SIST EN ISO 717-2:2013
(Main)Acoustics - Rating of sound insulation in buildings and of building elements - Part 2: Impact sound insulation (ISO 717-2:2013)
Acoustics - Rating of sound insulation in buildings and of building elements - Part 2: Impact sound insulation (ISO 717-2:2013)
This part of ISO 717:
a) defines single-number quantities for impact sound insulation in buildings and of floors;
b) gives rules for determining these quantities from the results of measurements carried out in onethird- octave bands in accordance with ISO 10140-3 and ISO 140-7, and in octave bands in accordance with that option in ISO 140-7 for field measurements only;
c) 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;
d) 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 part of ISO 717 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 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 rating of results from measurements carried out over an enlarged frequency range is described in Annex A. A method for obtaining single-number quantities for bare heavy floors according to their performance in combination with floor coverings is described in Annex B. An example of the calculation of a single-number quantity is given in Annex C.
Akustik - Bewertung der Schalldämmung in Gebäuden und von Bauteilen - Teil 2: Trittschalldämmung (ISO 717-2:2013)
Dieser Teil von ISO 717
a) legt Einzahlangaben für die Trittschalldämmung in Gebäuden und von Decken fest;
b) enthält Regeln für die Ermittlung dieser Einzahlangaben aus den Ergebnissen von Messungen in Terzbändern nach ISO 10140 3 und ISO 140 7 und in Oktavbändern entsprechend der zutreffenden Option in ISO 140 7 für ausschließlich Messungen in Gebäuden;
c) legt Einzahlangaben für die Trittschallminderung durch Deckenauflagen und schwimmende Estriche fest, die aus den Ergebnissen von Messungen nach ISO 10140-3 berechnet wurden;
d) legt ein Verfahren zur Ermittlung der bewerteten Trittschallpegelminderung durch Deckenauflagen auf leichten Decken fest.
Die Einzahlangaben nach diesem Teil von ISO 717 sind für die Bewertung der Trittschalldämmung und für die Vereinfachung der Formulierung von akustischen Anforderungen in Bauvorschriften vorgesehen. Zum Zwecke der Angabe der Unsicherheit ist die Ermittlung einer zusätzlichen Einzahlangabe in 1/10-dB-Schritten enthalten (ausgenommen sind die Spektrum Anpassungswerte). Die erforderlichen numerischen Werte dieser Einzahlangaben werden für verschiedene Bedürfnisse festgelegt.
Die Bewertung der Ergebnisse von Messungen über einen erweiterten Frequenzbereich wird in Anhang A behandelt.
Ein Verfahren zur Bestimmung von Einzahlangaben für massive Rohdecken entsprechend ihrer Leistung in Kombination mit Deckenauflagen wird in Anhang B beschrieben.
Ein Beispiel für die Berechnung einer Einzahlangabe ist in Anhang C angegeben.
Acoustique - Évaluation de l'isolement acoustique des immeubles et des éléments de construction - Partie 2: Protection contre le bruit de choc (ISO 717-2:2013)
L'ISO 717-2:2013
a) définit des valeurs uniques de l'isolement acoustique des immeubles et des planchers au bruit de choc,
b) spécifie des règles de détermination de ces valeurs d'après les résultats de mesurages effectués dans des bandes de fréquences de tiers d'octave conformément à l'ISO 10140‑3 et à l'ISO 140‑7, et dans des bandes de fréquences d'octave conformément à l'ISO 140‑7 pour des mesurages sur site seulement, et
c) définit des valeurs uniques de la réduction du bruit de choc par les revêtements de sol et les planchers flottants calculées d'après les résultats de mesurages effectués conformément à l'ISO 10140‑3, et
d) spécifie un mode opératoire d'évaluation de la réduction du niveau du bruit de choc pondéré par les revêtements de sol sur des planchers légers.
Les valeurs uniques spécifiées dans l'ISO 717-2:2013 sont destinées à indiquer la qualité de l'isolement acoustique aux bruits de choc et à faciliter l'énoncé des exigences en matière d'acoustique dans les règles techniques de la construction. Une évaluation unique complémentaire par pas de 0,1 dB est indiquée pour exprimer l'incertitude (sauf pour les termes d'adaptation à un spectre). Les valeurs numériques requises pour ces valeurs uniques sont spécifiées suivant les besoins.
L'évaluation des résultats des mesurages effectués dans une gamme étendue de fréquences est abordée dans une annexe.
Un procédé d'obtention des valeurs uniques pour les planchers nus lourds, selon leur performance acoustique lorsqu'ils sont revêtus de revêtement de sol, est décrit dans une seconde annexe.
Un exemple de calcul de valeur unique est donné dans une troisième annexe.
Akustika - Vrednotenje zvočne izolirnosti v stavbah in zvočne izolirnosti gradbenih elementov - 2. del: Izolirnost pred udarnim zvokom (ISO 717-2:2013)
Ta del standarda ISO 717:
a) določa enoštevilčne vrednosti za izolirnost pred udarnim zvokom v stavbah in tleh;
b) določa pravila za opredeljevanje teh količin na podlagi rezultatov meritev, opravljenih v pasovih ene tretjine oktave v skladu s standardoma ISO 10140-3 in ISO 140-7 ter v oktavnih pasovih v skladu s to možnostjo v standardu ISO 140-7 samo za terenske meritve;
c) določa enoštevilčne vrednosti za znižanje ravni udarnega zvoka talnih oblog in plavajočih podov, izračunane na podlagi rezultatov meritev, opravljenih v skladu s standardom ISO 10140-3;
d) opredeljuje postopek za ocenjevanje ovrednotenega znižanja ravni zvočnega tlaka udarnega zvoka s talnimi oblogami na lahkih tleh. Enoštevilčne vrednosti v skladu s tem delom standarda ISO 717 so namenjene vrednotenju izolirnosti pred udarnim zvokom in poenostavitvi oblikovanja akustičnih zahtev v gradbenih predpisih. Dodatna ocena enoštevilčne vrednosti v korakih po 0,1 dB je navedena za izražanje merilne negotovosti (razen faktorjev prilagoditve spektra). Zahtevane številske vrednosti enoštevilčnih veličin so opredeljene glede na različne potrebe. Vrednotenje rezultatov meritev, opravljenih v večjem frekvenčnem obsegu, je obravnavano v dodatku A. Metoda pridobivanja enoštevilčnih vrednosti za gola težka tla v skladu z njihovimi lastnostmi skupaj s talnimi oblogami je opisana v dodatku B. Primer izračuna enoštevilčne vrednosti je naveden v dodatku C.
General Information
Relations
Standards Content (Sample)
SLOVENSKI STANDARD
SIST EN ISO 717-2:2013
01-maj-2013
1DGRPHãþD
SIST EN ISO 717-2:1997
SIST EN ISO 717-2:1997/A1:2006
$NXVWLND9UHGQRWHQMH]YRþQHL]ROLUQRVWLYVWDYEDKLQ]YRþQHL]ROLUQRVWLJUDGEHQLK
HOHPHQWRYGHO ,]ROLUQRVWSUHGXGDUQLP]YRNRP ,62
Acoustics - Rating of sound insulation in buildings and of building elements - Part 2:
Impact sound insulation (ISO 717-2:2013)
Akustik - Bewertung der Schalldämmung in Gebäuden und von Bauteilen - Teil 2:
Trittschalldämmung (ISO 717-2:2013)
Acoustique - Évaluation de l'isolement acoustique des immeubles et des éléments de
construction - Partie 2: Protection contre le bruit de choc (ISO 717-2:2013)
Ta slovenski standard je istoveten z: EN ISO 717-2:2013
ICS:
91.120.20 $NXVWLNDYVWDYEDK=YRþQD Acoustics in building. Sound
L]RODFLMD insulation
SIST EN ISO 717-2:2013 en
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.
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SIST EN ISO 717-2:2013
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SIST EN ISO 717-2:2013
EUROPEAN STANDARD
EN ISO 717-2
NORME EUROPÉENNE
EUROPÄISCHE NORM
March 2013
ICS 91.120.20 Supersedes EN ISO 717-2:1996
English Version
Acoustics - Rating of sound insulation in buildings and of
building elements - Part 2: Impact sound insulation (ISO 717-
2:2013)
Acoustique - Évaluation de l'isolement acoustique des Akustik - Bewertung der Schalldämmung in Gebäuden und
immeubles et des éléments de construction - Partie 2: von Bauteilen - Teil 2: Trittschalldämmung (ISO 717-
Protection contre le bruit de choc (ISO 717-2:2013) 2:2013)
This European Standard was approved by CEN on 5 January 2013.
CEN members are bound to comply with the CEN/CENELEC Internal Regulations which stipulate the conditions for giving this European
Standard the status of a national standard without any alteration. Up-to-date lists and bibliographical references concerning such national
standards may be obtained on application to the CEN-CENELEC Management Centre or to any CEN member.
This European Standard exists in three official versions (English, French, German). A version in any other language made by translation
under the responsibility of a CEN member into its own language and notified to the CEN-CENELEC Management Centre has the same
status as the official versions.
CEN members are the national standards bodies of Austria, Belgium, Bulgaria, Croatia, Cyprus, Czech Republic, Denmark, Estonia,
Finland, Former Yugoslav Republic of Macedonia, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania,
Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Romania, Slovakia, Slovenia, Spain, Sweden, Switzerland, Turkey and United
Kingdom.
EUROPEAN COMMITTEE FOR STANDARDIZATION
COMITÉ EUROPÉEN DE NORMALISATION
EUROPÄISCHES KOMITEE FÜR NORMUNG
Management Centre: Avenue Marnix 17, B-1000 Brussels
© 2013 CEN All rights of exploitation in any form and by any means reserved Ref. No. EN ISO 717-2:2013: E
worldwide for CEN national Members.
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SIST EN ISO 717-2:2013
EN ISO 717-2:2013 (E)
Contents Page
Foreword .3
2
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SIST EN ISO 717-2:2013
EN ISO 717-2:2013 (E)
Foreword
This document (EN ISO 717-2:2013) has been prepared by Technical Committee ISO/TC 43 “Acoustics” in
collaboration with Technical Committee CEN/TC 126 “Acoustic properties of building elements and of
buildings” the secretariat of which is held by AFNOR.
This European Standard shall be given the status of a national standard, either by publication of an identical
text or by endorsement, at the latest by September 2013, and conflicting national standards shall be
withdrawn at the latest by September 2013.
Attention is drawn to the possibility that some of the elements of this document may be the subject of patent
rights. CEN [and/or CENELEC] shall not be held responsible for identifying any or all such patent rights.
This document supersedes EN ISO 717-2:1996.
According to the CEN-CENELEC Internal Regulations, the national standards organizations of the following
countries are bound to implement this European Standard: Austria, Belgium, Bulgaria, Croatia, Cyprus, Czech
Republic, Denmark, Estonia, Finland, Former Yugoslav Republic of Macedonia, France, Germany, Greece,
Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal,
Romania, Slovakia, Slovenia, Spain, Sweden, Switzerland, Turkey and the United Kingdom.
Endorsement notice
The text of ISO 717-2:2013 has been approved by CEN as EN ISO 717-2:2013 without any modification.
3
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SIST EN ISO 717-2:2013
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SIST EN ISO 717-2:2013
INTERNATIONAL ISO
STANDARD 717-2
Third edition
2013-03-01
Acoustics — Rating of sound insulation
in buildings and of building elements —
Part 2:
Impact sound insulation
Acoustique — Évaluation de l’isolement acoustique des immeubles et
des éléments de construction —
Partie 2: Protection contre le bruit de choc
Reference number
ISO 717-2:2013(E)
©
ISO 2013
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SIST EN ISO 717-2:2013
ISO 717-2:2013(E)
COPYRIGHT PROTECTED DOCUMENT
© ISO 2013
All rights reserved. Unless otherwise specified, no part of this publication may be reproduced or utilized otherwise in any form
or by any means, electronic or mechanical, including photocopying, or posting on the internet or an intranet, without prior
written permission. Permission can be requested from either ISO at the address below or ISO’s member body in the country of
the requester.
ISO copyright office
Case postale 56 • CH-1211 Geneva 20
Tel. + 41 22 749 01 11
Fax + 41 22 749 09 47
E-mail copyright@iso.org
Web www.iso.org
Published in Switzerland
ii © ISO 2013 – All rights reserved
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SIST EN ISO 717-2:2013
ISO 717-2:2013(E)
Contents Page
Foreword .iv
Introduction .v
1 Scope . 1
2 Normative references . 1
3 Terms and definitions . 2
4 Procedure for evaluating single-number quantities for impact sound insulation rating .3
4.1 General . 3
4.2 Reference values . 3
4.3 Method of comparison . 3
4.4 Statement of results . 4
5 Procedure for evaluating the weighted reduction in impact sound pressure level by floor
coverings on bare heavy floors . 5
5.1 General . 5
5.2 Reference floor . 6
5.3 Calculation . 6
5.4 Statement of results . 7
6 Procedure for evaluating the weighted reduction in impact sound pressure level by floor
coverings on lightweight floors . 7
6.1 General . 7
6.2 Reference curves for the reference lightweight floors used to calculate ΔL .
t,w 8
6.3 Calculation . 8
6.4 Statement of results . 8
Annex A (informative) Additional weighting procedure . 9
Annex B (informative) Procedure for evaluating the equivalent weighted normalized impact
sound pressure level of bare heavy floors .11
Annex C (informative) Examples of the evaluation of a single-number quantity .13
Bibliography .17
© ISO 2013 – All rights reserved iii
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SIST EN ISO 717-2:2013
ISO 717-2:2013(E)
Foreword
ISO (the International Organization for Standardization) is a worldwide federation of national standards
bodies (ISO member bodies). The work of preparing International Standards is normally carried out
through ISO technical committees. Each member body interested in a subject for which a technical
committee has been established has the right to be represented on that committee. International
organizations, governmental and non-governmental, in liaison with ISO, also take part in the work.
ISO collaborates closely with the International Electrotechnical Commission (IEC) on all matters of
electrotechnical standardization.
International Standards are drafted in accordance with the rules given in the ISO/IEC Directives, Part 2.
The main task of technical committees is to prepare International Standards. Draft International
Standards adopted by the technical committees are circulated to the member bodies for voting.
Publication as an International Standard requires approval by at least 75 % of the member bodies
casting a vote.
Attention is drawn to the possibility that some of the elements of this document may be the subject of
patent rights. ISO shall not be held responsible for identifying any or all such patent rights.
ISO 717-2 was prepared by Technical Committee ISO/TC 43, Acoustics, Subcommittee SC 2, Building acoustics.
This third edition cancels and replaces the second edition (ISO 717-2:1996), which has been technically
revised. It also incorporates the Amendment ISO 717-2:1996/Amd. 1:2006.
The purpose of this revised version is to:
— allow weighting steps of 0,1 dB to be used for expression of uncertainty;
— update references.
ISO 717 consists of the following parts, under the general title Acoustics — Rating of sound insulation in
buildings and of building elements:
— Part 1: Airborne sound insulation
— Part 2: Impact sound insulation
iv © ISO 2013 – All rights reserved
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SIST EN ISO 717-2:2013
ISO 717-2:2013(E)
Introduction
Methods of measurement of impact sound insulation in buildings and of building elements have been
standardized in ISO 10140-3 and ISO 140-7. These methods give values for the impact sound insulation
which are frequency dependent. The purpose of this part of ISO 717 is to standardize a method whereby
the frequency-dependent values of impact sound insulation can be converted into a single number
characterizing the acoustical performance.
The method has been widely used since 1968. However, since there is some evidence that it could be improved,
a spectrum adaptation term is added and it is recommended that experience be gathered with this.
References to standards which provide data for single-number evaluation are meant to be examples and
not complete surveys.
© ISO 2013 – All rights reserved v
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SIST EN ISO 717-2:2013
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SIST EN ISO 717-2:2013
INTERNATIONAL STANDARD ISO 717-2:2013(E)
Acoustics — Rating of sound insulation in buildings and of
building elements —
Part 2:
Impact sound insulation
1 Scope
This part of ISO 717:
a) defines single-number quantities for impact sound insulation in buildings and of floors;
b) 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 140-7, and in octave bands in accord-
ance with that option in ISO 140-7 for field measurements only;
c) 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;
d) 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 part of ISO 717 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 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 rating of results from measurements carried out over an enlarged frequency range is described
in Annex A.
A method for obtaining single-number quantities for bare heavy floors according to their performance
in combination with floor coverings is described in Annex B.
An example of the calculation of a single-number quantity is given in Annex C.
2 Normative references
The following documents, in whole or in part, are normatively referenced in this document and are
indispensable for its application. For dated references, only the edition cited applies. For undated
references, the latest edition of the referenced document (including any amendments) applies.
ISO 140-7:1998, Acoustics — Measurement of sound insulation in buildings and of building elements —
Part 7: Field measurements of impact sound insulation of floors
ISO 10140-1, Acoustics — Laboratory measurement of sound insulation of building elements — Part 1:
Application rules for specific products
ISO 10140-3:2010, Acoustics — Laboratory measurement of sound insulation of building elements — Part 3:
Measurement of impact sound insulation
ISO 10140-5, Acoustics — Laboratory measurement of sound insulation of building elements — Part 5:
Requirements for test facilities and equipment
© ISO 2013 – All rights reserved 1
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SIST EN ISO 717-2:2013
ISO 717-2:2013(E)
3 Terms and definitions
For the purposes of this document, the following terms and definitions apply.
3.1
single-number quantity for impact sound insulation rating derived from one-third-octave
band measurements
value of the relevant reference curve at 500 Hz after shifting it in accordance with the method specified
in this part of ISO 717
Note 1 to entry: This quantity is expressed in decibels.
3.2
single-number quantity for impact sound insulation rating derived from octave band measurements
value of the relevant reference curve at 500 Hz after shifting it in accordance with the method specified
in this part of ISO 717, reduced by 5 dB
Note 1 to entry: Terms and symbols for the single-number quantity used depend on the type of measurement.
Examples are listed in Table 1 for impact sound insulation properties of building elements and in Table 2 for
impact sound insulation between rooms in buildings.
Note 2 to entry: In order to distinguish clearly between values with and without flanking transmission, primed
′
symbols (e.g. L ) are used to denote values obtained with flanking transmission.
n
Note 3 to entry: This quantity is expressed in decibels.
3.3
weighted reduction in impact sound pressure level
difference between the weighted normalized impact sound pressure levels derived with a bare heavy
reference floor or with a lightweight reference floor without and with a floor covering, obtained in
accordance with the method specified in this part of ISO 717
Note 1 to entry: The quantity derived with a bare heavy reference floor is denoted by ΔL and is expressed in decibels.
w
Note 2 to entry: The quantity derived with a bare heavy reference floor is denoted by ΔL and is expressed in
t,w
decibels. According to the type of reference floor it may be denoted by ΔL , ΔL , ΔL .
t1,w t2,w t3,w
3.4
spectrum adaptation term
C
I
value, in decibels, to be added to the single-number quantity to take account of the unweighted impact
sound level, thereby representing the characteristics of typical walking noise spectra
3.5
equivalent weighted normalized impact sound pressure level of a bare heavy floor
sum of the weighted normalized impact sound pressure level of the bare floor under test with the
reference floor covering and the weighted reduction in impact sound pressure level of the reference
floor covering obtained in accordance with the method specified in this part of ISO 717
Note 1 to entry: This quantity is denoted by L and is expressed in decibels.
n,eq,0,w
Table 1 — Single-number quantities of impact sound insulation properties of floors
Derived from one-third-octave band values
Defined in
Single-number quantity Term and symbol
Weighted normalized impact Normalized impact sound pres-
ISO 10140-3:2010 Formula (1)
sound pressure level, L sure level, L
n,w n
2 © ISO 2013 – All rights reserved
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SIST EN ISO 717-2:2013
ISO 717-2:2013(E)
Table 2 — Single-number quantities of impact sound insulation between rooms in buildings
Derived from one-third-octave band values or octave-band
values
Defined in
Single-number quantity Term and symbol
Weighted normalized impact Normalized impact sound
′ ′ ISO 140-7:1998 Formula (2)
sound pressure level, L pressure level, L
n,w n
Weighted standardized impact Standardized impact sound
′ ′
ISO 140-7:1998 Formula (3)
sound pressure level, L pressure level, L
n,T w nT
4 Procedure for evaluating single-number quantities for impact sound
insulation rating
4.1 General
The values obtained in accordance with ISO 10140-3 and ISO 140-7 are compared with reference values
(see 4.2) at the frequencies of measurement within the range 100 Hz to 3 150 Hz for measurements in
one-third-octave bands or 125 Hz to 2 000 Hz for measurements in octave bands.
The comparison shall be carried out in accordance with 4.3.
4.2 Reference values
The set of reference values used for comparison with measurement results shall be as given in Table 3.
The reference curves are shown in Figures 1 and 2.
NOTE The reference values for the octave bands 125 Hz to 1 000 Hz are equivalent to the energetic sum
(rounded to integers) of these for the relevant one-third-octave band values. The reference value for the octave
band 2 000 Hz has been reduced to take care of the one-third-octave band 3 150 Hz, which (for bare heavy floors)
may contribute considerably to the unfavourable deviations.
4.3 Method of comparison
4.3.1 Measurements in one-third-octave bands
′ ′
To evaluate the results of a measurement of L , L or L in one-third-octave bands, the measurement
n
n nT
1)
data shall be given to one decimal place. Shift the reference curve in increments of 1 dB (0,1 dB for the
purpose of expression of uncertainty) towards the measured curve until the sum of unfavourable
deviations is as large as possible but not more than 32,0 dB.
An unfavourable deviation at a particular frequency occurs when the results of measurements exceed
the reference value. Only the unfavourable deviations shall be taken into account.
The value, in decibels, of the reference curve at 500 Hz, after shifting it in accordance with this procedure,
′ ′
is L
...
SLOVENSKI STANDARD
oSIST prEN ISO 717-2:2011
01-september-2011
$NXVWLND9UHGQRWHQMH]YRþQHL]ROLUQRVWLY]JUDGEDKLQ]YRþQHL]ROLUQRVWL
JUDGEHQLKHOHPHQWRYGHO ,]ROLUQRVWSUHGXGDUQLP]YRNRP ,62',6
Acoustics - Rating of sound insulation in buildings and of building elements - Part 2:
Impact sound insulation (ISO/DIS 717-2:2011)
Akustik - Bewertung der Schalldämmung in Gebäuden und von Bauteilen - Teil 2:
Trittschalldämmung (ISO/DIS 717-2:2011)
Acoustique - Évaluation de l'isolement acoustique des immeubles et des éléments de
construction - Partie 2: Protection contre le bruit de choc (ISO/DIS 717-2:2011)
Ta slovenski standard je istoveten z: prEN ISO 717-2
ICS:
91.120.20 $NXVWLNDYVWDYEDK=YRþQD Acoustics in building. Sound
L]RODFLMD insulation
oSIST prEN ISO 717-2:2011 en
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.
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oSIST prEN ISO 717-2:2011
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oSIST prEN ISO 717-2:2011
EUROPEAN STANDARD
DRAFT
prEN ISO 717-2
NORME EUROPÉENNE
EUROPÄISCHE NORM
June 2011
ICS 91.120.20 Will supersede EN ISO 717-2:1996
English Version
Acoustics - Rating of sound insulation in buildings and of
building elements - Part 2: Impact sound insulation (ISO/DIS
717-2:2011)
Acoustique - Évaluation de l'isolement acoustique des Akustik - Bewertung der Schalldämmung in Gebäuden und
immeubles et des éléments de construction - Partie 2: von Bauteilen - Teil 2: Trittschalldämmung (ISO/DIS 717-
Protection contre le bruit de choc (ISO/DIS 717-2:2011) 2:2011)
This draft European Standard is submitted to CEN members for parallel enquiry. It has been drawn up by the Technical Committee
CEN/TC 126.
If this draft becomes a European Standard, CEN members are bound to comply with the CEN/CENELEC Internal Regulations which
stipulate the conditions for giving this European Standard the status of a national standard without any alteration.
This draft European Standard was established by CEN in three official versions (English, French, German). A version in any other language
made by translation under the responsibility of a CEN member into its own language and notified to the CEN-CENELEC Management
Centre has the same status as the official versions.
CEN members are the national standards bodies of Austria, Belgium, Bulgaria, Croatia, Cyprus, Czech Republic, Denmark, Estonia,
Finland, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland,
Portugal, Romania, Slovakia, Slovenia, Spain, Sweden, Switzerland and United Kingdom.
Recipients of this draft are invited to submit, with their comments, notification of any relevant patent rights of which they are aware and to
provide supporting documentation.
Warning : This document is not a European Standard. It is distributed for review and comments. It is subject to change without notice and
shall not be referred to as a European Standard.
EUROPEAN COMMITTEE FOR STANDARDIZATION
COMITÉ EUROPÉEN DE NORMALISATION
EUROPÄISCHES KOMITEE FÜR NORMUNG
Management Centre: Avenue Marnix 17, B-1000 Brussels
© 2011 CEN All rights of exploitation in any form and by any means reserved Ref. No. prEN ISO 717-2:2011: E
worldwide for CEN national Members.
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oSIST prEN ISO 717-2:2011
prEN ISO 717-2:2011 (E)
Contents Page
Foreword .3
2
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oSIST prEN ISO 717-2:2011
prEN ISO 717-2:2011 (E)
Foreword
This document (prEN ISO 717-2:2011) has been prepared by Technical Committee ISO/TC 43 "Acoustics" in
collaboration with Technical Committee CEN/TC 126 “Acoustic properties of building elements and of
buildings” the secretariat of which is held by AFNOR.
This document is currently submitted to the parallel Enquiry.
This document will supersede EN ISO 717-2:1996.
Endorsement notice
The text of ISO/DIS 717-2:2011 has been approved by CEN as a prEN ISO 717-2:2011 without any
modification.
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oSIST prEN ISO 717-2:2011
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oSIST prEN ISO 717-2:2011
DRAFT INTERNATIONAL STANDARD ISO/DIS 717-2
ISO/TC 43/SC 2 Secretariat: DIN
Voting begins on Voting terminates on
2011-06-09 2011-11-09
INTERNATIONAL ORGANIZATION FOR STANDARDIZATION • МЕЖДУНАРОДНАЯ ОРГАНИЗАЦИЯ ПО СТАНДАРТИЗАЦИИ • ORGANISATION INTERNATIONALE DE NORMALISATION
Acoustics — Rating of sound insulation in buildings and of
building elements —
Part 2:
Impact sound insulation
Acoustique — Évaluation de l'isolement acoustique des immeubles et des éléments de construction —
Partie 2: Protection contre le bruit de choc
[Revision of second edition (ISO 717-2:1996) and ISO 717-2:1996/Amd.1:2006]
ICS 91.120.20
ISO/CEN PARALLEL PROCESSING
This draft has been developed within the International Organization for Standardization (ISO), and
processed under the ISO-lead mode of collaboration as defined in the Vienna Agreement.
This draft is hereby submitted to the ISO member bodies and to the CEN member bodies for a parallel
five-month enquiry.
Should this draft be accepted, a final draft, established on the basis of comments received, will be
submitted to a parallel two-month approval vote in ISO and formal vote in CEN.
In accordance with the provisions of Council Resolution 15/1993 this document is circulated in
the English language only.
Conformément aux dispositions de la Résolution du Conseil 15/1993, ce document est
distribué en version anglaise seulement.
To expedite distribution, this document is circulated as received from the committee
secretariat. ISO Central Secretariat work of editing and text composition will be undertaken at
publication stage.
Pour accélérer la distribution, le présent document est distribué tel qu'il est parvenu du
secrétariat du comité. Le travail de rédaction et de composition de texte sera effectué au
Secrétariat central de l'ISO au stade de publication.
THIS DOCUMENT IS A DRAFT CIRCULATED FOR COMMENT AND APPROVAL. IT IS THEREFORE SUBJECT TO CHANGE AND MAY NOT BE
REFERRED TO AS AN INTERNATIONAL STANDARD UNTIL PUBLISHED AS SUCH.
IN ADDITION TO THEIR EVALUATION AS BEING ACCEPTABLE FOR INDUSTRIAL, TECHNOLOGICAL, COMMERCIAL AND USER PURPOSES, DRAFT
INTERNATIONAL STANDARDS MAY ON OCCASION HAVE TO BE CONSIDERED IN THE LIGHT OF THEIR POTENTIAL TO BECOME STANDARDS TO
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RECIPIENTS OF THIS DRAFT ARE INVITED TO SUBMIT, WITH THEIR COMMENTS, NOTIFICATION OF ANY RELEVANT PATENT RIGHTS OF WHICH
THEY ARE AWARE AND TO PROVIDE SUPPORTING DOCUMENTATION.
© International Organization for Standardization, 2011
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oSIST prEN ISO 717-2:2011
ISO/DIS 717-1
Copyright notice
This ISO document is a Draft International Standard and is copyright-protected by ISO. Except as permitted
under the applicable laws of the user’s country, neither this ISO draft nor any extract from it may be
reproduced, stored in a retrieval system or transmitted in any form or by any means, electronic,
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oSIST prEN ISO 717-2:2011
ISO/DIS 717-2
Contents Page
Foreword .iv
Introduction.v
1 Scope.1
2 Normative references.1
3 Terms and definitions .2
4 Procedure for evaluating single-number quantities for impact sound insulation rating .3
4.1 General.3
4.2 Reference values.3
4.3 Method of comparison.3
4.3.1 Measurements in one-third-octave bands .3
4.3.2 Measurements in octave bands .4
4.4 Statement of results .5
5 Procedure for evaluating the weighted reduction in impact sound pressure level by floor
coverings on bare heavy floors .6
5.1 General.6
5.2 Reference floor.6
5.3 Calculation.7
5.4 Statement of results .7
6 Procedure for evaluating the weighted reduction in impact sound pressure level by floor
coverings on lightweight floors .7
6.1 General.7
6.2 Reference curves for the reference lightweight floors used to calculate ΔL .8
t,w
6.3 Calculation.8
6.4 Statement of results .8
Annex A (informative) Additional weighting procedure.9
A.1 General.9
A.2 Calculation of spectrum adaptation term .9
A.2.1 Spectrum adaptation term for impact sound level .9
A.2.2 Spectrum adaptation term for the impact sound reduction of floor coverings.10
A.2.3 Spectrum adaptation term for the impact sound reduction of floor coverings on light
weight floors .10
Annex B (informative) Procedure for evaluating the equivalent weighted normalized impact sound
pressure level of bare heavy floors .11
B.1 General.11
B.2 Reference floor covering.11
B.3 Calculation.12
Annex C (informative) Examples of the evaluation of a single-number quantity.14
Bibliography.16
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ISO/DIS 717-2
Foreword
ISO (the International Organization for Standardization) is a worldwide federation of national standards bodies
(ISO member bodies). The work of preparing International Standards is normally carried out through ISO
technical committees. Each member body interested in a subject for which a technical committee has been
established has the right to be represented on that committee. International organizations, governmental and
non-governmental, in liaison with ISO, also take part in the work. ISO collaborates closely with the
International Electrotechnical Commission (IEC) on all matters of electrotechnical standardization.
International Standards are drafted in accordance with the rules given in the ISO/IEC Directives, Part 2.
The main task of technical committees is to prepare International Standards. Draft International Standards
adopted by the technical committees are circulated to the member bodies for voting. Publication as an
International Standard requires approval by at least 75 % of the member bodies casting a vote.
Attention is drawn to the possibility that some of the elements of this document may be the subject of patent
rights. ISO shall not be held responsible for identifying any or all such patent rights.
ISO 717-2 was prepared by Technical Committee ISO/TC 43, Acoustics, Subcommittee SC 2, Building
acoustics.
This second edition cancels and replaces the first edition (ISO 717-2:1996, ISO 717-2:1996/A1:2006), which
has been technically revised.
ISO 717 consists of the following parts, under the general title Acoustics — Rating of sound insulation in
buildings and of building elements:
Part 1: Airborne sound insulation
Part 2: Impact sound insulation
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ISO/DIS 717-2
Introduction
Methods of measurement of impact sound insulation in buildings and of building elements have been
standardized in ISO 10140-3 and ISO 140-7. These methods give values for the impact sound insulation
which are frequency dependent. The purpose of this part of ISO 717 is to standardize a method whereby the
frequency-dependent values of impact sound insulation can be converted into a single number characterizing
the acoustical performance.
The method has been widely used since 1968. However, since there is some evidence that it could be
improved, a spectrum adaptation term is added and it is recommended to gather experience with this.
The purpose of this revised version is to
⎯ to allow weighting steps of 0.1 dB to be used for expression of uncertainty,
⎯ to include the existing Amendments 1 and 2 of ISO 717-2, and
⎯ to update references.
References to standards which provide data for single-number evaluation are meant to be examples and not
complete surveys.
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oSIST prEN ISO 717-2:2011
DRAFT INTERNATIONAL STANDARD ISO/DIS 717-2
Acoustics — Rating of sound insulation in buildings and of
building elements — Part 2: Impact sound insulation
1 Scope
This part of ISO 717
a) defines single-number quantities for the impact sound insulation in buildings and of floors;
b) 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 140-7, and in octave bands in accord-ance with
that option in ISO 140-7 for field measurements only; and
c) 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
d) defines 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 part of ISO 717 are intended for rating the impact sound
insulation and for simplifying the formulation of acoustical requirements in building codes. An additional single-
number evaluation in 1/10-dB-steps for the expression of uncertainty is indicated (except for spectrum
adaptation terms).The required numerical values of the single-number quantities are specified according to
varying needs.
The rating of results from measurements carried out over an enlarged frequency range is dealt with in
Annex A.
A method for obtaining single-number quantities for bare heavy floors according to their performance in
combination with floor coverings is described in Annex B.
An example of the calculation of a single-number quantity is given in Annex C.
2 Normative references
The following referenced documents are indispensable for the application of this document. For dated
references, only the edition cited applies. For undated references, the latest edition of the referenced
document (including any amendments) applies.
ISO 10140-1:2010, Acoustics — Laboratory measurement of sound insulation of building elements
— Part 1: Application rules for specific products
ISO 10140-3:2010, Acoustics — Laboratory measurement of sound insulation of building element — Part 3:
Measurement of impact sound insulation
ISO 10140-5:2010, Acoustics — Laboratory measurement of sound insulation of building elements — Part 5:
Requirements for test facilities and equipments
ISO 140-7:1998, Acoustics — Measurement of sound insulation in buildings and of building elements —
Part 7: Field measurements of impact sound insulation of floors
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3 Terms and definitions
For the purposes of this document, the following terms and definitions apply.
3.1
single-number quantity for impact sound insulation rating derived from one-third-octave band
measurements
value of the relevant reference curve at 500 Hz after shifting it in accordance with the method specified in this
part of ISO 717
NOTE This quantity is expressed in decibels.
3.2
single-number quantity for impact sound insulation rating derived from octave band measurements
value of the relevant reference curve at 500 Hz after shifting it in accordance with the method specified in this
part of ISO 717, reduced by 5 dB
NOTE 1 Terms and symbols for the single-number quantity used depend on the type of measurement. Examples are
listed in table 1 for impact sound insulation properties of building elements and in table 2 for impact sound insulation
between rooms in buildings.
NOTE 2 In order to distinguish clearly between values with and without flanking transmission, primed symbols (e.g. L′ )
n
are used to denote values obtained with flanking transmission.
NOTE 3 This quantity is expressed in decibels.
3.3
weighted reduction in impact sound pressure level
difference between the weighted normalized impact sound pressure levels derived with a bare heavy
reference floor or with a light weight reference floor without and with a floor covering, obtained in accordance
with the method specified in this part of ISO 717
NOTE 1 The quantity derived with a bare heavy reference floor is denoted by ΔL and is expressed in decibels.
w
NOTE 2 The quantity derived with a bare heavy reference floor is denoted by ΔL and is expressed in decibels.
t,w
According to the type of reference floor it may be denoted by ΔL , ΔL , ΔL .
t1,w t2,w t3,w
3.4
spectrum adaptation term
C
I
value, in decibels, to be added to the single-number quantity to take account of the unweighted impact sound
level, thereby representing the characteristics of typical walking noise spectra
3.5
equivalent weighted normalized impact sound pressure level of a bare heavy floor
sum of the weighted normalized impact sound pressure level of the bare floor under test with the reference
floor covering and the weighted reduction in impact sound pressure level of the reference floor covering
obtained in accordance with the method specified in this part of ISO 717
NOTE This quantity is denoted by L and is expressed in decibels.
n,eq,0,w
Table 1 — Single-number quantities of impact sound insulation properties of floors
Derived from one-third-octave band values Defined in
Single-number quantity Term and symbol
Weighted normalized impact sound Normalized impact sound pressure ISO 10140-3: equation (1)
pressure level, L level, L 2010
n
n,w
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Table 2 — Single-number quantities of impact sound insulation between rooms in buildings
Derived from one-third-octave band values or octave-band values Defined in
Single-number quantity Term and symbol
Weighted normalized impact sound Normalized impact sound pressure ISO 140-7:1998 equation (2)
pressure level, L′ level, L′
n
n,w
Weighted standardized impact sound Standardized impact sound pressure ISO 140-7:1998 equation (3)
pressure level, L′ level, L′
nT,w nT
4 Procedure for evaluating single-number quantities for impact sound
insulation rating
4.1 General
The values obtained in accordance with ISO 10140-3 and ISO 140-7 are compared with reference values (see
4.2) at the frequencies of measurement within the range 100 Hz to 3 150 Hz for measurements in one-third-
octave bands or 125 Hz to 2 000 Hz for measurements in octave bands. The comparison shall be carried out
in accordance with 4.3.
4.2 Reference values
The set of reference values used for comparison with measurement results shall be as given in Table 3. The
reference curves are shown in Figure 1 and Figure 2.
NOTE The reference values for the octave bands 125 Hz to 1 000 Hz are equivalent to the energetic sum (rounded
to integers) of these for the relevant one-third-octave band values. The reference value for the octave band 2 000 Hz has
been reduced to take care of the one-third-octave band 3 150 Hz, which (for bare heavy floors) may contribute
considerably to the unfavourable deviations.
4.3 Method of comparison
4.3.1 Measurements in one-third-octave bands
To evaluate the results of a measurement of L , L’ or L’ in one-third-octave bands, the measurement data
n n nT
1)
shall be given to one decimal place . Shift the reference curve in increments of 1 dB (0,1 dB for the purpose
of expression of uncertainty) towards the measured curve until the sum of unfavourable deviations is as large
as possible but not more than 32,0 dB.
An unfavourable deviation at a particular frequency occurs when the results of measurements exceed the
reference value. Only the unfavourable deviations shall be taken into account.
The value, in decibels, of the reference curve at 500 Hz, after shifting it in accordance with this pro-
cedure, is L , L′ or L′ respectively.
n,w n,w nT,w
1)
The different parts of ISO 140 state that the results shall be reported “to one decimal place”. However, if the octave or
one-third-octave values have been reported with more than one decimal digit, the values shall be reduced to one decimal
place before use in the calculation of the single number rating. This is done by taking the value in tenths of dB closest to
the reported values: XX,XYZZZ… is rounded to XX,X if Y is less than 5 and to XX,X + 0,1 if Y is equal to or greater than 5.
Software developers should ensure that this reduction applies to the true input values and not only to the displayed
precision (as shown on the screen or printed on paper). Generally this can be implemented by the following sequence of
instructions: multiply the (positive) number XX,XYZZZ… by 10 and add 0,5, take the integer part and then divide the result
by 10. For further details see ISO 31-0:1992.
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ISO/DIS 717-2
4.3.2 Measurements in octave bands
To evaluate the results of a measurement of L’ or L’ in octave bands, the measurement data shall be given
n nT
1)
to one decimal place . Shift the reference curve in increments of 1 dB (0,1 dB for the purpose of expression
of uncertainty) towards the measured curve until the sum of unfavourable deviations is as large as possible
but not more than 10,0 dB.
The value, in decibels, of the reference curve at 500 Hz, after shifting it in accordance with this procedure and
then reducing it by 5 dB is L′ or L′ respectively.
n,w
nT,w
An unfavourable deviation at a particular frequency occurs when the results of measurements exceed the
reference value. Take into account only the unfavourable deviations.
Key
X frequency, in Hz
Y reference value, in dB
Figure 1 — Curve of reference values for impact sound, one-third-octave bands
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ISO/DIS 717-2
Key
X frequency, in Hz
Y reference value, in dB
Figure 2 — Curve of reference values for impact sound, octave bands
Table 3 — Reference values for impact sound
Frequency Reference values
dB
Hz One-third-octave bands Octave bands
100 62
125 62 67
160 62
200 62
250 62 67
315 62
400 61
500 60 65
630 59
800 58
1 000 57 62
1 250 54
1 600 51
2 000 48 49
2 500 45
3 150 42
4.4 Statement of results
The appropriate single-number quantity shall be given with reference to this part of ISO 717. The results of
measurements shall also be given in the form of a diagram as specified in ISO 10140-3 and ISO 140-7.
The uncertainty of the weighted single-number quantities may also be stated. In this case the numbers shall
be given to one decimal place.
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ISO/DIS 717-2
EXAMPLE
L = 53,2 dB ± 0,8 dB.
n,w
Spectrum adaptation terms do not have uncertainty values of their own.
For field measurements in accordance with ISO 140-7, it shall be stated whether the single-number quantity is
calculated from measuring results in one-third-octave bands or octave bands. In general there may be
differences between single numbers calculated from one-third-octave or octave band measurements of about
± 1 dB. Ratings based on one-third-octave band measurements are preferred.
5 Procedure for evaluating the weighted reduction in impact sound pressure level
by floor coverings on bare heavy floors
5.1 General
The reduction of impact sound pressure level (improvement of impact sound insulation), ΔL, of floor coverings
when tested on a homogeneous concrete slab floor as described in ISO 10140-1 is independent of the
normalized impact sound pressure level of the bare floor, L . However, the weighted normalized impact
n,0
sound pressure levels of the floor with and without a floor covering depend to some extent on L . In order to
n,0
obtain comparable values for ΔL between laboratories, it is therefore necessary to relate the measured
w
values of ΔL to a reference floor.
5.2 Reference floor
The reference floor is defined by the values for the normalized impact sound pressure level L given in
n,r,0
Table 4.
Table 4 — Normalized impact sound pressure level of the reference floor
Frequency L
n,r,0
Hz dB
100 67
125 67,5
160 68
200 68,5
250 69
315 69,5
400 70
500 70,5
630 71
800 71,5
1 000 72
1 250 72
1 600 72
2 000 72
2 500 72
3 150 72
The weighted normalized impact sound pressure level of the reference floor, L , evaluated in accordance
n,r,0,w
with 4.3.1, is 78 dB.
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NOTE The values given in table 4 represent a straight-line idealization of the normalized impact sound pressure level
of a 120 mm homogeneous concrete floor slab, levelling off, as in the practical case, at frequencies above 1 000 Hz.
5.3 Calculation
Calculate the weighted reduction of impact sound pressure level ΔL according to the following equations:
w
L = L −ΔL (1)
n,r n,r,0
Δ
...
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