ISO 12999-2
Acoustics — Determination and application of measurement uncertainties in building acoustics — Part 2: Sound absorption
Organization: | ISO |
Publication Date: | 1 June 2020 |
Status: | active |
Page Count: | 16 |
ICS Code (Acoustics in building. Sound insulation): | 91.120.20 |
ICS Code (Acoustic measurements and noise abatement in general): | 17.140.01 |
scope:
This document specifies how to calculate:
- the uncertainty of sound absorption coefficients and equivalent sound absorption areas measured according to ISO 354;
- the uncertainty of the practical and weighted sound absorption coefficients determined according to ISO 11654;
- the uncertainty of the object sound absorption coefficient according to ISO 20189; and
- the uncertainty of the single number rating determined according to EN 1793-1.
Furthermore, the use of uncertainties in reporting measured or weighted sound absorption coefficients is explained.