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+ frame ceiling raft
Description
Ceiling raft made of polyester with fabric covering and visible frame, rectangular or round. Free of mineral fibres and allergy-friendly, recycled content of up to 20 per cent, 100 per cent recyclable and reusable.
Technical data
Material: Polyester, cover fabric of polyester or wool
Surface: Fabric covering in the visible polyester frame
Up to fire class: B1 — per DIN 4102 by component: absorber and polyester cover fabric B1, wool cover fabric B2
Certifications: Oeko-Tex Standard 100 (S24-3191, Hohenstein HTTI), Indoor Air Comfort GOLD, emission class A+ (VOC, France)
Colours: Frame in 5 colours, cover fabrics of polyester or wool, 30 colours in the stock range
Measurement data
Sound absorption
ISO 354 – reverberation chamber· 17 variants
Aobj
4.30 m²
at 1 kHz
Frequency values
Aobj per ISO 354 · third-octave band (m²)
| f (Hz) | 125 | 160 | 200 | 250 | 315 | 400 |
|---|---|---|---|---|---|---|
| Aobj | 1.10 | 2.30 | 2.40 | 2.90 | 2.90 | 3.40 |
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| Compare | Value | |
|---|---|---|
| 400 mm | Aobj4.30m² | |
| 200 mm | Aobj3.90m² | |
| 400 mm | Aobj3.20m² | |
| 200 mm | Aobj3.00m² | |
| 240 mm | Aobj2.90m² | |
| 240 mm | Aobj2.60m² | |
| 400 mm | Aobj2.40m² | |
| 240 mm | Aobj2.30m² | |
| 200 mm | Aobj2.10m² | |
| 240 mm | Aobj2.00m² | |
| 400 mm | Aobj1.90m² | |
| 200 mm | Aobj1.80m² | |
| 240 mm | Aobj1.70m² | |
| 240 mm | Aobj1.40m² | |
| 400 mm | Aobj1.00m² | |
| 200 mm | Aobj0.90m² | |
| 240 mm | Aobj0.80m² |
Test report: H231016P1/9j_rev00
Institute: GiB mbH, Arnstorf
Measurement date: 2023-10-16
Room volume: 208.5 m³
Measured values as a table (17 measurements)
| 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 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 40 mm · 240 mm · ceiling raft ø 750 mm (Aobj, m²) | – | 0.00 | 0.00 | 0.20 | 0.40 | 0.50 | 0.60 | 0.70 | 0.80 | 0.80 | 0.80 | 0.80 | 0.90 | 0.80 | 0.80 | 0.80 | 0.80 | 0.70 | 0.70 |
| 40 mm · 240 mm · ceiling raft ø 1000 mm (Aobj, m²) | – | 0.10 | 0.20 | 0.40 | 0.80 | 0.90 | 1.00 | 1.20 | 1.20 | 1.20 | 1.30 | 1.40 | 1.30 | 1.30 | 1.30 | 1.30 | 1.30 | 1.20 | 1.20 |
| 40 mm · 240 mm · ceiling raft ø 1250 mm (Aobj, m²) | – | 0.20 | 0.40 | 0.80 | 1.10 | 1.40 | 1.50 | 1.80 | 1.80 | 1.80 | 1.80 | 2.00 | 1.90 | 1.90 | 1.90 | 1.90 | 1.90 | 1.90 | 1.80 |
| 40 mm · 240 mm · ceiling raft ø 1500 mm (Aobj, m²) | – | 0.30 | 0.50 | 1.10 | 1.50 | 1.90 | 2.10 | 2.30 | 2.40 | 2.30 | 2.40 | 2.60 | 2.60 | 2.60 | 2.60 | 2.60 | 2.60 | 2.50 | 2.50 |
| 40 mm · 240 mm · ceiling raft 1000 x 1000 mm (Aobj, m²) | – | 0.10 | 0.20 | 0.70 | 1.10 | 1.10 | 1.30 | 1.40 | 1.40 | 1.50 | 1.50 | 1.70 | 1.70 | 1.60 | 1.50 | 1.60 | 1.60 | 1.60 | 1.50 |
| 40 mm · 240 mm · ceiling raft 1500 x 1000 mm (Aobj, m²) | – | 0.20 | 0.30 | 0.90 | 1.40 | 1.60 | 1.90 | 2.10 | 2.00 | 2.10 | 2.10 | 2.30 | 2.20 | 2.20 | 2.20 | 2.20 | 2.20 | 2.10 | 2.20 |
| 40 mm · 240 mm · ceiling raft 2000 x 1000 mm (Aobj, m²) | – | 0.30 | 0.50 | 1.20 | 1.70 | 2.00 | 2.50 | 2.70 | 2.80 | 2.60 | 2.60 | 2.90 | 2.80 | 2.80 | 2.80 | 2.80 | 2.80 | 2.70 | 2.80 |
| 40 mm · 200 mm · ceiling raft 1200 x 1200 mm (Aobj, m²) | – | – | – | 0.90 | 1.10 | 1.40 | 1.60 | 2.00 | 2.10 | 2.30 | 2.10 | 2.10 | 2.20 | 2.20 | 2.20 | 2.30 | 2.10 | 2.20 | 2.10 |
| 40 mm · 400 mm · ceiling raft 1200 x 1200 mm (Aobj, m²) | – | – | 0.50 | 1.20 | 1.50 | 1.60 | 1.60 | 1.70 | 1.90 | 2.10 | 2.30 | 2.40 | 2.40 | 2.40 | 2.40 | 2.50 | 2.40 | 2.50 | 2.50 |
| 40 mm · 400 mm · ceiling raft 1800 x 1200 mm (Aobj, m²) | – | – | – | 1.60 | 2.00 | 2.10 | 2.20 | 2.60 | 2.60 | 3.10 | 3.10 | 3.20 | 3.30 | 3.50 | 3.40 | 3.60 | 3.50 | 3.50 | 3.70 |
| 40 mm · 200 mm · ceiling raft 1800 x 1200 mm (Aobj, m²) | – | – | – | 1.30 | 1.60 | 1.80 | 2.00 | 2.90 | 3.10 | 3.20 | 3.10 | 3.00 | 3.20 | 3.20 | 3.20 | 3.30 | 3.00 | 2.90 | 3.20 |
| 40 mm · 200 mm · ceiling raft ø 800 mm (Aobj, m²) | – | – | – | – | – | – | 0.60 | 0.70 | 0.80 | 0.90 | 0.90 | 0.90 | 0.90 | 0.90 | 0.80 | 0.90 | 0.80 | 0.80 | 0.80 |
| 40 mm · 400 mm · ceiling raft ø 800 mm (Aobj, m²) | – | – | – | – | 0.60 | 0.60 | 0.60 | 0.70 | 0.70 | 0.80 | 0.90 | 1.00 | 1.00 | 1.00 | 1.00 | 1.00 | 1.00 | 1.00 | 1.00 |
| 40 mm · 400 mm · ceiling raft ø 1200 mm (Aobj, m²) | – | – | – | 1.00 | 1.10 | 1.10 | 1.30 | 1.40 | 1.50 | 1.70 | 1.80 | 1.90 | 2.00 | 2.00 | 2.00 | 2.00 | 2.00 | 2.00 | 2.10 |
| 40 mm · 200 mm · ceiling raft ø 1200 mm (Aobj, m²) | – | – | – | 0.70 | 0.90 | 0.90 | 1.20 | 1.60 | 1.80 | 1.80 | 1.80 | 1.80 | 1.90 | 1.80 | 1.80 | 1.90 | 1.80 | 1.70 | 1.70 |
| 40 mm · 200 mm · ceiling raft 2400 x 1200 mm (Aobj, m²) | – | – | – | 1.80 | 1.80 | 2.30 | 2.80 | 3.70 | 4.00 | 4.00 | 4.10 | 3.90 | 4.10 | 4.10 | 4.20 | 4.20 | 4.00 | 3.90 | 4.10 |
| 40 mm · 400 mm · ceiling raft 2400 x 1200 mm (Aobj, m²) | – | – | 1.10 | 2.30 | 2.40 | 2.90 | 2.90 | 3.40 | 3.40 | 4.00 | 4.20 | 4.30 | 4.50 | 4.50 | 4.50 | 4.70 | 4.60 | 4.50 | 4.60 |
Measured values as a table (17 measurements)
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