NF EN ISO 10848-1
Acoustics - Laboratory measurement of the flanking transmission of airborne and impact sound between adjoining rooms - Part 1 : frame document
ISO 10848-1:2006 contains definitions, general requirements for test specimens and test rooms, and methods for measurement of the flanking transmission. Guidelines are given for the selection of the quantity to be measured depending on the junction and the types of building elements involved.
ISO 10848-1:2006 contains definitions, general requirements for test specimens and test rooms, and methods for measurement of the flanking transmission. Guidelines are given for the selection of the quantity to be measured depending on the junction and the types of building elements involved.
<p>ISO 10848 (all parts) specifies measurement methods to characterize the flanking transmission of one or several building components. These measurements are performed in a laboratory test facility or in the field.</p> <p>The performance of the building components is expressed either as an overall quantity for the combination of elements and junction (such as the normalized flanking level difference and/or normalized flanking impact sound pressure level) or as the vibration reduction index of a junction or the normalized direction-average vibration level difference of a junction.</p> <p>Two approaches are used for structure-borne sound sources in buildings, a normalized flanking equipment sound pressure level and a transmission function that can be used to estimate sound pressure levels in a receiving room due to structure-borne excitation by service equipment in a source room. The former approach assumes that flanking transmission is limited to one junction (or no junction if the element supporting the equipment is the separating element), and the latter considers the combination of direct (if any) and all flanking transmission paths.</p> <p>ISO 10848-1:2017 contains definitions, general requirements for test elements and test rooms, and measurement methods. Guidelines are given for the selection of the quantity to be measured, depending on the junction and the types of building elements involved. Other parts of ISO 10848 specify the application for different types of junction and building elements.</p> <p>The quantities characterizing the flanking transmission can be used to compare different products, or to express a requirement, or as input data for prediction methods, such as ISO 12354‑1 and ISO 12354‑2.</p>
- Avant-proposiv
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1 Domaine d'application1
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2 Références normatives1
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3 Termes et définitions2
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4 Grandeurs permettant de caractériser les transmissions latérales6
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4.1 Généralités6
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4.2 Isolement acoustique latéral normalisé, D,j, et niveau du bruit de choc latéral normalisé, Ln f6
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4.3 Indice d'affaiblissement vibratoire, Kij7
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4.4 Choix du principe de mesurage8
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5 Appareillage de mesure10
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6 Exigences générales relatives aux échantillons et aux salles d'essai10
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7 Méthodes de mesure11
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7.1 Mesurage de Dn,f et de Ln f11
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7.2 Mesurage de l'indice d'affaiblissement vibratoire avec excitation solidienne13
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7.3 Mesurage de la durée de réverbération structurale16
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7.4 Mesurage de l'indice d'affaiblissement vibratoire avec excitation aérienne17
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7.5 Gamme de fréquences des mesurages18
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8 Influence des structures de l'installation d'essai18
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8.1 Critère pour vérifier les transmissions latérales par les constructions de l'installation d'essai18
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8.2 Limite conventionnelle pour les éléments légers par rapport aux éléments environnants de l'installation d'essai19
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8.3 Mode opératoire de vérification pour un élément latéral léger, structurellement indépendant d'un élément de séparation19
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9 Écran de protection acoustique19
- Annexe A (normative) Évaluation de l'indice unique de l'indice d'affaiblissement vibratoire25
- Bibliographie26
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