| Issue |
Acta Acust.
Volume 10, 2026
|
|
|---|---|---|
| Article Number | 45 | |
| Number of page(s) | 16 | |
| Section | Building Acoustics | |
| DOI | https://doi.org/10.1051/aacus/2026039 | |
| Published online | 16 June 2026 | |
Scientific Article
Determination of measurement uncertainties in building acoustics by interlaboratory tests
Part 3: Impact noise levels and impact noise reduction
Physikalisch-Technische Bundesanstalt, Braunschweig, Germany
* Corresponding author: This email address is being protected from spambots. You need JavaScript enabled to view it.
Received:
23
September
2025
Accepted:
16
April
2026
Abstract
Following similar contributions on the measurement of airborne sound insulation (part 1) and absorption coefficient in reverberation rooms (part 2) this part 3 introduces a data collection on interlaboratory tests on the measurement of impact noise level and impact noise reduction. The data base comprises 1614 one-third octave band spectra in total. The data is analysed in one-third octave bands and also for single-number quantities. Typical average values are derived for the standard deviation of reproducibility, the in-situ standard deviation and the standard deviation of repeatability. The typical values are compared to the values currently standardised in ISO 12999-1 for airborne sound insulation, impact noise level and impact noise reduction to check whether their values are reasonable within the system of existing typical values. Finally, proposals for a possible revision of ISO 12999-1 are derived.
Key words: Sound insulation / Uncertainty / ISO 12999-1
© The Author(s), Published by EDP Sciences, 2026
This is an Open Access article distributed under the terms of the Creative Commons Attribution License (https://creativecommons.org/licenses/by/4.0), which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.
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