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BS EN ISO 717-1:2020

BS EN ISO 717-1:2020

$167.15

Acoustics. Rating of sound insulation in buildings and of building elements – Airborne sound insulation

Published By Publication Date Number of Pages
BSI 2020 36
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This document

  1. defines single-number quantities for airborne sound insulation in buildings and of building elements such as walls, floors, doors, and windows,

  2. takes into consideration the different sound level spectra of various noise sources such as noise sources inside a building and traffic outside a building, and

  3. gives rules for determining these quantities from the results of measurements carried out in one-third-octave or octave bands for example in accordance with ISO 10140-2 and ISO 16283-1 .

The single-number quantities in accordance with this document are intended for rating airborne sound insulation and for simplifying the formulation of acoustical requirements in building codes. An additional single-number evaluation in steps of 0,1 dB is indicated for the expression of uncertainty (except for spectrum adaptation terms). The required numerical values of the single-number quantities are specified according to varying needs. The single-number quantities are based on results of measurements in one-third-octave bands or octave bands.

For laboratory measurements made in accordance with ISO 10140-2, single-number quantities are calculated using one-third-octave bands only.

The rating of results of measurements carried out over an enlarged frequency range is dealt with in Annex B.

PDF Catalog

PDF Pages PDF Title
2 National foreword
4 European foreword
6 Foreword
7 Introduction
9 1 Scope
2 Normative references
10 3 Terms and definitions
4 Procedure for evaluating single-number quantities
4.1 General
12 4.2 Reference values
4.3 Sound spectra
4.4 Method of comparison
16 4.5 Calculation of spectrum adaptation terms
17 5 Statement of results
5.1 General
5.2 Statement of performance of building elements
18 5.3 Statement of requirements and of performance of buildings
19 Annex A (informative) Use of spectrum adaptation terms
21 Annex B (informative) Terms and spectra for an enlarged frequency range
24 Annex C (informative) Examples of the calculation of single-number quantities and spectrum adaptation terms
27 Annex D (normative) Single-number rating for improvement of sound reduction index by linings
29 Annex E (normative) Standard basic elements for measuring the improvement of airborne sound insulation by linings
34 Bibliography

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BS EN ISO 717-1:2020
$167.15