AS ISO 717.2:2024 identically adopts ISO 717 2:2020, which provides a method whereby the frequency dependent values of impact sound insulation of building elements and in buildings (from both laboratory and field measurements) can be converted into a single number to characterize the acoustical performance
Table of contents
Header
About this publication
Preface
Foreword
Introduction
1 Scope
2 Normative references
3 Terms and definitions
4 Procedure for evaluating single-number quantities for impact sound insulation rating
4.1 General
4.2 Reference values
4.3 Method of comparison
4.3.1 Measurements in one-third-octave bands
4.3.2 Measurements in octave bands
4.4 Statement of results
4.5 Impact sound insulation measured with heavy and soft impact sources
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
5.3 Calculation
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
Annex A
A.1 General
A.2 Calculation of spectrum adaptation term
A.2.1 Spectrum adaptation term for impact sound level
A.2.2 Spectrum adaptation term for the impact sound reduction of floor coverings
A.2.3 Spectrum adaptation term for the impact sound reduction of floor coverings on lightweight floors
Annex B
B.1 General
B.2 Reference floor covering
B.3 Calculation
Annex C
Annex D
D.1 General
D.2 Single-number quantities
D.3 Calculation of the A-weighted maximum impact sound pressure level
