STN EN 1793-4
| Označenie: | STN EN 1793-4 |
| Platnosť: | Platná |
| Počet strán: | 52 |
| Jazyk: |
EN
|
| Listinná verzia: | 21,40€ |
| Elektronická verzia: |
a) Bez možnosti tlače, prenosu textu a obrázkov:
19,26€ b) Bez možnosti tlače, s prenosom textu a obrázkov: 21,40€ c) S možnosťou tlače, prenosu textu a obrázkov: 27,82€ |
| Slovenský názov: | Zariadenia na zníženie hluku z cestnej dopravy. Skúšobná metóda na určovanie akustických vlastností. Časť 4: Vlastné charakteristiky. Vlastná zvuková difrakcia |
| Anglický názov: | Road traffic noise reducing devices - Test method for determining the acoustic performance - Part 4: Intrinsic characteristics - Intrinsic sound diffraction |
| Dátum vydania: | 01. 04. 2026 |
| Dátum zrušenia: | |
| ICS: | 17.140.30, 93.080.30 |
| Triediaci znak: | 73 6041 |
| Úroveň zapracovania: | idt EN 1793-4:2025 |
| Vestník: | 03/26 |
| Zmeny: | |
| Nahradzujúce normy: | |
| Nahradené normy: | STN EN 1793-4:2015-08 (73 6041) |
| Poznámka vo Vestníku: | |
| Predmet normy: | This document specifies a test method for determining the intrinsic characteristics of sound diffraction of added devices installed on the top of road traffic noise reducing devices. The test method prescribes measurements of the sound pressure level at several reference points near the top edge of a road traffic noise reducing device with and without the added device installed on its top. The effectiveness of the added device is calculated as the difference between the measured values with and without the added devices, correcting for any change in height (the method specified gives the acoustic benefit over a simple barrier of the same height; however, in practice the added device can raise the height and this could provide additional screening depending on the source and receiver positions). This document is applicable to: — the preliminary qualification, outdoors or indoors, of added devices to be installed on road traffic noise reducing devices; — the determination of sound diffraction index ... |
| Náhľad normy: | Náhľad normy (PDF) |