent with topcoat of LDA12.5SE combined absorbent and aluminized polyester, self adhesive
Material properties
Manufacturer: Nordisk Akustik A/S
Thickness: 25 mm
Backing: aluminized polyester
Mounting: self adhesive
Measurement data
Sound absorption
ISO 354 – reverberation chamber
αw
0.50
Frequency values
αp nach ISO 11654
| f (Hz) | 125 | 250 | 500 | 1k | 2k | 4k |
|---|---|---|---|---|---|---|
| αp | 0.20 | 0.20 | 0.40 | 0.75 | 0.60 | 0.65 |
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Method (354): Measured