Acoustical Porous Material Recipes


This section is a non-exhaustive list of standards by the International Organization for Standardization (ISO) related to acoustical porous materials.

ISO 3 Preferred Numbers -- Series of Preferred Numbers Read more about this standard used to defined octave, third-octave bands...
ISO 354 Acoustics -- Measurement of sound absorption in a reverberation room
ISO 717 series Acoustics -- Rating of sound insulation in buildings and of building elements
ISO 4590 Rigid cellular plastics -- Determination of the volume percentage of open cells and of closed cells Not consistent for acoustical porous media with open porosities close to 1
ISO 6721 series Plastics -- Determination of dynamic mechanical properties Limited to elastic properties and moduli
ISO 9052-1:1989 Acoustics -- Determination of dynamic stiffness -- Part 1: Materials used under floating floors in dwellings Multiple requests to revise this standard.
No other parts than -1.
ISO 9053-1:2018 Acoustics -- Materials for acoustical applications -- Determination of airflow resistance -- Part 1: static method Used to be ISO 9053, method A.
A new information appendix introduced the estimation from impedance tube measurements.
ISO 9237 Textiles -- Determination of the permeability of fabrics to air Imposed pressure drops imply velocities 2 orders of magnitude higher than ISO 9053.
This method thus cannot be compared to ISO 9053 and is not recommend for acoustical materials.
ISO 10140 series Acoustics -- Laboratory measurement of sound insulation of building elements
ISO 10534 series Acoustics -- Determination of sound absorption coefficient and impedance in impedance tubes -2 currently in revision,
-3 and -4 are being created.
ISO 11654 Acoustics -- Sound absorbers for use in buildings -- Rating of sound absorption Note that other ratings are used in ASTM standards, in particular ASTM C423 introducing the SAA (Sound Absorption Average) which replaces the obsolete NRC (Noise Reduction Coefficient)
ISO 13472 series Acoustics -- Measurement of sound absorption properties of road surfaces in situ
ISO 18437 series Mechanical vibration and shock -- Characterization of the dynamic mechanical properties of visco-elastic materials Limited to elastic properties. Part 5 is dedicated to "Poisson ratio based on comparison between measurements and finite element analysis"

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