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BS EN ISO 717-2:2020

BS EN ISO 717-2:2020

$142.49

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

Published By Publication Date Number of Pages
BSI 2020 32
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This document

  1. defines single-number quantities for impact sound insulation in buildings and of floors,

  2. gives rules for determining these quantities from the results of measurements carried out in one-third-octave bands in accordance with ISO 10140-3 and ISO 16283-2 , and in octave bands in accordance with that option in ISO 16283-2 for field measurements only,

  3. defines single-number quantities for the impact sound reduction of floor coverings and floating floors calculated from the results of measurements carried out in accordance with ISO 10140-3 , and

  4. specifies a procedure for evaluating the weighted reduction in impact sound pressure level by floor coverings on lightweight floors.

The single-number quantities in accordance with this document are intended for rating impact 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 where it is needed for the expression of uncertainty (except for spectrum adaptation terms). Numerical values of the single-number quantities are specified where required for calculations.

The rating of measurements over an enlarged frequency range is given in Annex A.

A method for obtaining single-number quantities for bare heavy floors according to their performance in combination with floor coverings is given in Annex B.

Example calculations of single-number quantities are given in Annex C.

The rating of measurements with a heavy and soft impact source (rubber ball) is given in Annex D.

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
11 4 Procedure for evaluating single-number quantities for impact sound insulation rating
4.1 General
12 4.2 Reference values
4.3 Method of comparison
4.3.1 Measurements in one-third-octave bands
13 4.3.2 Measurements in octave bands
4.4 Statement of results
14 4.5 Impact sound insulation measured with heavy and soft impact sources
15 5 Procedure for evaluating the weighted reduction in impact sound pressure level by floor coverings on bare heavy floors
5.1 General
5.2 Reference floor
16 5.3 Calculation
17 5.4 Statement of results
6 Procedure for evaluating the weighted reduction in impact sound pressure level by floor coverings on lightweight floors
6.1 General
6.2 Reference curves for the reference lightweight floors used to calculate ΔLt,w
6.3 Calculation
6.4 Statement of results
18 Annex A (informative) Additional weighting procedure
21 Annex B (informative) Procedure for evaluating the equivalent weighted normalized impact sound pressure level of bare heavy floors
23 Annex C (informative) Examples of the evaluation of a single-number quantity
27 Annex D (normative) Rating method for impact sound insulation measured with a heavy and soft impact source
30 Bibliography

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BS EN ISO 717-2:2020
$142.49