Testing Standards
Mason acoustic products are tested in accordance with the following International Standards

ASTM E90 - 90a

Standard Test Method for Laboratory Measurement of Airborne Sound Transmission Loss of Building Partitions.
ASTM C423 - 90a
Standard Test Method for Sound Absorption and Sound Absorption Coefficients by the Reverberation Room Method.
ASTM E477 - 90a

Standard Test Method for Measuring Acoustical and Airflow Performance of Duct Liner Materials and Prefabricated Silencers.
ASTM C384 - 90a
Standard Test Method for Impedance and Absorption of Acoustical Materials by the Impedance Tube Method.
ISO 354 - 1985(E)

Acoustics - Measurement of Sound Absorption in a Reverberation Room.

ISO 140 - 1978
Acoustics - Measurement of Sound Insulation in Buildings and of Building Elements.
ISO 717/3 - 1982(E)
Acoustics - Rating of Sound Insulation in Buildings and of Building Elements.
ISO 3745 - 1977(E)
Acoustics - Determination of Sound Power Levels of Noise Sources - Precision Methods for Anechoic and Semi-anechoic Rooms.
ISO 7235

Acoustics -Laboratory Measurement of Procedures for Ducted Silencers and Air Terminal Units Insertion Loss, Flow Noise and Total Pressure Loss.
BS 2750
Acoustics. Measurement of Sound Insulation in Buildings and Building Elements.
   
  Next >>