Laboratory measurement of walking noise on floors

This document specifies a laboratory measurement method to determine noise radiated from a floor covering on a standard concrete floor when excited by a standard tapping machine.

Messung von Gehschall auf Fußböden im Prüfstand

Dieses Dokument legt ein Verfahren zur Messung der bei Anregung durch ein Norm Hammerwerk von einer Deckenauflage auf einer Bezugs Betondecke abgestrahlten Geräusche im Prüfstand fest.

Mesurage en laboratoire du bruit des pas sur les planchers

Le présent document spécifie une méthode de mesurage en laboratoire pour déterminer le bruit rayonné par un revêtement de sol sur un plancher en béton normalisé lorsqu’il est excité par une machine à chocs normalisée.

Laboratorijsko merjenje hrupa pri hoji po podu

General Information

Status
Published
Current Stage
6060 - Definitive text made available (DAV) - Publishing
Due Date
25-Nov-2020
Completion Date
25-Nov-2020

RELATIONS

Buy Standard

Standard
EN 16205:2021
English language
18 pages
sale 10% off
Preview
sale 10% off
Preview

e-Library read for
1 day
Draft
prEN 16205:2019
English language
18 pages
sale 10% off
Preview
sale 10% off
Preview

e-Library read for
1 day

Standards Content (sample)

SLOVENSKI STANDARD
SIST EN 16205:2021
01-marec-2021
Nadomešča:
SIST EN 16205:2013+A1:2018
Laboratorijsko merjenje hrupa pri hoji po podu
Laboratory measurement of walking noise on floors
Messung von Gehschall auf Fußböden im Prüfstand
Mesurage en laboratoire du bruit des pas sur les planchers
Ta slovenski standard je istoveten z: EN 16205:2020
ICS:
17.140.01 Akustična merjenja in Acoustic measurements and
blaženje hrupa na splošno noise abatement in general
91.060.30 Stropi. Tla. Stopnice Ceilings. Floors. Stairs
91.120.20 Akustika v stavbah. Zvočna Acoustics in building. Sound
izolacija insulation
SIST EN 16205:2021 en,fr,de

2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.

---------------------- Page: 1 ----------------------
SIST EN 16205:2021
---------------------- Page: 2 ----------------------
SIST EN 16205:2021
EN 16205
EUROPEAN STANDARD
NORME EUROPÉENNE
November 2020
EUROPÄISCHE NORM
ICS 91.120.20 Supersedes EN 16205:2013+A1:2018
English Version
Laboratory measurement of walking noise on floors

Mesurage en laboratoire du bruit des pas sur les Messung von Gehschall auf Fußböden im Prüfstand

planchers
This European Standard was approved by CEN on 21 September 2020.

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, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway,

Poland, Portugal, Republic of North Macedonia, Romania, Serbia, Slovakia, Slovenia, Spain, Sweden, Switzerland, Turkey and

United Kingdom.
EUROPEAN COMMITTEE FOR STANDARDIZATION
COMITÉ EUROPÉEN DE NORMALISATION
EUROPÄISCHES KOMITEE FÜR NORMUNG
CEN-CENELEC Management Centre: Rue de la Science 23, B-1040 Brussels

© 2020 CEN All rights of exploitation in any form and by any means reserved Ref. No. EN 16205:2020 E

worldwide for CEN national Members.
---------------------- Page: 3 ----------------------
SIST EN 16205:2021
EN 16205:2020 (E)
Contents Page

European foreword ....................................................................................................................................................... 3

Introduction .................................................................................................................................................................... 4

1 Scope .................................................................................................................................................................... 5

2 Normative references .................................................................................................................................... 5

3 Terms and definitions ................................................................................................................................... 5

4 Principle ............................................................................................................................................................. 7

5 Test arrangement ............................................................................................................................................ 7

5.1 Test facilities ..................................................................................................................................................... 7

5.2 Equipment ......................................................................................................................................................... 7

5.3 Mounting of the specimens .......................................................................................................................... 8

6 Test procedure ................................................................................................................................................. 8

7 Evaluation of results ...................................................................................................................................... 9

8 Precision ............................................................................................................................................................. 9

9 Expression of results ................................................................................................................................... 10

10 Test report ...................................................................................................................................................... 10

Annex A (informative) Presentation of the walking noise spectrum with uncertainty bars

(example) ........................................................................................................................................................ 11

Annex B (normative) Reference spectrum for laboratory bare floors .................................................. 12

Annex C (informative) Fixing the pads below the tapping machine ....................................................... 13

Annex D (informative) Background of the measuring method ................................................................ 14

Annex E (informative) Calculation of perceived walking loudness on floor coverings

installed floating ........................................................................................................................................... 16

Bibliography ................................................................................................................................................................. 18

---------------------- Page: 4 ----------------------
SIST EN 16205:2021
EN 16205:2020 (E)
European foreword

This document (EN 16205:2020) has been prepared by 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 May 2021, and conflicting national standards shall be

withdrawn at the latest by May 2021.

Attention is drawn to the possibility that some of the elements of this document may be the subject of

patent rights. CEN shall not be held responsible for identifying any or all such patent rights.

This document supersedes EN 16205:2013+A1:2018.

In comparison with the previous edition, the following technical modifications have been made:

— amendment of the Annex E to include the room correction.

According to the CEN-CENELEC Internal Regulations, the national standards organisations of the

following countries are bound to implement this European Standard: 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, Republic of North

Macedonia, Romania, Serbia, Slovakia, Slovenia, Spain, Sweden, Switzerland, Turkey and the United

Kingdom.
---------------------- Page: 5 ----------------------
SIST EN 16205:2021
EN 16205:2020 (E)
Introduction

This document sets up a laboratory measurement method to determine noise radiated from a floor

covering on a standard concrete floor when excited by a standard tapping machine. The noise is measured

in the room where the floor covering and the excitation are located. There is no restriction concerning

the type of floor covering unless the required small pads of the flooring could not be assembled. Using

the standard tapping machine according to EN ISO 10140 (all parts) means that a more general excitation

compared to walking alone is regarded – in the same way as it is accepted for impact sound improvement

measurements of floor coverings. The results are expressed in terms of the normalized A-weighted

average sound pressure level in the walking room. The results provide information about the noise

radiated. A more sophisticated psychoacoustic evaluation did not seem to be appropriate in view of the

fact that this measurement stands for a large range of sources with different acoustical behaviour (even

if only different types of walking were regarded). A subjective classification of the quality of the floor

coverings is not intended.
---------------------- Page: 6 ----------------------
SIST EN 16205:2021
EN 16205:2020 (E)
1 Scope

This document specifies a laboratory measurement method to determine noise radiated from a floor

covering on a standard concrete floor when excited by a standard tapping machine.

2 Normative references

The following documents are referred to in the text in such a way that some or all of their content

constitutes requirements 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.

EN ISO 10140-1, Acoustics — Laboratory measurement of sound insulation of building elements — Part 1:

Application rules for specific products (ISO 10140-1)

EN ISO 10140-2, Acoustics — Laboratory measurement of sound insulation of building elements — Part 2:

Measurement of airborne sound insulation (ISO 10140-2)

EN ISO 10140-3, Acoustics — Laboratory measurement of sound insulation of building elements — Part 3:

Measurement of impact sound insulation (ISO 10140-3)

EN ISO 10140-4:2010, Acoustics — Laboratory measurement of sound insulation of building elements —

Part 4: Measurement procedures and requirements (ISO 10140-4:2010)

EN ISO 10140-5, Acoustics — Laboratory measurement of sound insulation of building elements — Part 5:

Requirements for test facilities and equipment (ISO 10140-5)
3 Terms and definitions

For the purposes of this document, the terms and definitions given in EN ISO 10140 (all parts) and the

following apply.

ISO and IEC maintain terminological databases for use in standardization at the following addresses:

— ISO Online browsing platform: available at https://www.iso.org/obp
— IEC Electropedia: available at http://www.electropedia.org/
3.1
sufficiently large specimen

specimen whose radiated sound power does not increase any longer with size, or which covers the total

area of the floor

Note 1 to entry: In case of uncertainty, the testing laboratory will decide which size is sufficient.

3.2
pads

pieces of the flooring under test, which are as large as the hitting areas of the tapping machine hammers

Note 1 to entry: Quadratic pads should be the smallest possible including the whole hitting area.

3.3
walking sound pressure level (in third-octave band i)
n,walk,i

normalized impact sound pressure level in the upper (walking) room with a standardized contribution

of the concrete bare floor underneath the floor covering under test
---------------------- Page: 7 ----------------------
SIST EN 16205:2021
EN 16205:2020 (E)
Note 1 to entry: It is calculated according to Formula (1):
i,upper,with
 L +−LL if L < L +10log
i,ref,b ii,Fl,c ,Fl,b i,with i,pads 10
i,upper,pads
L =
ni,walk,
 (1)
L L
i,with i,pads
L +−LL
i,ref,b ii,Fl,c ,Fl,b
0,16⋅V 10 10
upper 10 10
10log − +10 else
10 
AT T
0 ii,upper,with ,upper,pads
where

L is the impact sound pressure level measured in the upper room, when a sufficiently large

i ,with
specimen is lying on the test floor;

L is the impact sound pressure level measured in the upper room, when only pads of the

i ,pads
flooring material are lying on the test floor below the tapping machine hammers;

L is the impact sound pressure level measured in the lower room, when the tapping machine

i,Fl,b
acts on the bare floor in the upper room;

L is the impact sound pressure level measured in the lower room, when the tapping machine

i,Fl,c
acts on the sufficiently large specimen in the upper room;
L is the reference values for the bare floor as given in Annex B;
i,ref,b
V is the volume of the upper room, in cubic metres;
upper

T is the reverberation time in the upper room with sufficiently large floor covering installed,

i,upper,with
in seconds;
T is the reverberation time in the upper room with pads installed, in seconds;
i,upper,pads
A 10 m .

Note 2 to entry: This definition presumes, that the reverberation time in the lower room does not change

and L .
between the measurements of Li,Fl,c i,Fl,b
Note 3 to entry: This can be achieved by leaving the lower room unchanged.
3.4
A-weighted walking sound pressure level
n,walk,A

A-weighted sound pressure level, calculated from L according to Formula (2) with C according to

n,walk,i i
EN 61672-1:
LC+ /10
21 ( )
n,walk,ii
L 10⋅log 10
(2)
n,walk,A 10∑ i=1
3.5
radiated walking sound
RWS

subjective perceived loudness radiated from a floor when a person with hard heel is walking on it

---------------------- Page: 8 ----------------------
SIST EN 16205:2021
EN 16205:2020 (E)
3.6
loudness
perceived strength of steady-state sound calculated according to Zwicker

Note 1 to entry: Its unit is sone. Loudness is a linear measure; hence a redoubling of the sone value results in a

redoubling of the perceived loudness. Loudness is based on the concept of critical bands.

3.7
critical band

loudness-model for human hearing system processes perceived sound in sub-bands called critical bands

Note 1 to entry: Critical bandwidth differs within the frequency range.

Note 2 to entry: The critical band produces the critical band scale. Its unit is Bark.

4 Principle

A floor test facility, according to EN ISO 10140-1 through EN ISO 10140-5, for impact and airborne sound

measurements is used. It consists of two medium-sized and medium damped rooms above each other,

separated by a standard homogeneous concrete floor. As a walking noise source, a standard tapping

machine according to EN ISO 10140-1 through EN ISO 10140-5 is applied. Several average sound

pressure level measurements in third-octave bands are made in the upper and lower rooms with the bare

floor either uncovered or covered with pads or sufficiently large “full-size” specimens of the tested

flooring. In the upper room, the reverberation times with large specimens and with merely pads present

shall be determined.

The walking sound pressure level is then calculated according to Formula (1) from the sound power

directly radiated from the floor covering into the upper room plus the sound power from the bare floor

under the floor covering, which radiates back into the upper room. Finally, the A-weighted walking sound

pressure level is calculated from the measured average sound pressure levels.

In Formula (1), the radiation from the bare floor through the floor covering is corrected for deviations of

the actual laboratory floor from the reference spectrum in Annex B. Furthermore, the tapping machine

self-noise theoretically cancels out and, therefore, is not needed explicitly. However, because of the

uncertainty of the measured quantities, the resulting walking sound pressure level in the second line in

Formula (1) may become very uncertain and even complex, in particular when a loud tapping machine is

used and the flooring does not radiate much itself. Complex values are avoided by setting the inner

bracket to zero as a minimum [first line in Formula (1)]. To detect unreliable results, the uncertainty of

Ln,walk shall be calculated for each third-octave band and
...

SLOVENSKI STANDARD
oSIST prEN 16205:2019
01-oktober-2019
Laboratorijsko merjenje hrupa pri hoji po podu
Laboratory measurement of walking noise on floors
Messung von Gehschall auf Fußböden im Prüfstand
Mesurage en laboratoire du bruit des pas sur les planchers
Ta slovenski standard je istoveten z: prEN 16205
ICS:
17.140.01 Akustična merjenja in Acoustic measurements and
blaženje hrupa na splošno noise abatement in general
91.060.30 Stropi. Tla. Stopnice Ceilings. Floors. Stairs
91.120.20 Akustika v stavbah. Zvočna Acoustics in building. Sound
izolacija insulation
oSIST prEN 16205:2019 en,fr,de

2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.

---------------------- Page: 1 ----------------------
oSIST prEN 16205:2019
---------------------- Page: 2 ----------------------
oSIST prEN 16205:2019
DRAFT
EUROPEAN STANDARD
prEN 16205
NORME EUROPÉENNE
EUROPÄISCHE NORM
August 2019
ICS 91.120.20 Will supersede EN 16205:2013+A1:2018
English Version
Laboratory measurement of walking noise on floors

Mesurage en laboratoire du bruit des pas sur les Messung von Gehschall auf Fußböden im Prüfstand

planchers

This draft European Standard is submitted to CEN members for 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, Former Yugoslav Republic of Macedonia, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania,

Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Romania, Serbia, Slovakia, Slovenia, Spain, Sweden, Switzerland,

Turkey 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
CEN-CENELEC Management Centre: Rue de la Science 23, B-1040 Brussels

© 2019 CEN All rights of exploitation in any form and by any means reserved Ref. No. prEN 16205:2019 E

worldwide for CEN national Members.
---------------------- Page: 3 ----------------------
oSIST prEN 16205:2019
prEN 16205:2019 (E)
Contents Page

European foreword ....................................................................................................................................................... 3

Introduction .................................................................................................................................................................... 4

1 Scope .................................................................................................................................................................... 5

2 Normative references .................................................................................................................................... 5

3 Terms and definitions ................................................................................................................................... 5

4 Principle ............................................................................................................................................................. 7

5 Test arrangement ............................................................................................................................................ 7

5.1 Test facilities ..................................................................................................................................................... 7

5.2 Equipment ......................................................................................................................................................... 7

5.3 Mounting of the specimens .......................................................................................................................... 8

6 Test procedure ................................................................................................................................................. 8

7 Evaluation of results ...................................................................................................................................... 9

8 Precision ............................................................................................................................................................. 9

9 Expression of results ................................................................................................................................... 10

10 Test report ...................................................................................................................................................... 10

Annex A (informative) Presentation of the walking noise spectrum with uncertainty bars

(example) ........................................................................................................................................................ 11

Annex B (normative) Reference spectrum for laboratory bare floors .................................................. 12

Annex C (informative) Fixing the pads below the tapping machine ....................................................... 13

Annex D (informative) Background of the measuring method ................................................................ 14

Annex E (informative) Calculation of perceived walking loudness on floor coverings

installed floating ........................................................................................................................................... 16

E.1 General ............................................................................................................................................................. 16

E.2 Data measured .............................................................................................................................................. 16

E.3 Calculations .................................................................................................................................................... 16

E.3.1 Sound spectrum L ............................................................................................................................. 16

i,loud

E.3.2 Loudness RWS ............................................................................................................................................... 17

E.4 Test report ...................................................................................................................................................... 17

Bibliography ................................................................................................................................................................. 18

---------------------- Page: 4 ----------------------
oSIST prEN 16205:2019
prEN 16205:2019 (E)
European foreword

This document (prEN 16205:2019) has been prepared by 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 CEN Enquiry.
This document will supersede EN 16205:2013+A1:2018.

In comparison with the previous edition, the following technical modifications have been made:

— amendment of the Annex E to include the room correction.
---------------------- Page: 5 ----------------------
oSIST prEN 16205:2019
prEN 16205:2019 (E)
Introduction

This document sets up a laboratory measurement method to determine noise radiated from a floor

covering on a standard concrete floor when excited by a standard tapping machine. The noise is measured

in the room where the floor covering and the excitation are located. There is no restriction concerning

the type of floor covering unless that the required small pads of the flooring could not be assembled.

Using the standard tapping machine according to EN ISO 10140, (all parts) means that a more general

excitation compared to walking alone is regarded – in the same way as it is accepted for impact sound

improvement measurements of floor coverings. The results are expressed in terms of the normalized A-

weighted average sound pressure level in the walking room. The results provide information about the

noise radiated. A more sophisticated psychoacoustic evaluation did not seem to be appropriate in view

of the fact that this measurement stands for a large range of sources with different acoustical behaviour

(even if only different types of walking were regarded). A subjective classification of the quality of the

floor coverings is not intended.
---------------------- Page: 6 ----------------------
oSIST prEN 16205:2019
prEN 16205:2019 (E)
1 Scope

This document specifies a laboratory measurement method to determine noise radiated from a floor

covering on a standard concrete floor when excited by a standard tapping machine.

2 Normative references

The following documents are referred to in the text in such a way that some or all of their content

constitutes requirements 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.

EN ISO 10140-1, Acoustics — Laboratory measurement of sound insulation of building elements — Part 1:

Application rules for specific products (ISO 10140-1)

EN ISO 10140-2, Acoustics — Laboratory measurement of sound insulation of building elements — Part 2:

Measurement of airborne sound insulation (ISO 10140-2)

EN ISO 10140-3, Acoustics — Laboratory measurement of sound insulation of building elements — Part 3:

Measurement of impact sound insulation (ISO 10140-3)

EN ISO 10140-4:2010, Acoustics — Laboratory measurement of sound insulation of building elements —

Part 4: Measurement procedures and requirements (ISO 10140-4:2010)

EN ISO 10140-5, Acoustics — Laboratory measurement of sound insulation of building elements — Part 5:

Requirements for test facilities and equipment (ISO 10140-5)
3 Terms and definitions

For the purposes of this document, the terms and definitions given in EN ISO 10140 (all parts) and the

following apply.

ISO and IEC maintain terminological databases for use in standardization at the following addresses:

— ISO Online browsing platform: available at http://www.iso.org/obp
— IEC Electropedia: available at http://www.electropedia.org/
3.1
sufficiently large specimen

specimen whose radiated sound power does not increase any longer with size, or which covers the total

area of the floor

Note 1 to entry: In case of uncertainty, the testing laboratory will decide, which size is sufficient.

3.2
pads

pieces of the flooring under test, which are as large as the hitting areas of the tapping machine hammers

Note 1 to entry: Quadratic pads should be the smallest possible including the whole hitting area.

3.3
walking sound pressure level (in third-octave band i)
n,walk,i

normalised impact sound pressure level in the upper (walking) room with a standardised contribution

of the concrete bare floor underneath the floor covering under test
Note 1 to entry: It is calculated according to Formula (1):
---------------------- Page: 7 ----------------------
oSIST prEN 16205:2019
prEN 16205:2019 (E)
T
i,upper,with
L +L −L if L <L +10⋅log
i,ref,b ii,Fl,cb,Fl, i,with i,pads
i,upper,pads
L
 L
(1)
i,with i,pads
L= L +L −L
ni,walk,i,ref, b i,Fl,c i,Fl,b
10 10
0,16 ⋅V
 10 10
upper
10 log − +10 else
 10
AT T
0 ii,upper,with ,upper,pads


where
Li ,with is the impact sound pressure level measured in the upper room, when a
sufficiently large specimen is lying on the test floor;

L is the impact sound pressure level measured in the upper room, when only pads of

i ,pads
the flooring material are lying on the test floor below the tapping machine
hammers;

L is the impact sound pressure level measured in the lower room, when the tapping

i,Fl,b
machine acts on the bare floor in the upper room;

L is the impact sound pressure level measured in the lower room, when the tapping

i,Fl,c
machine acts on the sufficiently large specimen in the upper room;
L is the reference values for the bare floor as given in Annex B;
i,ref,b
V is the volume of the upper room, in cubic metres;
upper

T is the reverberation time in the upper room with sufficiently large floor covering

,upper,with
installed, in seconds;
T is the reverberation time in the upper room with pads installed, in seconds;
i,upper,pads
A 2
0 10 m .

Note 2 to entry: This definition presumes, that the reverberation time in the lower room does not change

between the measurements of L and L .
i,Fl,c i,Fl,b
Note 3 to entry: This can be achieved by leaving the lower room unchanged.
3.4
A-weighted walking sound pressure level
n,walk,A

A-weighted sound pressure level, calculated from L according to Formula (2) with C according to

n,walk,i i
EN 61672-1:
LC+ /10
( )
n,walk,ii
L 10 ⋅lg 10 (2)
n,walk,A ∑
i =1
3.5
Radiated walking sound
RWS

subjective perceived loudness radiated from a floor when a person with hard heel is walking on it

---------------------- Page: 8 ----------------------
oSIST prEN 16205:2019
prEN 16205:2019 (E)
3.6
loudness
perceived strength of steady-state sound calculated according to Zwicker

Note 1 to entry: Its unit is sone. Loudness is a linear measure; hence a redoubling of the sone value results in a

redoubling of the perceived loudness. Loudness is based on the concept of critical bands.

3.7
critical band

loudness-model for human hearing system processes perceived sound in sub-bands called critical bands

Note 1 to entry: Critical bandwidth differs within the frequency range.

Note 2 to entry: The critical band produces the critical band scale. Its unit is Bark.

4 Principle

A floor test facility, according to EN ISO 10140-1 through 5, for impact and airborne sound measurements

is used. It consists of two medium-sized and medium damped rooms above each other, separated by a

standard homogeneous concrete floor. As a walking noise source, a standard tapping machine according

to EN ISO 10140-1 through 5 is applied. Several average sound pressure level measurements in third-

octave bands are made in the upper and lower rooms with the bare floor either uncovered or covered

with pads or sufficiently large “full-size” specimens of the tested flooring. In the upper room, the

reverberation times with large specimens and with merely pads present shall be determined.

The walking sound pressure level is then calculated according to Formula (1) from the sound power

directly radiated from the floor covering into the upper room plus the sound power from the bare floor

under the floor covering, which radiates back into the upper room. Finally, the A-weighted walking sound

pressure level is calculated from the measured average sound pressure levels.

In Formula (1), the radiation from the bare floor through the floor covering is corrected for deviations of

the actual laboratory floor from the reference spectrum in Annex B. Furthermore, the tapping machine

self-noise theoretically cancels out and, therefore, is not needed explicitly. However, because of the

uncertainty of the measured quantities, the resulting walking sound pressure level in the second line in

Formula (1) may become very uncertain and even complex, in particular when a loud tapping machine is

...

Questions, Comments and Discussion

Ask us and Technical Secretary will try to provide an answer. You can facilitate discussion about the standard in here.