STN EN ISO 10534-2
| Označenie: | STN EN ISO 10534-2 |
| Platnosť: | Platná |
| Počet strán: | 40 |
| Jazyk: |
EN
|
| Listinná verzia: | 18,90€ |
| Elektronická verzia: |
a) Bez možnosti tlače, prenosu textu a obrázkov:
17,01€ b) Bez možnosti tlače, s prenosom textu a obrázkov: 18,90€ c) S možnosťou tlače, prenosu textu a obrázkov: 24,57€ |
| Slovenský názov: | Akustika. Stanovenie vlastností impedančných trubíc. Časť 2: Metóda dvoch mikrofónov pre priemerný koeficient absorpcie zvuku a priemernú povrchovú impedanciu (ISO 10534-2: 2023, opravená verzia 2025-08) |
| Anglický názov: | Acoustics - Determination of acoustic properties in impedance tubes - Part 2: Two-microphone technique for normal sound absorption coefficient and normal surface impedance (ISO 10534-2:2023, Corrected version 2025-08) |
| Dátum vydania: | 01. 03. 2026 |
| Dátum zrušenia: | |
| ICS: | 17.140.01 |
| Triediaci znak: | 73 0537 |
| Úroveň zapracovania: | idt EN ISO 10534-2:2023, idt ISO 10534-2 Corrected version 2025-08:2023 |
| Vestník: | 02/26 |
| Zmeny: | |
| Nahradzujúce normy: | |
| Nahradené normy: | STN EN ISO 10534-2:2024-01 (73 0537) |
| Poznámka vo Vestníku: | |
| Predmet normy: | This test method covers the use of an impedance tube, two microphone locations and a digital frequency analysis system for the determination of the sound absorption coefficient of sound absorbers for normal sound incidence. It can also be applied for the determination of the acoustical surface impedance or surface admittance of sound absorbing materials. Since the impedance ratios of a sound absorptive material are related to its physical properties, such as airflow resistance, porosity, elasticity and density, measurements described in this test method are useful in basic research and product development. The test method is similar to the test method specified in ISO 10534-1 in that it uses an impedance tube with a sound source connected to one end and the test sample mounted in the tube at the other end. However, the measurement technique is different. In this test method, plane waves are generated in a tube by a noise source, and the decomposition of the interference field is achieved by the ... |
| Náhľad normy: | Náhľad normy (PDF) |