SS-ISO 13472-2:2025 Acústica — Medición de las propiedades de absorción de sonido de superficies viales in situ — Parte 2: Método puntual para superficies reflectantes (ISO 13472-2:2024, IDT)
This document specifies a test method for measuring in situ the sound absorption coefficient of road surfaces for the one-third-octave band frequencies ranging from 250 Hz to 1 600 Hz under normal incidence conditions. If necessary for practical applications the diameter of the tube can be reduced to 80 mm. This will increase the upper boundary of the frequency range to 2 000 Hz one-third-octave band (see 5.4) but reduces the area under test. The test method is intended for the following applications: — determination of the sound absorption coefficient (and, if of interest, also the complex acoustical impedance) of semi-dense to dense road surfaces; — determination of the sound absorption properties of test tracks according to ISO 10844[2] or other similar standards and test surfaces defined in national and international type approval regulations for road vehicles and their tyres; — verification of the compliance of the sound absorption coefficient of a road surface with designspecifications or other requirements.
SS-ISO 13472-2:2025 Historia
1970SS-ISO 13472-2:2025 Acústica — Medición de las propiedades de absorción de sonido de superficies viales in situ — Parte 2: Método puntual para superficies reflectantes (ISO 13472-2:2024, IDT)
2011SS-ISO 13472-2:2011 Acústica - Medición de las propiedades de absorción acústica de las superficies de las carreteras in situ - Parte 2: Método puntual para superficies reflectantes (ISO 13472-2:2010, IDT)