WoodHighly absorbent
Data source
PTB reference data
Physikalisch-Technische Bundesanstalt
Source: Produktdatenblatt des Herstellers
Value from the PTB table, not verified
Heraklith Travertin micro acoustic panel
Travertin micro
PTB reference data
Original description
Heraklith Travertin micro acoustic panel
Material properties
Manufacturer: Deutsche Heraklith GmbH
Thickness: 1 in, 1.4 in
Wall distance: 0 in, 1.2 in, 13 in, 1.2 in, 11 in, 11 in
Backing: 1.2 in Heraflax, 1.2 in Heralan, 1.6 in Heraflax-SAP, 1.6 in Heralan
Measurement data
Sound absorption
Reverberation chamber (ASTM C423 / ISO 354)· 9 variants
NRC
0.55
Frequency values
αp per octave band
| f (Hz) | 125 | 250 | 500 | 1k | 2k | 4k |
|---|---|---|---|---|---|---|
| αp | 0.40 | 0.70 | 0.55 | 0.55 | 0.50 | 0.55 |
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| Compare | Value | |||
|---|---|---|---|---|
| 1 in | 15 kg / m² | 11 in Abstand / 1.6 in Heralan | NRC0.55 | |
| 1 in | 15 kg / m² | 1.2 in | NRC0.50 | |
| 1 in | 15 kg / m² | 13 in | NRC0.50 | |
| 1 in | 15 kg / m² | without Abstand | NRC0.50 | |
| 1 in | 15 kg / m² | 11 in Abstand / 1.6 in Heraflax-SAP | NRC0.45 | |
| 1.4 in | 19 kg / m² | without Abstand | NRC0.40 | |
| 1.4 in | 19 kg / m² | 1.2 in Abstand / 1.2 in Heralan | NRC0.40 | |
| 1 in | 15 kg / m² | 1.2 in Abstand / 1.2 in Heraflax | NRC0.35 | |
| 1 in | 15 kg / m² | 1.2 in Abstand / 1.2 in Heralan | NRC0.35 |
NRC: 0.55 (derived from ISO 354 lab data)
Dimensions: 600 / 1200 x 600, 625 / 1250 x 625, 1000 x 20 in
Application: Decken- and Wandverkleidung
Measured values as a table (9 measurements)
| Build-up | NRC | 125 Hz | 250 Hz | 500 Hz | 1000 Hz | 2000 Hz | 4000 Hz |
|---|---|---|---|---|---|---|---|
| 25 mm · 15 kg / m² · without Abstand · Decken- and Wandverkleidung · feinporig white | 0.50 | 0.05 | 0.22 | 0.67 | 0.58 | 0.44 | 0.47 |
| 25 mm · 15 kg / m² · 30 mm · Decken- and Wandverkleidung · feinporig white | 0.50 | 0.06 | 0.50 | 0.64 | 0.47 | 0.47 | 0.53 |
| 25 mm · 15 kg / m² · 330 mm · Decken- and Wandverkleidung · feinporig white | 0.50 | 0.66 | 0.65 | 0.45 | 0.46 | 0.48 | 0.48 |
| 25 mm · 15 kg / m² · 30 mm Abstand / 30 mm Heraflax · Decken- and Wandverkleidung · feinporig white | 0.35 | 0.40 | 0.49 | 0.42 | 0.31 | 0.20 | 0.15 |
| 25 mm · 15 kg / m² · 30 mm Abstand / 30 mm Heralan · Decken- and Wandverkleidung · feinporig white | 0.35 | 0.48 | 0.45 | 0.41 | 0.33 | 0.19 | 0.07 |
| 25 mm · 15 kg / m² · 270 mm Abstand / 40 mm Heraflax-SAP · Decken- and Wandverkleidung · feinporig white | 0.45 | 0.65 | 0.57 | 0.42 | 0.39 | 0.41 | 0.36 |
| 25 mm · 15 kg / m² · 290 mm Abstand / 40 mm Heralan · Decken- and Wandverkleidung · feinporig white | 0.55 | 0.39 | 0.68 | 0.53 | 0.53 | 0.51 | 0.54 |
| 35 mm · 19 kg / m² · without Abstand · Decken- and Wandverkleidung · feinporig white | 0.40 | 0.21 | 0.39 | 0.55 | 0.40 | 0.29 | 0.38 |
| 35 mm · 19 kg / m² · 30 mm Abstand / 30 mm Heralan · Decken- and Wandverkleidung · feinporig white | 0.40 | 0.46 | 0.60 | 0.42 | 0.32 | 0.34 | 0.39 |
Measured values as a table (9 measurements)
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