FoamHighly absorbent
Data source
PTB reference data
Physikalisch-Technische Bundesanstalt
Source: H. Lenz, Marktübersicht schallabsorbierende Anordnungen, Ruhr Universität Bochum, 1981, Seite 254
Value from the PTB table, not verified
Soning Barynal – 50 F 20 foam absorber
Barynal – 50 F 20
PTB reference data
Original description
Soning Barynal – 50 F 20 foam absorber
Material properties
Manufacturer: Soning
Thickness: 2 in
Wall distance: 0 in
Backing: optionally with self-adhesive backing coating
Surface: black, waterproof and oil-resistant surface layer
Up to fire class: not easily flammable
Measurement data
Sound absorption
Reverberation chamber (ASTM C423 / ISO 354)
NRC
0.70
derived from ISO 354 lab data
Frequency values
αp nach ISO 11654
| f (Hz) | 125 | 250 | 500 | 1k | 2k | 4k |
|---|---|---|---|---|---|---|
| αp | 0.15 | 0.35 | 0.90 | 0.80 | 0.75 | 0.60 |
Create a permanent free account — Access frequency bands, variants and export.
Free. No password required.
Value from the PTB table, not verified
NRC: 0.70 (derived from ISO 354 lab data)
Measured values as a table (1 measurement)
| Build-up | NRC | 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 | 6300 Hz |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 50 mm · 0 | 0.70 | 0.13 | 0.15 | 0.18 | 0.20 | 0.27 | 0.60 | 0.80 | 0.93 | 0.93 | 0.81 | 0.80 | 0.86 | 0.66 | 0.78 | 0.86 | 0.64 | 0.53 | 0.62 | 0.44 |
Measured values as a table (1 measurement)
Access frequency bands, variants and export. Create a permanent free account
Last updated: