ISO 1683:2015 specifies reference values used in acoustics, in order to establish a uniform basis for the expression of acoustical and vibratory levels.The reference values are mandatory for use in acoustics for sounds in air and other gases, sounds in water and other liquids, and for structure-borne sound, but can also be used in other applications.
ISO 1683:2015 Plus Redline history
2015ISO 1683:2015 Acoustics - Preferred reference values for acoustical and vibratory levels
2008ISO 1683:2008 Acoustics - Preferred reference values for acoustical and vibratory levels
1983ISO 1683:1983 Acoustics; Preferred reference quantities for acoustic levels