svensk standard ss-en iso 717-2:2013

SVENSK STANDARD

Fastställd/Approved: 2013-03-13Publicerad/Published: 2013-03-20Utgåva/Edition: 2Språk/Language: engelska/EnglishICS: 91.120.20

SS-EN ISO 717-2:2013

Byggakustik – Värdering av ljudisolering i byggnader och hos byggdelar – Del 2: Stegljudsisolering (ISO 717-2:2013)

Acoustics – Rating of sound insulation in buildings and of building elements – Part 2: Impact sound insulation (ISO 717-2:2013)

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Europastandarden EN ISO 717-2:2013 gäller som svensk standard. Detta dokument innehåller den officiella engelska versionen av EN ISO 717-2:2013.

Denna standard ersätter SS-EN ISO 717-2, utgåva 1 och SS-EN ISO 717-2 / A1:2006, utgåva 1.

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Denna standard är framtagen av kommittén för Byggakustik, SIS / TK 197.

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Förhållandet till övriga delar under samma huvudtitel - Utdrag ur Förord i ISO 717-2:2013/ Relations to other parts under the same general title - Extract from the Foreword of ISO 717-2:2013 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


EUROPEAN STANDARD

NORME EUROPÉENNE

EUROPÄISCHE NORM

EN ISO 717-2

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 immeubles et des éléments de construction - Partie 2:

Protection contre le bruit de choc (ISO 717-2:2013)

Akustik - Bewertung der Schalldämmung in Gebäuden und von Bauteilen - Teil 2: Trittschalldämmung (ISO 717-

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 C O M I T É E U R O P É E N D E N O R M A LI S A T I O N EUR OP ÄIS C HES KOM ITEE FÜR NOR M UNG

Management Centre: Avenue Marnix 17, B-1000 Brussels

© 2013 CEN All rights of exploitation in any form and by any means reserved worldwide for CEN national Members.

Ref. No. EN ISO 717-2:2013: E


iii

Contents Page

Foreword ........................................................................................................................................................................................................................................ivIntroduction ..................................................................................................................................................................................................................................v1 Scope ................................................................................................................................................................................................................................. 12 Normative references ...................................................................................................................................................................................... 13 Termsanddefinitions ..................................................................................................................................................................................... 24 Procedure for evaluating single-number quantities for impact sound insulation rating ........ 3

4.1 General ........................................................................................................................................................................................................... 34.2 Reference values .................................................................................................................................................................................... 34.3 Method of comparison ..................................................................................................................................................................... 34.4 Statement of results ............................................................................................................................................................................ 4

5 Procedureforevaluatingtheweightedreductioninimpactsoundpressurelevelbyfloorcoveringsonbareheavyfloors .............................................................................................................................................................. 55.1 General ........................................................................................................................................................................................................... 55.2 Reference floor ........................................................................................................................................................................................ 65.3 Calculation .................................................................................................................................................................................................. 65.4 Statement of results ............................................................................................................................................................................ 7

6 Procedureforevaluatingtheweightedreductioninimpactsoundpressurelevelbyfloorcoveringsonlightweightfloors ............................................................................................................................................................. 76.1 General ........................................................................................................................................................................................................... 76.2 Reference curves for the reference lightweight floors used to calculate ΔLt,w .................................86.3 Calculation .................................................................................................................................................................................................. 86.4 Statement of results ............................................................................................................................................................................ 8

Annex A (informative) Additional weighting procedure ................................................................................................................. 9Annex B (informative) Procedure for evaluating the equivalent weighted normalized impact

soundpressurelevelofbareheavyfloors ..............................................................................................................................11Annex C (informative) Examples of the evaluation of a single-number quantity ...............................................13Bibliography .............................................................................................................................................................................................................................17

SS-EN ISO 717-2:2013 (E)SIS multi user license: Lunds universitetsbibliotek. Customer number: , Date: 5/3/2020

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.

iv


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.

v


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

1


3 Termsanddefinitions

For the purposes of this document, the following terms and definitions apply.

3.1single-number quantity for impact sound insulation rating derived from one-third-octave band measurementsvalue 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.

3.2single-number quantity for impact sound insulation rating derived from octave band measurementsvalue 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. Ln

′ ) are used to denote values obtained with flanking transmission.

Note 3 to entry: This quantity is expressed in decibels.

3.3weighted reduction in impact sound pressure leveldifference 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 ΔLw and is expressed in decibels.

Note 2 to entry: The quantity derived with a bare heavy reference floor is denoted by ΔLt,w and is expressed in decibels. According to the type of reference floor it may be denoted by ΔLt1,w, ΔLt2,w, ΔLt3,w.

3.4spectrum adaptation termCIvalue, 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

3.5equivalentweightednormalizedimpactsoundpressurelevelofabareheavyfloorsum 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 Ln,eq,0,w and is expressed in decibels.

Table1—Single-numberquantitiesofimpactsoundinsulationpropertiesoffloors

Derived from one-third-octave band valuesDefinedin

Single-number quantity Term and symbolWeighted normalized impact sound pressure level, Ln,w

Normalized impact sound pres-sure level, Ln

ISO 10140-3:2010 Formula (1)

2


Table 2 — Single-number quantities of impact sound insulation between rooms in buildings

Derived from one-third-octave band values or octave-band values Definedin

Single-number quantity Term and symbolWeighted normalized impact sound pressure level, Ln,w

′Normalized impact sound pressure level, Ln

′ ISO 140-7:1998 Formula (2)

Weighted standardized impact sound pressure level, L Tn ,w

′Standardized impact sound pressure level, L Tn

′ ISO 140-7:1998 Formula (3)

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 Ln, Ln′ or L Tn

′ in one-third-octave bands, the measurement data shall be given to one decimal place.1) 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 Ln,w, Ln,w

′ or L Tn ,w′ respectively.

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 a decibel closest to the reported values: XX,XYZ ZZ … 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,XYZ ZZ … by 10 and add 0,5, take the integer part and then divide the result by 10. For further details see ISO 80000-1.[1]

3


Table 3 — Reference values for impact sound

Frequency Reference values dB

Hz One-third-octave bands Octave bands100 125 160

62 62 62

67

200 250 315

62 62 62

67

400 500 630

61 60 59

65

800 1 000 1 250

58 57 54

62

1 600 2 000 2 500

51 48 45

49

3 150 42

4.3.2 Measurements in octave bands

To evaluate the results of a measurement of Ln′ or L Tn

′ in octave bands, the measurement data shall be given to one decimal place.1) 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 Ln,w

′ or L Tn ,w′ , respectively.

An unfavourable deviation at a particular frequency occurs when the results of measurements exceed the reference value. Take into account only the unfavourable deviations.

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.

EXAMPLE

Ln,w dB dB= 53 2 0 8, ,±

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 can be differences between single-number quantities calculated from one-third-octave or octave band measurements of about ±1 dB. Ratings based on one-third-octave band measurements are preferred.

4


KeyL reference value f frequency

Figure 1 — Curve of reference values for impact sound, one-third-octave bands

KeyL reference value f frequency

Figure 2 — Curve of reference values for impact sound, octave bands

5 Procedure for evaluating the weighted reduction in impact sound pressure levelbyfloorcoveringsonbareheavyfloors

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, Ln,0. However, the weighted normalized impact sound pressure levels of the floor with and without a floor covering depend to some extent on Ln,0. In order to obtain comparable values for ΔLw between laboratories, it is therefore necessary to relate the measured values of ΔL to a reference floor.

5


5.2 Referencefloor

The reference floor is defined by the values for the normalized impact sound pressure level Ln,r,0 given in Table 4.

Table 4 — Normalized impact sound pressure level ofthereferencefloor

Frequency Hz

Ln,r,0 dB

100 125 160

67 67,5 68

200 250 315

68,5 69

69,5400 500 630

70 70,5 71

800 1 000 1 250

71,5 72 72

1 600 2 000 2 500

72 72 72

3 150 72

The weighted normalized impact sound pressure level of the reference floor, Ln,r,0,w, evaluated in accordance with 4.3.1, is 78 dB.

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 ΔLw according to Formulae (1) and (2):

L L Ln,r n,r,0= − ∆ (1)

6


∆L L L Lw n,r,0,w n,r,w n,r,wdB= − = −78 (2)

where

Ln,r is the calculated normalized impact sound pressure level of the reference floor with the floor covering under test;

Ln,r,0 is the defined normalized impact sound pressure level of the reference floor (see Table 4);

ΔL is the reduction in impact sound pressure level measured in accordance with ISO 10140-1;

Ln,r,w is the calculated weighted normalized impact sound pressure level of the reference floor with the floor covering under test;

Ln,r,0,w is obtained from Ln,r,0 in accordance with 4.3.1.


The single-number quantity ΔLw 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 10140-1.

The uncertainty of ΔLw may also be stated. In this case the numbers shall be given to one decimal place.

EXAMPLE

∆ ±Lw dB dB= 18 9 0 8, ,

Spectrum adaptation terms do not have uncertainty values of their own.

The reduction in impact sound pressure level measured on a concrete floor slab as defined in ISO 10140-1 and the single-number quantity ΔLw may only be used in connection with similar types of massive floors (concrete, hollow concrete, hollow bricks, etc.); it is not appropriate for use on other types of construction.

6 Procedure for evaluating the weighted reduction in impact sound pressure levelbyfloorcoveringsonlightweightfloors

6.1 General

The reduction of impact sound pressure level (improvement of impact sound insulation), ΔLt,1, ΔLt,2, ΔLt,3, of floor coverings when tested on one of the three lightweight reference floors as described in ISO 10140-5 is independent of the normalized impact sound pressure level of the bare reference floor Ln,t1,0, Ln,t2,0 and Ln,t3,0, respectively.

However, the weighted, normalized impact sound pressure levels of a lightweight floor with and without a floor covering depend on the Ln,t,0 value for the bare floor on which the floor covering is used. In order to obtain values for ΔLt,,w, which are comparable between laboratories and especially which can be used to calculate the normalized impact sound pressure level of lightweight floors with the floor covering, it is necessary to relate the measured values of ΔLt,1, ΔLt,2 and ΔLt,3 to the respective reference curves for the lightweight floors in ISO 10140-5.

7


6.2 ReferencecurvesforthereferencelightweightfloorsusedtocalculateΔLt,w

In ISO 10140-5, there are three different reference lightweight floors and, therefore, it is necessary to define different types of reference curves for the calculation of ΔLt,w. The reference curves are defined by the relevant values for Ln,t,r,0. Table 5 contains the reference values for Ln,t,r,0 along with the weighted, normalized impact sound pressure levels for the different reference floors.

Table5—Normalizedimpactsoundpressurelevelforthelightweightreferencefloors

FrequencyLn,t,r,0

forfloorsoftypeNo1andNo2in ISO 10140-5

Ln,t,r,0 forfloorsoftypeNo.3in

ISO 10140-5Hz dB dB

100 78 69125 78 72160 78 75200 78 78250 78 78315 78 78400 76 78500 74 78630 72 78800 69 76

1 000 66 741 250 63 721 600 60 692 000 57 662 500 54 633 150 51 60

Weighted normalized impact sound pressure level

72 75

Values of ΔLt,w calculated with the reference floor for type No. 1 or 2 shall be designated as ΔLt,1,w or ΔLt,2,w respectively; values of ΔLt,w calculated with the reference floor for type No. 3 shall be designated as ΔLt,3,w.

6.3 Calculation

The calculation shall be carried out as specified in 5.3, substituting Table 5 for Table 4 and substituting nothing else.


The single number quantity ΔLt,1,w, ΔLt,2,w or ΔLt,3,w shall be given with reference to Clause 6. The results of measurements shall be given in the form of a diagram as specified in ISO 10140-1.

8


Annex A (informative)

Additional weighting procedure

A.1 General

This annex introduces an additional rating method by describing an adaptation term based on the unweighted linear impact sound level.

The rating by Ln,w has been shown to be quite adequate in characterizing impact noise like walking for wooden floors and concrete floors with effective coverings such as carpets or floating floors. However, it insufficiently takes into account level peaks at single (low) frequencies, for instance with timber joist floors, or the behaviour of bare concrete floors in this respect. There is clear evidence (see References [2]–[5]) that the unweighted impact level of the tapping machine is more representative of the A-weighted impact levels as caused by walking for all types of floor, while this rating is also more restrictive to single noise peaks (replacing thereby the 8 dB rule which was used in ISO 717-2:1982.

Therefore an adaptation term CI is introduced to take this effect into account, given as a separate number which cannot be confused with the value for Ln,w. This term is so defined that for massive floors with effective coverings its value is about zero, while for timber joist floors with dominating low frequency peaks it will be slightly positive. For concrete floors without cover or with less effective covering, it will range from −15 dB to 0 dB.

If these effects are to be taken into account in requirements, these could be written as the sum of Ln,w′

and CI.

A.2 Calculation of spectrum adaptation term

A.2.1 Spectrum adaptation term for impact sound level

The results of a measurement of Ln, Ln′ or L Tn

′ in one-third-octave bands in the frequency range 100 Hz to 2 500 Hz or in octave bands in the frequency range 125 Hz to 2 000 Hz shall be given to one decimal place, then added up on an energetic basis Ln,sum, Ln,sum

′ or L Tn ,sum′ and rounded to an integer.2)

NOTE The summation on an energetic basis is calculated for k frequency bands by

L Li

i

k

sum ==∑10 10

10

1

lg/

dB

The resulting spectrum adaptation term CI is then calculated as an integer from one of Formulae (A.1) to (A.3):

C L LI n,sum n,w dB= − −( )15 (A.1)

C L LI n,sum n,w dB= − −( )′ ′15 (A.2)

2) XX,YZZ Z … is rounded to XX if Y is less than 5 and to XX + 1 if Y is greater than or equal to 5. For further details see ISO 80000-1.[1] Software implementers should be aware that calculation of the spectrum adaptation terms involves floating-point calculations that are never exact and may incur rounding errors. In some rare cases, this may lead to a difference of +1 dB or −1 dB in the final result. In order to avoid rounding errors, it is strongly recommended that the highest possible machine accuracy available be used for floating-point representation and mathematical operations.

9


C L LT TI n ,sum n ,w dB= − −( )′ ′15 (A.3)

NOTE Calculations of the spectrum adaptation term can additionally be carried out for an enlarged frequency range (including 50 Hz + 63 Hz + 80 Hz). The term is then denoted as CI,50–2 500 or CI,63–2 000.

An example of the calculation of the single-number quantity and the adaptation term is given in Annex C.

A.2.2 Spectrumadaptationtermfortheimpactsoundreductionoffloorcoverings

To gather experience in the field of the unweighted impact sound level in addition to the calculation of the weighted reduction in impact sound pressure level ΔLw based on the reference curve (Figure 1), a spectrum adaptation term for flat response for the impact sound reduction may be determined and stated. This spectrum adaptation term CIΔ is calculated from

C C CI I,r,0 I,r∆ = − (A.4)

where

CI,r is the spectrum adaptation term for the reference floor with the floor covering under test;

CI,r,0 is the spectrum adaptation term for the reference floor with Ln,r,0 in accordance with A.2.1 (CI,r,0 = −11 dB).

A single-number reduction based on the unweighted linear impact sound pressure level ΔLlin may be calculated from

∆ ∆ ∆L L C L C L Clin n,r,0,w I,r,0 n,r,w I,r w I,= + − + = +( ) (A.5)

where

Ln,r,w is the calculated normalized impact sound pressure level of the reference floor with the floor covering under test;

Ln,r,0,w is obtained from Ln,r,0 in accordance with 4.3.1 (Ln,r,0,w = 78 dB).

A.2.3 Spectrumadaptationtermfortheimpactsoundreductionoffloorcoveringsonlightweightfloors

To gather experience with the unweighted impact sound level for lightweight floors, a spectrum adaptation term for flat response for the impact sound reduction may also be calculated for the floor coverings on lightweight floors. The spectrum adaptation term, CIΔ,t, is calculated from Formula (A.6):

C C CI ,t I,t,r,0 I,t,r∆ = − (A.6)

where

CI,t,r is the spectrum adaptation term for the reference floor with the floor covering under test;

CI,t,r,0 is the spectrum adaptation term for the reference floor with Ln,t,r,0 — it takes the value 0 dB for the reference curve for floors of type Nos. 1 and 2 and −3 dB for the reference curve for floors of type No. 3.

Values of CIΔ,t calculated with the reference floor for type Nos. 1 or 2 shall be designated as CIΔ,t1 or CIΔ,t2.

Values of CIΔ,t calculated with the reference floor for type No. 3 shall be designated as CIΔ,t3.

10


Annex B (informative)

Procedure for evaluating the equivalent weighted normalized

impactsoundpressurelevelofbareheavyfloors

B.1 General

For the rating of impact sound properties of floors in general, the weighted normalized impact sound pressure level Ln,w is used. However, a bare concrete floor is seldom used without a floor covering.

Therefore in this annex a method to calculate an equivalent weighted normalized impact sound pressure level for bare concrete floors is given to describe the impact sound insulation of a bare floor with respect to the effect of a floor covering on this floor.

The equivalent weighted normalized impact sound pressure level of a bare heavy floor, Ln,eq,0,w (see 3.5), can be used to calculate the weighted normalized impact sound pressure level Ln,w, of this bare floor with a floor covering with known ΔLw, as follows:

L L Ln,w n,eq,0,w w= − ∆ (B.1)

NOTE It is possible to show that Ln,eq,0,w can be substituted by (Ln,0,w + CI,0 + 11) and that Ln,w for a bare floor characterized by Ln,0,w with a covering characterized by ΔLw and ΔLlin is given by

L L C Ln,w n,0,w I,0 w dB= + + −( )11 ∆ (B.2)

or

L C L C L L C L Cn,w I n,0,w I,0 lin dB n,0,w I,0 w I dB+ = + − = + − +( ) ( ) ∆ ∆ ∆ (B.3)

where CI,0 is the spectrum adaptation term for the bare floor.

B.2 Referencefloorcovering

The reference floor covering is defined by the values for the reduction of impact sound pressure level (improvement of impact sound insulation), ΔLr, given in Table B.1.

The weighted reduction in impact sound pressure level of the reference floor covering, ΔLr,w, evaluated in accordance with Clause 5, is 19 dB.

NOTE The values given in Table B.1 represent a straight-line idealization of the general shape of the reduction in impact sound pressure level by a floor covering, with a slope of 12 dB per octave.

11


Table B.1 — Reduction in impact sound pressure level ofthereferencefloorcovering

Frequency Hz

ΔLr dB

100 125 160

0 0 0

200 250 315

2 6

10400 500 630

14 18 22

800 1 000 1 250

26 30 30

1 600 2 000 2 500

30 30 30

3 150 30

B.3 Calculation

The equivalent weighted normalized impact sound pressure level of bare massive floors, Ln,eq,0,w, is calculated using Formulae (B.4) and (B.5):

L L Ln,1 n,0 r= − ∆ (B.4)

L L L Ln,eq,0,w n,1,w r,w n,1,w dB= + = +∆ 19 (B.5)

where

Ln,1 is the calculated normalized impact sound pressure level of the floor under test with the reference floor covering;

Ln,0 is the normalized impact sound pressure level of the bare floor under test, measured in accordance with ISO 10140-3;

ΔLr is the defined reduction in impact sound pressure level of the reference floor covering (see Table B.1);

Ln,1,w is the calculated weighted normalized impact sound pressure level of the floor under test with the reference floor covering and is obtained from Ln,1 in accordance with 4.3.

12


Annex C (informative)

Examples of the evaluation of a single-number quantity

Examples are given of the evaluation of a single-number quantity based on the result of:

a) measurements in a laboratory with:

— determination of the impact sound level of a bare heavy floor, and of that floor with a floor covering Table C.1),

— determination of the reduction in impact sound pressure level of the floor covering (Table C.2);

b) measurements in situ with determination of the impact sound level of the floor (Table C.3).

NOTE In these examples, the addition has been performed including 3 150 Hz, which is not in accordance with the text: maximum is 2 500 Hz.

13


TableC.1—Example:Measurementsinalaboratory(inone-third-octavebands)onabareheavyfloorandonthatfloorwithafloor

cove

ring

, the

n ca

lcul

atio

n of

Ln,

W a

nd C

I

Baremassivefloor

Withfloorcovering

f IL n

Refe

renc

e va

lues

sh

ifte

d by

+19

dB

Unfa

vour

able

de

viat

ion

L nRe

fere

nce

valu

es

shif

ted

by +

4 dB

Unfa

vour

able

de

viat

ion

Hz

dBdB

dBdB

dBdB

100

62,1

81—

59,1

66—

125

63,2

81—

59,5

66—

160

63,5

81—

61,6

66—

200

66,2

81—

63,2

66—

250

68,5

81—

65,3

66—

315

70,0

81—

66,5

660,

540

071

,781

—67

,765

2,7

500

73,1

79—

67,0

643,

063

073

,878

—67

,163

4,1

800

73,5

77—

66,5

624,

51

000

73,8

76—

66,1

615,

11

250

73,3

730,

362

,558

4,5

1 60

073

,170

3,1

57,9

552,

92

000

73,0

676,

052

,752

0,7

2 50

072

,464

8,4

47,0

493

150

71,2

6110

,248

,046

2,0

L n,s

um =

83,

261

3... =

83

dB

C I =

83

− 15

− 7

9... =

−11

dB

Sum

28

,0 <

32,

0 L n

,w =

79

dBL n

,sum

= 7

6,05

2 5.

.. = 7

6 dB

C I

= 7

6 −

15 −

64

= −3

dB

Sum

30

,0 <

32,

0 L n

,w =

64

dB

14


TableC.2—Example:Measurementsinalaboratory(inone-third-octavebands)onafloorcoveringonastandardfloor,thencalculation

of Δ

L w a

nd Δ

L lin

L n

f IBarefloor

L n,0

Wit

h co

veri

ng

L nRe

duct

ion

ΔL =

Ln,

0 − L

nReferencefloor

L n,r,

0Re

duct

ion

−ΔL(

L n,r)

Refe

renc

e va

lue

+ 3

dBUn

favo

urab

le

devi

atio

nH

zdB

dBdB

dBdB

dBdB

100

65,2

62,2

3,0

67,0

64,0

65—

125

66,3

62,6

3,7

67,5

63,8

65—

160

68,0

66,1

1,9

68,0

66,1

651,

120

068

,565

,53,

068

,565

,565

0,5

250

68,0

64,8

3,2

69,0

65,8

650,

831

569

,065

,53,

569

,566

,065

1,0

400

69,3

65,3

4,0

70,0

66,0

642,

050

070

,264

,16,

170

,564

,463

1,4

630

70,7

64,0

6,7

71,0

64,3

622,

380

071

,264

,27,

071

,064

,561

3,5

1 00

071

,563

,87,7

72,0

64,3

604,

31

250

72,1

61,3

10,8

72,0

61,2

574,

21

600

73,0

57,8

15,2

72,0

56,8

542,

82

000

74,0

53,7

20,3

72,0

51,7

510,

72

500

73,5

48,1

25,4

72,0

46,6

48—

3 15

073

,149

,923

,272

,048

,845

3,8

L n,s

um =

75,

710

4... =

76

dB

C I =

76

− 15

− 6

3 =

−2 d

B ΔL

lin =

78

− 11

− (6

3 −

2) =

6 d

B

Sum

28

,4 <

32,

0 L n

,w,r

= 63

dB

ΔLw

= 7

8 −

63 =

15

dB

15


Table C.3 — Example: Measurement in situ (in octave bands), then calculation of Ln,w and CI

fI LnReference value shiftedby−6dB

Unfavourable devia-tion

Hz dB dB dB125 65,3 61 4,3250 64,5 61 3,5500 58,0 59 —

1 000 55,8 56 —2 000 43,0 43 —

Ln,sum = 68,596 14... = 69 dB CI = 69 − 15 − 54 = 0 dB

Sum 7,8 < 10,0 dB Ln,w = 54 dB

16


Bibliography

[1] ISO 80000-1, Quantities and units — Part 1: General

[2] Fasold W. Untersuchungen über den Verlauf der Sollkurve für den Trittschallschutz im Wohnungsbau [Investigation of the shape of the reference curve for impact sound insulation in buildings]. Acustica. 1965, 15 pp. 271–284

[3] Gerretsen E. A new system for rating impact sound insulation. Appl. Acoust. 1976, 9 pp. 247–263

[4] Bodlund K. Rating of impact sound insulation between dwellings. J. Sound Vibrat. 1985, 102 pp. 381–402

[5] Aubree D., Carman T. A. et al. A comparison of methods for rating the insulation of floors against impact noise. CSTB/BRE Report, 1988

17


Anteckningar/Notes


OrdlistaHär har vi samlat de förkortningar som oftast används i standardiseringssammanhang och förklarat dem kortfattat. Förkortningarna är sorterade i alfabetisk ordning.

CEN European Committee for Standardization (Comité Européen de Normalisation). Utarbetar Europastandarder för områden som inte täcks av CENELEC.

CENELEC European Committee for Electrotechnical Standardization (Comité Européen de Normalisation Electro-technique). Utarbetar Europastandarder inom el.

CWA CEN/CENELEC Workshop Agreement. Tekniskt dokument utarbetat av CEN- och CENELEC-organiserad arbetsgrupp.

EN Europastandard från CEN/CENELEC.

ETSI European Telecommunications Standards Institute. De utarbetar Europastandarder inom telekommunikationsområdet.

FDIS Final Draft International Standard. Slutligt förslag till global standard från IEC eller ISO.

ICS InternationalClassificationforStandards.Ettinternationelltklassificeringssystemförstandarder.

IEC International Electrotechnical Commission. Utarbetar internationell standard inom området el.

ISO International Organization for Standardization. Utarbetar internationell standard inom alla områden utom telekommunikation och elteknik.

ITS Informationstekniska standardiseringen. Utarbetar och bevakar standardisering inom informationsteknik. En av de svenska medlemmarna i ETSI, European Telecommunications Standards Institute.

ITU International Telecommunication Union. Utarbetar internationella standarder inom radio och telekommunikation.

IWA ISO Workshop Agreement. Tekniskt dokument utarbetad av ISO-organiserad arbetsgrupp.

Konsoliderad En konsoliderad standard har sitt tillägg inarbetat och ersätter tidigare utgåva.

PAS PubliclyAvailableSpecifications.TekniskadokumentinomIECochISO.

prEN Förslag till Europastandard från CEN, CENELEC eller ETSI.

SEK SEK Svensk Elstandard. Svarar för standardiseringen inom området el i Sverige. Svensk medlem i CENELEC och IEC.

SIS SIS, Swedish Standards Institute. Svensk medlem i CEN och ISO.

SIS-TR Technical Report. Teknisk rapport som beskriver resultat av undersökningar eller andra studier.

SIS-TS TechnicalSpecification.Tekniskspecifikationsomangertekniskakravsomskauppfyllasavenprodukt, process eller tjänst.

SIS-WA SIS Work Shop Agreement. Överenskommelse som ger regler, riktlinjer eller kännetecken för aktiviteter eller deras resultat.

SIS-WS SISWorkshop.StandardiseringsprojektmedsyfteattsnabbttaframSISWorkshopAgreement.

SS Svensk standard. Fastställs av SIS, SEK eller ITS. SS ingår som första led i beteckningen för svensk standard fastställd efter 1 januari 1978.

SS/T1 Tillägg 1 till svensk standard.

SS-EN Europastandard fastställd som svensk standard.

SS-EN/AC Rättelse till Europastandard fastställd som svensk standard.

SS-EN/A1 Tillägg 1 till Europastandard fastställd som svensk standard.

SS-EN ISO Internationell standard från ISO som blivit Europastandard och fastställd som svensk standard.

SS-EN ISO/AC Rättelse till standard från ISO som blivit Europastandard och fastställd som svensk standard.

SS-EN ISO/A1 Tillägg 1 till standard från ISO som blivit Europastandard och fastställd som svensk standard.

SS-EN ISO/IEC Internationell standard från ISO/IEC som blivit Europastandard och fastställd som svensk standard.

SS-IEC IEC-standard fastställd som svensk standard.

SS-ISO ISO-standard fastställd som svensk standard.

SS-ISO Amd 1 ISO-standard fastställd som svensk standard. Tillägg 1.

SS-ISO/Cor 1 ISO-standard fastställd som svensk standard. Rättelse 1.

WD Working Draft. Förslag till internationell standard eller Europastandard utarbetade i WG.

WG Working Group. Arbetsgrupp tillsatt av t. ex. en internationell kommitté.

WI Work Item. Ärende, en avgränsad arbetsuppgift som avser att resultera i en standard.


GlossaryHere are a number of the abbreviations/acronyms frequently used in standardisation contexts, with brief explanations. The abbreviations are in alphabetical order.

CEN European Committee for Standardization (Comité Européen de Normalisation). Develops European standards for areas not covered by CENELEC.

CENELEC European Committee for Electrotechnical Standardization (Comité Européen de Normalisation Electro-technique). Develops European standards in the electricity sector.

CWA CEN/CENELEC Workshop Agreement. Technical document developed by CEN- and CENELEC-organised working group.

Consolidated A consolidated standard incorporates its supplement and replaces previous editions.

EN European standard from CEN/CENELEC.

ETSI EuropeanTelecommunicationsStandardsInstitute.DevelopEuropeanstandardsinthetelecommunicationsfield.

FDIS Final Draft International Standard. Final proposal for global standard from IEC or ISO.

ICS InternationalClassificationforStandards.Aninternationalclassificationsystemforstandards.

IEC International Electrotechnical Commission. Develops global standards in the electricity sector.

ISO International Organization for Standardization. Develops global standards in all areas except telecommunications and electrical technology.

ITS ITS Information Technology Standardisation. Develops and monitors standardisation in information technology. A Swedish member of the ETSI, European Telecommunications Standards Institute.

ITU International Telecommunication Union. Develops global standards in radio and telecommunications.

IWA ISO Workshop Agreement. Technical document developed by ISO-organised working group.

PAS PubliclyAvailableSpecifications.TechnicalIECandISOdocuments.

prEN Draft European standards from CEN, CENELEC or ETSI.

SEK SEK Svensk Elstandard. Develops and monitors standardisation in the electrotechnical sector. Swedish member of the CENELEC and IEC.

SIS SIS, Swedish Standards Institute. Swedish member of CEN and ISO.

SIS-TR Technical Report. Technical report describing the results of investigations or other studies.

SIS-TS TechnicalSpecification.Technicalspecificationdescribingwhatrequirementsaproduct,processor servicemustfulfil.

SIS-WA SIS Workshop Agreement. An agreement setting out rules, guidelines or criteria for activities or their results.

SIS-WS SIS Workshop. Standardisation project aimed at rapidly developing an SIS Workshop Agreement.

SS Swedishstandard.EstablishedbySIS,SEKorITS.SSisthefirststepinallstandardclassificationsto emerge since 1 January 1978.

SS/T1 Supplement 1 to a Swedish standard.

SS-EN European standard established as Swedish standard.

SS-EN/AC Correction to the European standard established as Swedish standard.

SS-EN/A1 Supplement to the European standard established as Swedish standard.

SS-EN ISO International and European standard established as Swedish standard.

SS-EN ISO/AC Correction to the international and European standard established as Swedish standard.

SS-EN ISO/A1 Supplement to the international and European standard established as Swedish standard.

SS-EN ISO/IEC International and European standard established as Swedish standard.

SS-IEC IEC standard established as Swedish standard.

SS-ISO ISO standard established as Swedish standard.

SS-ISO Amd 1 ISO standard established as Swedish standard, with Amendment 1.

SS-ISO/Cor 1 ISO standard established as Swedish standard, with Correction 1.

WD Working Draft. Proposed international or European standard developed by the Working Group.

WG Working Group. Appointed by an international committee or some other body.

WI Work Item. A delimited task designed to result in a standard.


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6. Intellectual Property InfringementIf, in the opinion of SIS Förlag, there is a risk of a claim is instituted against Customer, alleging that a Product distributed by SIS Förlag hereunder infringes any duly issued intellectual property right of a third party, SIS Förlag may, at its sole option and expense: (i) procure for Customer the right to use or sell such Product; (ii) substitute a functionally equivalent, non-infringing unit of the Product or modify such Product so that it no longer infringes but is substantially equivalent in functionality; or (iii) stop the Customer’s use of the Product and refund the License Agreement paid by Customer for such Product during the time hen such Product could not be used. SIS Förlag shall have no liability to Customer for claims that could have been avoided if the Customer would haveaccepted a replacement product or if the use of the Product would have been stopped.

7. ExportCustomer shall not export or re-export, in whole or in part, the Products or any information regarding the Products, in contradiction to any stipulations contained on the Products or contrary to Swedish or any other applicable export legislation.

8. Term and TerminationThis License Agreement will continue for an indefinite duration. Customer may terminate this License Agreement at any time. SIS Förlag may terminate this License Agreement immediately upon breach of any provision of this License Agreement. Upon any termination of this License Agreement, Customer shall immediately discontinue the use of the Product and destroy all copies of the Product.

9. Governing LawThis License Agreement shall be governed by the laws of Sweden without reference to its conflict of law provisions and any dispute shall be settled by Swedish courts.

10. Miscellaneous This License Agreement constitutes the complete and exclusive agreement between SIS Förlag and you with respect to the subject matter hereof, and supercedes all prior oral or written understandings, communications or agreements not specifically incorporated herein. This License Agreement may not be modified except in writing duly signed by an authorized representative of SIS Förlag and you. If any provision of this License Agreement is held to be unenforceable for any reason, such provision shall be reformed only to the extent necessary to make it enforceable, and such decision shall not affect the enforceability (i) of such provision under other circumstances, or (ii) of the remaining provisions here of under all circumstances.


SIS, Swedish Standards Institute och SEK Svensk Elstandard leder arbetet med standardisering i Sverige. Tillsammans med företag och organisationer jobbar vi med att förenkla, förbättra, kvalitetssäkra och skapa gemensamma standarder. SIS kunder har inflytande i internationell standardisering genom CEN i Europa och ISO globalt. SEK samordnar svensk medverkan i CENELEC i Europa och IEC globalt.

Du kan få dina standarder i olika format och media, detta är ett av dem. SIS Förlag AB är störst i Norden på att leverera standarder och allt som rör dess tillämpning. En tryckt standard från SIS Förlag AB är alltid tryckt på miljövänligt papper.

Vill du veta mer om vårt utbud och tjänster? Ring oss på 08-555 523 10 eller besök oss på www.sis.se

The Swedish Standards Institute (SIS) and SEK Svensk Elstandard share principal responsibility for standardisation in Sweden. Working with various agencies, enterprises and organisations, we seek to simplify, to introduce improvements, to secure quality and to establish common standards. SIS customers influence today’s international standardisation work via CEN in Europe and ISO globally. SEK coordinates Swedish participation in CENELEC in Europe and in the IEC at the global level.

You can obtain your standards in different formats and in different media – this is just one of them. SIS Förlag AB is the leading supplier in the Nordic area of standards and all related applications. Printed standards from SIS Förlag AB are always printed on eco-friendly paper.

Would you like to know more about our range of products and services? Phone us at +46 8 555 523 10 or visit us at www.sis.se

SIS Förlag AB SE-118 80 Stockholm, SwedenTelephone +46 8 555 523 10. Fax +46 8 555 523 11E-post [email protected] www.sis.se


svensk standard ss-en iso 717-2:2013

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