Manufacturer
Lindner Group
Lindner Group, Arnstorf: metal ceilings, heating and cooling ceilings, raised floors, wall and ceiling linings and the MUTE+ sound absorber line.
Documents
MUTE+ board wall absorber
Description
Polyester absorber mounted on the wall, rectangular, round or as a free form. Free of mineral fibres and allergy-friendly, recycled content of up to 20 percent, 100 percent recyclable and reusable.
Technical data
Material: Polyester
Surface: Gloss level 1 to 5 GU per colour
Up to fire class: B1 — per DIN 4102
Certifications: Oeko-Tex Standard 100 (S24-3191, Hohenstein HTTI), Indoor Air Comfort GOLD, emission class A+ (VOC, France)
Colours: white, grey marbled, darkgrey marbled, nightgrey marbled, black, further polyester colours on request
Measurement data
Sound absorption
Reverberation chamber (ASTM C423 / ISO 354)· 4 variants
NRC
0.85
Frequency values
αp per octave band
| f (Hz) | 125 | 250 | 500 | 1k | 2k | 4k |
|---|---|---|---|---|---|---|
| αp | 0.15 | 0.50 | 0.85 | 1.00 | 1.00 | 1.00 |
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| Compare | Value |
|---|---|
| NRC0.85 | |
| Aobj2.80m² | |
| Aobj2.20m² | |
| Aobj1.60m² |
Test report: H220713J1/1a_rev00
NRC: 0.85 (derived from ISO 354 lab data)
Object area: 113 sq ft
Measured values as a table (4 measurements)
| 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 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 40 mm · plane absorber | 0.85 | 0.06 | 0.11 | 0.23 | 0.38 | 0.50 | 0.64 | 0.76 | 0.86 | 0.94 | 1.03 | 1.04 | 1.06 | 1.09 | 1.09 | 1.09 | 1.04 | 1.04 | 1.07 |
| 40 mm · 48 mm · absorber 2000 x 1000 mm (Aobj, m²) | – | 0.20 | 0.20 | 0.50 | 0.80 | 1.10 | 1.40 | 1.90 | 2.20 | 2.60 | 2.70 | 2.80 | 2.70 | 2.70 | 2.70 | 2.60 | 2.40 | 2.50 | 2.50 |
| 40 mm · 48 mm · absorber 1000 x 1000 mm (Aobj, m²) | – | 0.10 | 0.10 | 0.30 | 0.50 | 0.60 | 0.80 | 1.10 | 1.30 | 1.50 | 1.50 | 1.60 | 1.50 | 1.60 | 1.40 | 1.40 | 1.30 | 1.40 | 1.30 |
| 40 mm · 48 mm · absorber 1500 x 1000 mm (Aobj, m²) | – | 0.10 | 0.10 | 0.40 | 0.60 | 0.80 | 1.00 | 1.50 | 1.80 | 2.00 | 2.10 | 2.20 | 2.10 | 2.10 | 2.10 | 2.00 | 1.90 | 1.90 | 1.80 |
Measured values as a table (4 measurements)
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