Tested. Documented. Published.
Certifications and test reports behind MMT Acoustix® systems
Every acoustic and fire figure we publish comes from a named laboratory, on a named sample, at a stated thickness. The reports are below. Download them and check the numbers against the specification before you specify.
- 16Reports and certificates published
- ARAIAutomotive Research Association of India, absorption
- SGSFire and surface burning, including ASTM E84
- ISO 9001:2015Quality management system
01 / The register
Every report we hold, open to download
No sign-up, no form. If a document you need for a submittal is not here, ask and we will issue it against the products actually specified.
Sound absorption NRC, ASTM C423 and EN ISO 354
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Echsorbix® PET felt panels, NRC reportARAI, PuneSound absorption coefficients and NRC for the PET felt range.PDF
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SoundaXe® wooden slats, NRC reportARAI, PuneAbsorption performance of the acoustic wooden slat panels.PDF
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Wood wool acoustic panels, NRC reportThird-party labAbsorption data for the wood wool board range.PDF
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Acoustic curtains, NRC reportThird-party labIndependent absorption test for the acoustic curtain range.PDF
Sound transmission STC, ASTM E90 and E413
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SoundBlanket® MLV 2.5 mm, STC reportThird-party labTransmission loss and STC at 2000 kg/m³ density.PDF
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SoundBlanket® MLV 3 mm, STC reportThird-party labTransmission loss and STC at 2000 kg/m³ density.PDF
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SoundBlanket® MLV 4 mm, STC reportThird-party labTransmission loss and STC at 2000 kg/m³ density.PDF
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SoundBlanket® MLV 5 mm, STC reportThird-party labTransmission loss and STC at 2000 kg/m³ density.PDF
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SoundBlanket® MLV 8 mm, acoustic reportARAI, PuneAcoustic test data for the 8 mm mass loaded vinyl grade.PDF
Fire performance Surface burning and fire retardancy
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ASTM E84 surface burning, 2024SGSFlame spread and smoke developed indices. Commonly requested for North American compliance.PDF
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Echsorbix® PET felt panels, fire reportSGSFire performance of the PET felt panel range.PDF
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SoundBlanket® MLV, fire reportSGSFire performance of the mass loaded vinyl membrane.PDF
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Acoustic foam, fire retardancy reportThird-party labFire retardancy test for the profiled foam range, required for commercial and institutional specification.PDF
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Wooden acoustic slats, fire reportThird-party labFire performance for the wooden slat panel range.PDF
02 / How to read these
Read the report, not the headline figure
Each report states the exact sample, thickness and mounting condition tested. A figure measured on one thickness or one mounting method does not carry over to another. Three things worth checking before you quote a number in a specification:
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01
ThicknessIt changes the result
- PET felt is NRC 0.30 at 9 mm and 0.60 at 24 mm. Same material, different number.
- MLV is reported per thickness for the same reason, which is why there are four separate STC reports.
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02
MountingAir gap matters
- A panel tested with an air cavity behind it absorbs more than the same panel fixed flat to a wall.
- A 9 mm felt facing over a 20 mm BassBloc® backing reaches NRC 0.90 because of the depth behind it.
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03
Absorption is not isolationTwo different jobs
- NRC describes how much sound a surface absorbs inside a room.
- STC describes how much sound a construction blocks between rooms. A high NRC says nothing about blocking.
03 / The standards
What each test method actually measures
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ASTM C423 and EN ISO 354
Sound absorption measured in a reverberation room. Produces absorption coefficients per frequency band and the single-number NRC. Used for felt panels, foam, wood wool, slats and curtains.
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ASTM E90 and ASTM E413
Airborne sound transmission loss through a partition, measured between two rooms. E90 is the measurement, E413 converts it into the STC rating. Used for SoundBlanket® membranes and wall build-ups.
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ASTM E84
Surface burning characteristics, reported as flame spread index and smoke developed index. Frequently named in North American and Gulf project specifications.
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OEKO-TEX® Standard 100
Textile certification confirming the material has been tested for harmful substances. Relevant where fabric or felt is specified in schools, healthcare and residential interiors.
04 / The system behind it
Testing is a process here, not a one-time exercise
Manufacturing runs at the Palwal plant in Haryana under an ISO 9001:2015 quality management system.
- Third-party testing. Certified figures come from independent laboratories. The in-house lab is used for development and batch checks, never for the published certified values.
- Batch traceability. Material is tracked by batch, density and specification, so a consultant can tie what arrives on site to the batch that was tested.
- Re-testing. Long-running products are re-tested and revalidated so figures stay true to current production.
- On-site validation. Where a project needs it, we support site measurements with the consultant to correlate lab data with field performance.
Need a compliance pack for a tender?
Test reports against the standard named in your specification, fire classification, manufacturer authorisation and statutory registration documents, issued together and matched to the products actually specified.