JIS A 1405-1:2007
Acoustics -- Determination of sound absorption coefficient and impedance in impedance tubes -- Part 1: Method using standing wave ratio
- Standard No.
- JIS A 1405-1:2007
- Release Date
- 2007
- Published By
- Japanese Industrial Standards Committee (JISC)
- Latest
- JIS A 1405-1:2007
- Replace
- JIS A 1405:1998
- Scope
- This standard specifies methods for calculating the sound absorption coefficient, sound pressure reflectance, and surface normal incidence acoustic impedance or surface normal incidence acoustic admittance of a material or object. This value is calculated for normal incidence by measuring the standing wave pattern of the pipe plane wave, which is generated by the combination of the incident sinusoidal plane wave and the plane wave reflected from the specimen.
JIS A 1405-1:2007 Referenced Document
- ISO 266 Acoustics - Preferred frequencies
- JIS A 1409 Method for measurement of sound absorption coefficients in a reverberation room
JIS A 1405-1:2007 history
- 2007 JIS A 1405-1:2007 Acoustics -- Determination of sound absorption coefficient and impedance in impedance tubes -- Part 1: Method using standing wave ratio
- 1998 JIS A 1405:1998 Acoustics -- Determination of sound absorption coefficient and impedance in impedance tubes -- Method using standing wave ratio
- 1994 JIS A 1405:1994 Methods of test for sound absorption of acoustical materials by the tube method
