Testing the acoustic properties of materials

We provide the following services:

  • determination of the sound absorption coefficient in an impedance tube, reverberation room and a small Alpha cabin,
  • determination of acoustic insulation (TL) in an impedance tube and joined chambers via the intensity method,
  • measurements of other parameters such as acoustic impedance, coefficient of reflection, etc.


  • ISO 10534-2
  • ASTM E1050
  • ISO 11654
  • ASTM E2611
  • ISO 15186-1
  • ISO 354
  • ASTM C423
  • Fiat 7.R7401
  • Fiat 7.R0146
  • FCA LP.7R065*
*Customer to provide norms for testing
Document No. Title/Description
ISO 10534-2 Acoustics -- Determination of sound absorption coefficient and impedance in impedance tubes -- Part 2: Transfer-function method
ASTM E1050 Standard Test Method for Impedance and Absorption of Acoustical Materials Using a Tube, Two Microphones and a Digital Frequency Analysis System
ISO 11654 Acoustics -- Sound absorbers for use in buildings -- Rating of sound absorption
ASTM E2611 Standard Test Method for Measurement of Normal Incidence Sound Transmission of Acoustical Materials Based on the Transfer Matrix Method
ISO 15186-1 Acoustics - Measurement of sound insulation in buildings and of building elements using sound intensity - Part 1: Laboratory measurements
ISO 354 Acoustics - Measurement of sound absorption in a reverberation room
ASTM C423 Standard Test Method for Sound Absorption and Sound Absorption Coefficients by the Reverberation Room Method
Fiat 7.R7401 Fiat 7.R7401
Fiat 7.R0146 Fiat 7.R0146
FCA LP.7R065 FCA LP.7R065