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sklademVydáno: 2020-07-16
BS EN ISO 12999-2:2020
Acoustics. Determination and application of measurement uncertainties in building acoustics Sound absorption
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| Označení normy: | BS EN ISO 12999-2:2020 |
| Počet stran: | 16 |
| Vydáno: | 2020-07-16 |
| ISBN: | 978 0 539 02356 5 |
| Status: | Standard |
DESCRIPTION
BS EN ISO 12999-2:2020
This standard BS EN ISO 12999-2:2020 Acoustics. Determination and application of measurement uncertainties in building acoustics is classified in these ICS categories:
- 91.120.20 Acoustics in building. Sound insulation
- 17.140.01 Acoustic measurements and noise abatement in general
This document specifies how to calculate:
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the uncertainty of sound absorption coefficients and equivalent sound absorption areas measured according to ISO 354 ;
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the uncertainty of the practical and weighted sound absorption coefficients determined according to ISO 11654 ;
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the uncertainty of the object sound absorption coefficient according to ISO 20189 ; and
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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.