LGAI Technological Center, S.A.

(APPLUS)
Campus de la UAB
Ronda de la Font del Carme, s/n
E - 08193 BELLATERRA (Barcelona)
T +34 93 567 20 00
F +34 93 567 20 01
www.appluslaboratories.com
9/LE766

Bellaterra: 26th of April, 2019

File number: 19/19154-550
Test petitioner: BEKA SPORT Zeminleri Ins. Mad. Koz. San. ve Dis Tic. LTD. STI.
Altunizade Mahallesi, Kisikli Cad.
Tekinak is Merkezi No:3 D:8, 34662
Uskudar - Instanbul (Turkey)

TEST REPORT

The present document is a translated copy of the Spanish test report 19/19154-550. This report is issued on the
3rd of May, 2019. In case of dispute, the valid document is the original Spanish version.

Requested test: Laboratory measurement of the improvement of impact sound

insulation, in accordance with the standards UNE-EN ISO 10140-
3:2011, UNE-EN ISO 10140-3:2011/A1:2015 and UNE-EN ISO 10140-
1:2016 (Annex H), by a floor covering composed of rubber tiles
referenced BEKA rubber tiles.

Dates of test: 19th of March, 2019

Test carried out by: Xavier Roviralta (Acoustics Laboratory - LGAI Technological Center)

Firmado por
XAVIER ROVIRALTA ROC
LGAI TECHNOLOGICAL CENTER
ES
Xavier Roviralta
Technical Manager of Acoustics
LGAI Technological Center S.A. (APPLUS)
Service Quality Assurance
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This document consists of 15 pages 1 of which are Annexes. - Page 1 -

LGAI Technological Center, S.A. inscrita en el Registro Mercantil de Barcelona, Tomo 35.803, Folio 1, Hoja nº B-266.627 Inscripción 1ª CIF A-63207492
File number: 19/19154-550 Page number: 2

1.- SCOPE OF THE TEST

The scope of this test is to determinate the improvement of impact sound insulation, in accordance
with the standards UNE-EN ISO 10140-3:2011, UNE-EN ISO 10140-3:2011/A1:2015 and UNE-EN
ISO 10140-1:2016 (Annex H), by a floor covering composed of rubber tiles referenced BEKA
rubber tiles.

2.- MEASUREMENT EQUIPMENT

The equipment used in the test is the following:

 Spectrum analyser id. number: 170701 (Bruel&Kjaer mod. Pulse LAN-XI)

 Microphone calibrator id. number: 103032 (Bruel&Kjaer mod. 4231)
 Diffuse field microphone id. number: 103131 (Bruel&Kjaer mod. 4943)
 Rotating microphone boom id. number: 170692 (Ntek mod. MB-01)
 Standard tapping machine id. number: 103187 (CESVA mod. MI005) with casing id.
number: 170642
 Sound source id. number: 103098 (AVM mod. DO12)
 Noise generator with power amplifier id. number: 103125 (CESVA mod. AP600)
 Equalizer id. number: 170092 (INTER mod. EQ-9231)
 Thermo-hygrometer and barometer id. number: 170680 (PCE mod. THB-40)
 Tape measurer id. number: 103095 (Stanley mod. Powerlock)
 Distance meter id. number: 170136 (Stanley mod. TLM130)
 Set of weights id. number: 170564 (12 weights are used)

3.- TEST PROCEDURE AND EVALUATION

3.1. TEST METHOD

The test is carried out in accordance with the standards UNE-EN ISO 10140-3:2011 “Measurement
of impact sound insulation” together with its Modification 1 UNE-EN ISO 10140-3:2011/A1:2015
and UNE-EN ISO 10140-1:2011 Annex H “Floor coverings. Improvement of impact sound
insulation”, which are part of the set of standards UNE-EN ISO 10140 “Laboratory measurement of
sound insulation of building elements”.
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The test procedure consists on measuring the impact sound insulation of a basic construction
(reference floor) with or without the lining to be tested. Both measurements are carried out
according to the standards UNE-EN ISO 10140-3:2011 and UNE-EN ISO 10140-3:2011/A1:2015.

Two vertically adjacent rooms are used; the upper being designated the ‘source room’ and the
lower the ‘receiving room’. The test element is mounted in the opening between those rooms. The
test procedure is based on measuring for every frequency band within the range of study,
customarily from 100 Hz to 5000 Hz, the sound pressure level in the ‘receiving room’ when exciting
the upper floor with a standardized tapping machine placed in at least four different positions. The
equivalent absorption area in the receiving room is calculated from the reverberation time
measurements.

Schematic drawing of the test rooms

Sound pressure level and reverberation time measurements are carried out according to the
standard UNE-EN ISO 10140-4:2011.
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The background noise level shall be at least 6 dB (and preferably more than 15 dB) below the level
of signal and background noise combined at each frequency band. If the measured sound pressure
level does not fulfil this condition, the corrections indicated in section 4.3 of the standard UNE-EN
ISO 10140-4:2011 shall be applied.

At each frequency band, the normalized sound pressure level, Ln, is calculated increasing the
impact sound pressure level, Li, by a correction term which depends on the reverberation time and
the receiving room volume:

A [dB]
Ln  Li  10 Log ( )
A0

where:

 Li is the impact sound pressure level, corrected by the background noise if necessary, at
each frequency band;
 A0 is the reference equivalent absorption area, 10 m²;
 A is the measured equivalent absorption area of the receiving room, defined in the UNE-
EN ISO 10140-4:2011, and calculated by:

0.16 V
A [m2]
T

where:

 V is the receiving room volume, in m3;

 T is the reverberation time in the receiving room, in seconds. It is defined as the time
required for the sound pressure level in a room to decrease by 60 dB after the sound
source has stopped.

3.2. IMPROVEMENT OF IMPACT SOUND INSULATION

The standard UNE-EN ISO 10140-1:2011 “Application rules for specific products” specifies, in
Annex H “Floor coverings. Improvement of impact sound insulation” the procedure to measure the
improvement of impact sound insulation of floor coverings intended to improve the impact sound
insulation of floors.
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The quantity determined is the improvement of impact sound insulation, ∆L, in decibels,
defined as the reduction in normalized impact sound pressure level resulting from the installation
of the test floor covering on the reference floor:

L  Ln0 - Ln [dB]

where:

 Ln0 is the normalized impact sound pressure level of the reference floor without the floor
covering;
 Ln is the normalized impact sound pressure level of the reference floor with the floor
covering.

The standard reference floors are defined in the standard UNE EN-ISO 10140-5:2011 Annex C;
one heavyweight reference floor and three lightweight reference floors. Commonly the
heavyweight reference floor is the floor used, which consist of a reinforced concrete slab of
thickness 120+40-20 mm, preferably 140 mm for the construction of new laboratories. It should be
homogeneous and shall be of uniform thickness.

3.3. PROCEDURE FOR EVALUATING SINGLE-NUMBER QUANTITIES FOR IMPACT SOUND

INSULATION RATING

The method of measurement gives values for the impact sound insulation which are frequency
dependent. The standard ISO 717-2 normalizes a method whereby the frequency-dependent
values of impact sound insulation can be converted into a single number characterizing the
acoustical performance.

From the curve of impact sound it is possible to obtain the global weighted value comparing that
curve with the reference spectrum (given in table 3.1) defined between 100 and 3150 Hz:

Freq. (Hz) 100 125 160 200 250 315

Ref. 62 62 62 62 62 62
Freq. (Hz) 400 500 630 800 1000 1250
Ref. 61 60 59 58 57 54
Freq. (Hz) 1600 2000 2500 3150 4000 5000
Ref. 51 48 45 42 - -

Table 3.1: Reference values for impact sound for every frequency band
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The global weighted value is the value, in decibels, of the reference curve at 500 Hz after shifting
it in accordance with the following procedure.

To evaluate the results of a measurement (Ln, for example), the reference spectrum is shifted in
increments of 1 dB 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 for that frequency band.

By the appliance of this evaluation to the normalized impact sound pressure level, Ln, the
weighted normalized impact sound pressure level, Lnw, is obtained.

3.4. PROCEDURE FOR EVALUATING THE WEIGHTED REDUCTION IN IMPACT SOUND PRESSURE
LEVEL, Lw

To calculate the weighted reduction in impact sound pressure level, ∆Lw, it is necessary to
relate the measured ∆L levels with a reference floor. The reference floor is defined by the values
for the normalized impact sound pressure level, Ln,r,0, given in table 3.2:

Freq. (Hz) 100 125 160 200 250 315

Ref. 67 67,5 68 68,5 69 69,5
Freq. (Hz) 400 500 630 800 1000 1250
Ref. 70 70,5 71 71,5 72 72
Freq. (Hz) 1600 2000 2500 3150 4000 5000
Ref. 72 72 72 72 - -

Table 3.2: One-third octave band values of the reference curve

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

The weighted reduction of impact sound pressure level, ∆Lw, is calculated according to the
following equations:

Ln, r  Ln, r,0 - L

[dB]
LW  Ln, r,0,W - Ln, r,w  78 dB - Ln, r,w

where:

 Ln,r is the calculated normalized impact sound pressure level of the reference floor with
the floor covering under test;
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 Ln,r,0 is the defined normalized impact sound pressure level of the reference floor (see
Table 3.2);
 L is the reduction in impact sound pressure level measured in accordance with the
standard UNE-EN ISO 10140-1:2016;
 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 in accordance with section 4.3.1 of the standard ISO 717-2 (see section
3.3).

The reduction in impact sound pressure level measured on a concrete floor slab as defined in the
Annex H of the standard UNE-EN ISO 10140-1:2011 and the single-number quantity ∆Lw may only
be used in connection with similar types of massive floors (concrete, hollow concrete, hollow bricks
and similar); it is not appropriate for use on other types of construction.

3.5. CALCULATION OF THE SPECTRUM ADAPTATION TERMS

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 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.

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 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.
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The results of a measurement of Ln in one-third-octave bands in the frequency range 100 Hz to

2500 Hz are added up on an energetic basis resulting the Ln,sum. The spectrum adaptation term CI
is calculated from the following equation:

C I  Ln, sum - 15 - Ln,w [dB]

The spectrum adaptation term is calculated with decimal precision and rounded to an integer
afterwards.

A spectrum adaptation term for flat response for the impact sound reduction may be determined
and stated. This spectrum adaptation term CI is calculated from:

C I  C I,r,0 - C I,r [dB]

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 (CI,r,0 = - 11 dB).

3.6. UNCERTAINTY OF RESULTS

The uncertainty associated to the test has been calculated and is available to the petitioner. The
expanded uncertainty has been calculated as the typical measurement uncertainty multiplied by a
coverage factor k=2, which for a normal distribution corresponds to a coverage probability of
approximately 95%.

4.- REFERENCE FLOOR AND STANDARD TAPPING MACHINE DESCRIPTIONS

The basic element is a heavyweight reference floor in accordance with the requirements in the
Annex C of the standard UNE-EN ISO 10140-5:2011. It is a reinforced concrete slab of thickness
140 mm, homogeneous and of uniform thickness.

The tapping machine is a standard tapping machine that fulfils the requirements of the standard
UNE-EN ISO 10140-5:2011 Annex E.
File number: 19/19154-550 Page number: 9

5.- TEST ELEMENT DESCRIPTION

The main characteristics of the test element are listed below (commercial references are provided
by the client). LGAI Technological Center, S.A. is not responsible for the documentation and/or
information provided for the petitioner.

Type of test element Floor covering

Manufacturer BEKA SPORT Zeminleri Ins. Mad. Koz. San. ve Dis Tic. LTD. STI.

Model / Reference BEKA rubber tiles

Supplied by BEKA SPORT Zeminleri Ins. Mad. Koz. San. ve Dis Tic. LTD. STI.

Date received 7th of March, 2019

Area, S, of test element 12,71 m2 – 4,10 x 3,10 m

(test opening)

Test element thickness 160 mm (reference floor: 140 mm; floor covering: 20 mm)

Mass per unit area, m

≈368 kg/m2 (reference floor: ≈350 kg/m2; floor covering: 18 kg/m2)
(estimated)

Type of mounting In the opening of a concrete frame (test frame)

Composition - Reference floor: Heavyweight reference floor, heavyweight standard

floor in accordance with the Annex C of standard EN ISO 10140-5.
Reinforced concrete slab of thickness 140 mm
- Floor covering 4,4x3,4 m composed of (from bottom to top):
- Tiles made of EPDM and recycled SBR Rubber with MDI
polyurethane adhesive of nominal dimensions 1000x1000 mm
and 20 mm of thickness. Nominal density material of 970 kg/m3
(provided by the test petitioner) and 18 kg/m2 of mass per unit
area.

Test element sealing High density mastic

Test arrangement In accordance with the specifications in Section 6 of UNE-EN-ISO

10140-3:2011 and Annex H of the UNE-EN-ISO 10140-1:2011

Type of floor covering Category II, according to Annex H of the EN ISO 10140-1

Test element assembling

(carried out by/date)
Applus Laboratories - LGAI Technological Center /18th of March, 2019

Mounting type See figures 1 and 2

File number: 19/19154-550 Page number: 10

The technical information of the test element, provided by the test petitioner, is attached in the
Annex.

In order to determinate the improvement of impact sound insulation provided by the floor covering
two measurements are carried out: the measurement of the standard reference floor without the
floor covering (22/02/2019) and the measurement of the standard reference floor with the floor
covering (19/03/2019).

Images 1 to 4 Details of BEKA rubber tiles

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Images 5 to 12 Installation and sealing of the floor covering on the reference floor

Images 13 Test specimen installed and ready for the test

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The following figures show the sections of the tested constructions.

Figures 1 and 2 Reference floor and reference floor with the floor covering
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6.- TEST CONDITIONS

6.1. STANDARD REFERENCE FLOOR (heavyweight reference floor in accordance with UNE-EN
ISO 10140-5:2011 Annex C)

Source Room Receiving Room

Room volumes 52,9 m3 62,9 m3

Temperature: 20,8 ±0,6 ºC Temperature: 21,1 ±0,6 ºC

Climatic conditions Humidity: 52,2 ±4,7 % Humidity: 50,4 ±4,7 %

Static pressure: 1012,6 ±1,3 hPa

6.2. STANDARD REFERENCE FLOOR + FLOOR COVERING

Source Room (Note 1) Receiving Room

Room volumes 52,6 m3 62,9 m3

Temperature: 20,2 ±0,6 ºC Temperature: 19,9 ±0,6 ºC

Climatic conditions Humidity: 61,3 ±4,7 % Humidity: 60,1 ±4,7 %

Static pressure: 1007,1 ±1,3 hPa

Note 1: The floor covering (test element) is located into the source room.
File number: 19/19154-550 Page number: 14

7.- RESULTS

9/LE766

Reduction of impact sound pressure level in accordance with the Standard ISO 10140 (all parts)

Client: BEKA SPORT Zeminleri Ins. Mad. Koz. San. ve

Dis Tic. LTD. STI.
Test element:
Floor covering composed of rubber tiles referenced BEKA
rubber tiles, installed on a heavyweight reference floor
(standard reference floor in accordance with UNE-EN ISO
10140-5:2011 Annex C).
Mass per unit area, m, estimated: 368 kg/m2 (18 kg/m2
floor covering)
Area, S of the test element: 12,71 m2 (4,10 x 3,10 m)
Dates of test: 19/03/2019 (reference floor 22/02/2019)
Reduction of transmitted impact sound pressure level, L
60
Frequency
Ln,0 (dB) L (dB)
(Hz)
55
100 56,5 4,6
125 59,3 2,8 50

160 70,2 8,6

45
200 71,4 9,6
250 75,2 12,8 40
315 75,0 20,3
400 76,2 24,1 35

500 77,0 27,5

L (dB)

30
630 76,0 28,8
800 76,0 32,3 25
1000 75,6 36,2
1250 75,4 39,7 20

1600 75,5 45,8

15
2000 75,0 52,8
2500 74,8 57,5 10
3150 74,8 56,1
5
4000 73,5 59,5
5000 71,9 53,3
0
100
125
160
200
250
315
400
500
630
800
1000
1250
1600
2000
2500
3150
4000
5000

Hz

ISO 717-2 Ln,0,w = 81 dB Ln,w = 52 dB Ln,r,w = 52 dB Lw = 26 dB

CI,0 = -9 dB CI = 1 dB CI,r = 1 dB CI = -11 dB

The results reported in this document relate only to the sample, product or item delivered to LGAI Technological Center the
appointed day having been tested under the conditions established in this document.
File number: 19/19154-550 Page number: 15

ANNEX. TECHNICAL INFORMATION PROVIDED BY THE TEST PETIOTIONER