Acoustic properties of building elements and of buildings - Laboratory measurement of the impact sound insulation of stairs and stair isolating elements

This document specifies procedures to measure in laboratory the impact sound level reduction of isolated heavy landings connected to a heavy wall, isolated heavy flights of stairs connected to a heavy landing, lower or upper floor, and lightweight stairs connected to a heavy wall, lower or upper floor.
This document also considers the characterization of isolating elements for heavy landings or heavy flights of stairs in terms of an insertion loss expressed as an impact sound level difference. The corresponding procedure is given in a normative annex (Annex A), separated from the other procedures for the sake of clarity.
The tests are performed in defined test configurations and the test results are firstly restricted to the test configurations as described in the test report. The data can be used for comparing the performance of products and as input for EN ISO 12354-2:2017, Annex F, to calculate the sound pressure levels produced by the same stairs and isolating elements when installed in buildings.

Akustische Eigenschaften von Bauteilen und von Gebäuden - Prüfstandsmessungen der Trittschalldämmung von Treppen und Treppen-Entkopplungselementen

Propriétés acoustiques des éléments de construction et des bâtiments - Mesurage en laboratoire de l’isolation au bruit de choc des escaliers et des éléments isolants d’escalier

Le présent document spécifie les modes opératoires pour le mesurage en laboratoire de la réduction du niveau de bruit de choc des paliers lourds isolés fixés à un mur lourd, des volées d’escalier lourd isolées fixées à un palier, un plancher inférieur ou supérieur, et des escaliers légers fixés à un mur, un plancher inférieur ou supérieur lourd.
Le présent document traite également de la caractérisation des éléments isolants pour les paliers lourds ou les volées d’escalier lourd concernant une perte par insertion exprimée comme une différence de niveau de bruit de choc. Le mode opératoire correspondant est donné dans une annexe normative (Annexe A), séparée des autres modes opératoires pour plus de clarté.
Les essais sont effectués dans des configurations d’essai définies et les résultats d’essai sont d’abord limités aux configurations d’essai telles que décrites dans le rapport d’essai. Les données peuvent être utilisées pour comparer les performances des produits et en tant que données d’entrée pour l’EN ISO 12354-2:2017, Annexe F, afin de calculer les niveaux de pression acoustique produits par les mêmes escaliers et éléments isolants lorsqu’ils sont installés dans des bâtiments.

Akustične lastnosti gradbenih elementov in stavb - Laboratorijsko merjenje izoliranosti stopnic in stopniščnih izolacijskih elementov pred udarnim zvokom

General Information

Status
Not Published
Publication Date
07-Dec-2023
Current Stage
4599 - Dispatch of FV draft to CMC - Finalization for Vote
Start Date
09-Dec-2022
Due Date
29-Nov-2022
Completion Date
09-Dec-2022

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SLOVENSKI STANDARD
oSIST prEN 17823:2022
01-april-2022
Akustične lastnosti gradbenih elementov in stavb - Laboratorijsko merjenje
izoliranosti stopnic in stopniščnih izolacijskih elementov pred udarnim zvokom

Acoustic properties of building elements and of buildings - Laboratory measurement of

the impact sound insulation of stairs and stair isolating elements

Akustische Eigenschaften von Bauteilen und von Gebäuden - Prüfstandsmessungen der

Trittschalldämmung von Treppen und Treppen-Entkopplungselementen

Propriétés acoustiques des éléments de construction et des bâtiments - Mesurage en

laboratoire de l’isolation au bruit de choc des escaliers et des éléments isolants

d’escalier
Ta slovenski standard je istoveten z: prEN 17823
ICS:
91.060.30 Stropi. Tla. Stopnice Ceilings. Floors. Stairs
91.120.20 Akustika v stavbah. Zvočna Acoustics in building. Sound
izolacija insulation
oSIST prEN 17823:2022 en,fr,de

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

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oSIST prEN 17823:2022
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oSIST prEN 17823:2022
DRAFT
EUROPEAN STANDARD
prEN 17823
NORME EUROPÉENNE
EUROPÄISCHE NORM
February 2022
ICS 91.060.30; 91.120.20
English Version
Acoustic properties of building elements and of buildings -
Laboratory measurement of the impact sound insulation of
stairs and stair isolating elements

Propriétés acoustiques des éléments de construction et Akustische Eigenschaften von Bauteilen und von

des bâtiments - Mesurage en laboratoire de l'isolation Gebäuden - Prüfstandsmessungen der

au bruit de choc des escaliers et des éléments isolants Trittschalldämmung von Treppen und Treppen-

d'escalier Entkopplungselementen

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, 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.

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

© 2022 CEN All rights of exploitation in any form and by any means reserved Ref. No. prEN 17823:2022 E

worldwide for CEN national Members.
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oSIST prEN 17823:2022
prEN 17823:2022 (E)
Contents Page

European foreword ............................................................................................................................................ 4

Introduction .......................................................................................................................................................... 5

1 Scope .......................................................................................................................................................... 6

2 Normative references .......................................................................................................................... 6

3 Terms and definitions ......................................................................................................................... 7

4 Principle of the method(s) ............................................................................................................... 12

4.1 Horizontal transmission; case of isolated heavy landings or lightweight stairs

connected to walls .............................................................................................................................. 12

4.2 Horizontal transmission; case of isolated heavy flights of stairs connected to heavy

landings .................................................................................................................................................. 13

4.3 Vertical transmission; case of lightweight stairs connected to heavy floors ................ 14

4.3.1 General.................................................................................................................................................... 14

4.3.2 Connection to floors (top in Figure 3) ......................................................................................... 14

4.3.3 Connection to ceilings (bottom in Figure 3) .............................................................................. 15

5 Test facilities and equipment ......................................................................................................... 15

5.1 General.................................................................................................................................................... 15

5.2 Reference wall ...................................................................................................................................... 16

5.2.1 General.................................................................................................................................................... 16

5.2.2 Wall surface .......................................................................................................................................... 16

5.2.3 Openings or recesses to receive the landing ............................................................................. 16

5.3 Auxiliary wall ....................................................................................................................................... 16

5.4 Reference floor .................................................................................................................................... 16

5.5 Reference ceiling ................................................................................................................................. 17

5.6 Reference landing ............................................................................................................................... 17

5.7 Reference flight ................................................................................................................................... 18

5.8 Lightweight stair (system)............................................................................................................... 18

6 Test arrangement ............................................................................................................................... 19

6.1 General.................................................................................................................................................... 19

6.2 Erecting the reference wall ............................................................................................................. 19

6.3 Isolated installation of reference landing .................................................................................. 19

6.4 Rigid installation of reference landing ....................................................................................... 20

6.5 Isolated installation of reference flight ...................................................................................... 20

6.6 Rigid installation of reference flight ............................................................................................ 21

6.7 Installation of the lightweight stair system ............................................................................... 21

7 Test Procedure ..................................................................................................................................... 22

7.1 General.................................................................................................................................................... 22

7.2 Structure-borne sound measurements ....................................................................................... 22

7.3 Generation of sound field ................................................................................................................. 23

7.3.1 General.................................................................................................................................................... 23

7.3.2 Excitation of reference wall ............................................................................................................ 23

7.3.3 Excitation of reference landing ...................................................................................................... 23

7.3.4 Excitation of reference flight .......................................................................................................... 23

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prEN 17823:2022 (E)

7.3.5 Excitation of lightweight stair ........................................................................................................ 24

7.4 Generation of additional loads ...................................................................................................... 24

8 Precision ................................................................................................................................................ 24

9 Evaluation and test report............................................................................................................... 25

9.1 Evaluation.............................................................................................................................................. 25

9.2 Expression of results ......................................................................................................................... 25

9.3 Test report ............................................................................................................................................ 25

Annex A (normative) Determining the impact sound pressure level difference ..................... 27

A.1 General ................................................................................................................................................... 27

A.2 Principle of the method .................................................................................................................... 27

A.2.1 Horizontal transmission; case of isolated heavy landings connected to walls ............ 27

A.2.2 Horizontal transmission; case of isolated heavy flights of stairs connected to heavy

landings .................................................................................................................................................. 28

A.3 Test arrangement ............................................................................................................................... 28

A.4 Procedure .............................................................................................................................................. 28

A.4.1 General ................................................................................................................................................... 28

A.4.2 Excitation of rigidly connected reference landing and reference flight ......................... 28

A.5 Precision ................................................................................................................................................ 28

A.6 Evaluation and test report............................................................................................................... 29

A.6.1 Evaluation.............................................................................................................................................. 29

A.6.2 Expression of results ......................................................................................................................... 29

A.6.3 Test report ............................................................................................................................................ 29

Bibliography ....................................................................................................................................................... 30

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oSIST prEN 17823:2022
prEN 17823:2022 (E)
European foreword

This document (prEN 17823:2022) 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.
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oSIST prEN 17823:2022
prEN 17823:2022 (E)
Introduction

The procedure for characterizing the impact sound performance of stairs comes from

EN ISO 12354-2:2017, Annex F, where the performance is expressed, like the performance of any floor

covering, as a reduction of impact sound pressure level. This quantity allows the product comparison of

stairs and stair isolating elements and predicting the impact sound of stairs in buildings using

EN ISO 12354-2.
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oSIST prEN 17823:2022
prEN 17823:2022 (E)
1 Scope

This document defines procedures to measure in laboratory the impact sound level reduction of isolated

heavy landings connected to a heavy wall, isolated heavy flights of stairs connected to a heavy landing,

floor or ceiling, and lightweight stairs connected to a heavy wall, floor or ceiling.

This document also considers the characterization of isolating elements for heavy landings or heavy

flights of stairs in terms of an insertion loss expressed as an impact sound level difference. The

corresponding procedure is given in a normative annex (Annex A), separated from the other procedures

for the sake of clarity.

The tests are performed in defined test configurations and the test results are firstly restricted to the test

configurations as described in the test report. The data can be used for comparing the performance of

products and as input for EN ISO 12354-2:2017, Annex F, to calculate the sound pressure levels produced

by the same stairs and isolating elements when installed in buildings.
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 12354-2:2017, Building acoustics - Estimation of acoustic performance of buildings from the

performance of elements - Part 2: Impact sound insulation between rooms (ISO 12354-2:2017)

prEN 12354-5:2022, Building acoustics — Estimation of acoustic performance of buildings from the

performance of elements — Part 5: Sounds levels due to the service equipment
EN 14366, Laboratory measurement of noise from waste water installations

EN ISO 717-2, Acoustics - Rating of sound insulation in buildings and of building elements - Part 2: Impact

sound insulation (ISO 717-2:2020)

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

Measurement of airborne sound insulation (ISO 10140-2:2021)

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

Measurement of impact sound insulation (ISO 10140-3:2021)

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

Measurement procedures and requirements (ISO 10140-4:2021)

EN ISO 10140-5:2021, Acoustics — Laboratory measurement of sound insulation of building elements —

Part 5: Requirements for test facilities and equipment

EN ISO 10848-1, Acoustics - Laboratory and field measurement of flanking transmission for airborne,

impact and building service equipment sound between adjoining rooms - Part 1: Frame document (ISO

10848-1:2017)

EN ISO 12999-1, Acoustics - Determination and application of measurement uncertainties in building

acoustics - Part 1: Sound insulation (ISO 12999-1:2020)

EN ISO 16283-2, Acoustics - Field measurement of sound insulation in buildings and of building elements -

Part 2: Impact sound insulation (ISO 16283-2:2020)
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oSIST prEN 17823:2022
prEN 17823:2022 (E)
3 Terms and definitions
For the purposes of this document, the following terms and definitions apply.

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

— IEC Electropedia: available at http://www.electropedia.org/
— ISO Online browsing platform: available at http://www.iso.org/obp
3.1
heavyweight stair

stair made of reinforced concrete, consisting of flights of stairs, landings and optionally isolating elements

between stair elements and building elements. In buildings heavyweight stairs are usually located in

stairwells and not inside dwellings

Note 1 to entry: In this standard a heavyweight reference stair is defined that forms a transmission system,

together with the reference wall as part of which the stair and isolating elements are subjected to testing.

3.2
lightweight stair

stair made of components like steps, string boards, handrails that are made of steel/wood/stone or glass

(for typical examples see 0, 0) and optionally isolating elements. In buildings lightweight stairs are

usually located inside dwellings

Note 1 to entry: In this standard a lightweight stair (system) is defined by all its components and forms a

transmission system, together with the reference wall, reference floor and reference ceiling as part of which the

stair is subjected to testing.
3.3
stair isolating element

component of a stair that reduces the impact sound transmission of the stair into building elements

(walls, floors and ceilings)
3.4
reference wall

wall, where the stair is attached to and by which the impact sound is radiated to the receiving room when

the reference heavy landing or the reference heavy flight or the lightweight stair is excited (see Figure 6

and Figure 7)
3.5
auxiliary wall

wall opposite of the reference wall by which the reference landing is supported (see Figure 6 and

Figure 7)
3.6
reference floor

floor, where the stair is attached to and by which the sound is radiated to the receiving room when the

lightweight stair is excited (see Figure 8)

Note 1 to entry: A receiving room underneath the reference floor is not necessarily required, see Clause 5.

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oSIST prEN 17823:2022
prEN 17823:2022 (E)
3.7
reference ceiling

ceiling where the stair is attached to and by which the sound is radiated to the receiving room when the

lightweight stair is excited (see Figure 8)

Note 1 to entry: A receiving room above the ceiling is not necessarily required, see Clause 5.

3.8
reference landing

heavyweight landing in the source room which, together with the reference wall, forms a transmission

system as part of which the stair and isolating elements are subjected to testing (see Figure 6)

3.9
reference flight

heavyweight stair flight in the source room which, together with the reference wall and the reference

landing, forms a transmission system as part of which the stair and isolating elements are subjected to

testing (see Figure 7)
3.10
receiver impact sound pressure level
Li,receiver

energetically averaged sound pressure level in a 3rd octave band in the receiving room due to radiation

of the reference wall (L ) reference floor (L ), reference ceiling (L ), when excited by the tapping

i,wall i,floor i,ceiling
machine according to EN ISO 10140-5:2021, Annex E
Note 1 to entry: L is expressed in decibels.
i,receiver

Note 2 to entry: See EN ISO 10140-4 for definition of the energetically averaged sound pressure level.

Note 3 to entry: The impact sound pressure level of the reference wall Li,wall is determined according to

prEN 12354-5:2022, Annex B, from a transfer function measurement according to EN ISO 10848-1 and the

theoretical force spectrum of the standard tapping machine according to 0.
3.11
normalized receiver impact sound pressure level
Ln0,receiver

sum of the receiver impact sound pressure level, L , and a correction term, expressed in decibels,

i,receiver

where the correction term is equal to ten times the common logarithm of the ratio of the measured

equivalent sound absorption area, A, of the receiving room to that of the reference equivalent sound

absorption area, A
LL +10lg (1)
n0,receiver i,receiver
Where A = 10 m
Note 1 to entry: Ln0,receiver is expressed in decibels.

Note 2 to entry: See EN ISO 10140-4 for definition of the measured equivalent sound absorption area, A, of the

receiving room.
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oSIST prEN 17823:2022
prEN 17823:2022 (E)
3.12
stair impact sound pressure level
i,stair

energetically averaged sound pressure level in a 3rd octave band in the receiving room due to radiation

of the reference wall, reference floor or reference ceiling, when reference landing (L ), reference

i,landing

flight (L ) or lightweight stair (L ) is excited by the tapping machine according to

i,flight i,S
EN ISO 10140-5:2021, Annex E
Note 1 to entry: L is expressed in decibels.
i,stair

Note 2 to entry: See EN ISO 10140-4 for definition of the energetically averaged sound pressure level.

3.13
normalized stair impact sound pressure level
n0,stair

sum of the stair impact sound pressure level, L , and a correction term, expressed in decibels, where

i,stair

the correction term is equal to ten times the common logarithm of the ratio of the measured equivalent

sound absorption area, A, of the receiving room to that of the reference equivalent sound absorption area,

LL+10lg (2)
n0,stair i,stair
Where A = 10 m
Note 1 to entry: L is expressed in decibels.
n0,stair

Note 2 to entry: See EN ISO 10140-4 for definition of the measured equivalent sound absorption area, A, of the

receiving room.
3.14
landing impact sound pressure level reduction
landing

difference of the normalized wall impact sound pressure level and the normalized landing impact sound

pressure level of the isolated landing
(3)
ΔLL −L
landing n0,wall n,landing
Where
L is the normalized impact sound pressure level of the reference wall;
n0,wall

L is the normalized impact sound pressure level of the isolated reference landing.

n,landing
Note 1 to entry: ΔL is expressed in decibels.
landing

Note 2 to entry: The landing impact sound pressure level reduction, ΔL , characterizes the sound insulation

landing

improvement due to the junction landing/wall and the landing isolating element, compared to the direct excitation

of the wall. This quantity is required for the prediction of the impact sound transmission by isolated landings in

buildings, as described in EN ISO 12354-2:2017, Annex F.
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prEN 17823:2022 (E)
3.15
flight impact sound pressure level reduction
flight

difference of the normalized landing impact sound pressure level with the landing rigidly connected to

the reference wall and the normalized flight impact sound pressure level of the isolated flight

(4)
ΔLL −L
flight n0,landing n,flight
Where
L is the normalized impact sound pressure level of the reference landing rigidly
n0,landing
connected to the reference wall;
L is the normalized impact sound pressure level of the isolated flight.
n,flight
Note 1 to entry: ΔL is expressed in decibels.
flight

Note 2 to entry: The flight impact sound pressure level reduction, ΔL , characterizes the sound insulation

flight

improvement due to the junction flight/landing and the flight isolating element, compared to the direct excitation

of the landing. This quantity is required for the prediction of the impact sound transmission by isolated flights in

buildings, as described in EN ISO 12354-2:2017, Annex F.
3.16
stair impact sound pressure level reduction
stair

difference of the normalized receiver (reference wall/reference ceiling/reference floor) impact sound

pressure level without stair and with the lightweight stair connected to the reference wall, reference

ceiling and reference floor
(5)
ΔLL −L
stair n0,receiver n,stair
Where
L is the normalized impact sound pressure level of the receiver (reference wall,
n0,receiver

reference floor, reference ceiling) with respect to the direction of the transmission;

Ln,stair is the normalized impact sound pressure level of the lightweight stair with respect to

the direction of the transmission.
Note 1 to entry: ΔL is expressed in decibels.
stair

Note 2 to entry: The stair impact sound pressure level reduction, , characterizes the sound insulation

stair

improvement due to the stair construction and isolating elements, compared to the direct excitation of the receiver

(wall/ceiling/floor). This quantity is required for the prediction of the impact sound transmission by lightweight

stairs in buildings, as described in EN ISO 12354-2:2017, Annex F.
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oSIST prEN 17823:2022
prEN 17823:2022 (E)
3.17
landing impact sound pressure level difference
landing

difference of the normalized landing impact sound pressure levels of the reference landing rigidly

connected to the reference wall and isolated
ΔLL −L (6)
landing n0,landing n,landing
Where

L is the normalized impact sound pressure level for the rigidly connected reference

n0,landing
landing;

L is the normalized impact sound pressure level for the isolated reference landing.

n,landing
Note 1 to entry: ΔL is expressed in decibels.
landing

Note 2 to entry: The impact sound pressure level difference for landing ΔL describes the improvement in

Landing

impact sound insulation by isolating elements in comparison to the rigid connection. The test procedure is described

in Annex A.
3.18
Flight impact sound pressure level difference
flight

difference of the normalized flight impact sound pressure levels of the reference flight rigidly connected

to the reference landing and isolated
ΔLL −L (7)
flight n0,flight n,flight
Where

L is the normalized impact sound pressure level for the rigidly connected reference

n0,flight
flight;

L is the normalized impact sound pressure level for the flight at the junction including

n,flight
the isolating element to be tested.
Note 1 to entry: ΔL is expressed in decibels.
flight

Note 2 to entry: The impact sound pressure level difference for flight, ΔL , is indicative of the sound insulation

flight

improvement for flights due to the installation of isolating elements as compared to the level at rigidly connected

flights. The test procedure is described in Annex A.
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4 Principle of the method(s)

NOTE Three different configurations corresponding to different measuring procedures are considered.

4.1 Horizontal transmission; case of isolated heavy landings or lightweight stairs

connected to walls
Key
1 Reference wall
2 Isolated reference landing
3 Lightweight stair

Figure 1 — Procedure for measuring the impact sound pressure level reduction of isolated

heavy landings (top) or lightweight stairs (bottom) connected to walls; the arrow represents the

excitation source

The principle of the method (Figure 1) consists of measuring in the receiving room the normalized impact

sound pressure level Ln0,wall of the bare wall, and then the impact sound pressure level Ln,landing of the

of the lightweight stair connected to the wall.
isolated landing or the impact sound pressure level Ln,stair
The impact sound pressure level reduction is obtained as:
ΔL = L – L
landing n0,wall n,landing
ΔL = L – L
stair n0,wall n,stair

For measuring the impact sound of the isolated landing or the lightweight stair, the ISO tapping machine

is used as excitation source; for measuring the impact sound of the wall, the indirect method defined in

prEN 12354-5:2022, Annex B, is used, which requires an instrumented impact hammer or an

electromagnetic shaker as excitation source.
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4.2 Horizontal transmission; case of isolated heavy flights of stairs connected to heavy

landings
Key
1 Reference wall
2 Non-isolated reference landing
3 Isolated reference flight of stairs
Figure 2 — Procedure for measuring the impact sou
...

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