Acoustic IndexAcoustic Index

MUTE+ skin ceiling raft

Aobj 0.80–2.90 m² at 1 kHz

CeilingFree-hanging
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Manufacturer

Lindner Group

Lindner Group, Arnstorf: metal ceilings, heating and cooling ceilings, raised floors, wall and ceiling linings and the MUTE+ sound absorber line.

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Documents

Datasheet

Description

Ceiling raft made of polyester with covering, frameless. Free of mineral fibres and allergy-friendly, recycled content of up to 20 per cent, 100 per cent recyclable and reusable. The tex900-949 fabric group consists of 75 per cent recycled polyester.

Technical data

Material: Polyester, cover fabric of polyester
Surface: Fabric drawn over the edge without a frame
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: Signal white, signal grey, silver grey, carmine red, ultramarine blue, light ivory, white green, pearl green, quartz grey, graphite grey

Measurement data

Sound absorption

ISO 354 – reverberation chamber· 6 variants

Aobj
2.90 m²
at 1 kHz

Frequency values

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CompareValue
ceiling raft 2000 x 1000 mmAobj2.90m²
ceiling raft 1500 x 1000 mmAobj2.30m²
ceiling raft ø 1250 mmAobj2.00m²
ceiling raft 1000 x 1000 mmAobj1.70m²
ceiling raft ø 1000 mmAobj1.30m²
ceiling raft ø 750 mmAobj0.80m²

Test report: H220914M1/3b_rev00

Distance: 240 mm

Test setup: ceiling raft 2000 x 1000 mm

Terms of use
Measured values as a table (6 measurements)
MUTE+ skin ceiling raft: sound absorption coefficient αs per ISO 354 by frequency and test build-up
Build-upαw100 Hz125 Hz160 Hz200 Hz250 Hz315 Hz400 Hz500 Hz630 Hz800 Hz1000 Hz1250 Hz1600 Hz2000 Hz2500 Hz3150 Hz4000 Hz5000 Hz
40 mm · 240 mm · ceiling raft 1000 x 1000 mm (Aobj, m²)–0.100.200.600.901.001.201.401.501.501.501.701.701.701.701.701.701.701.70
40 mm · 240 mm · ceiling raft 1500 x 1000 mm (Aobj, m²)–0.200.300.801.301.501.802.102.202.102.102.302.402.402.502.402.402.502.40
40 mm · 240 mm · ceiling raft 2000 x 1000 mm (Aobj, m²)–0.300.501.201.702.002.302.502.702.802.702.903.003.003.103.103.003.203.20
40 mm · 240 mm · ceiling raft ø 750 mm (Aobj, m²)–0.000.000.200.400.500.600.700.700.800.800.800.900.800.900.900.900.800.80
40 mm · 240 mm · ceiling raft ø 1000 mm (Aobj, m²)–0.100.100.400.700.801.001.201.201.201.201.301.401.301.401.401.401.401.30
40 mm · 240 mm · ceiling raft ø 1250 mm (Aobj, m²)–0.200.300.701.101.301.501.801.801.901.802.002.001.902.102.002.002.002.00
Measured values as a table (6 measurements)

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