Test report BOEN Elastflex 20db eng 2013

HEALTH AND COMFORT DIRECTION

Acoustics Test Laboratory

TEST REPORT N° AC13-26045109/1 CONCERNING A WOOD FLOOR

The accreditation by the COFRAC Laboratory Section attests to the technical competence of the laboratory only for the tests covered by the accreditation.

This test report certifies only the characteristics of the object submitted for testing and does not prejudge the characteristics of similar products. So it does not constitute a product certification in the sense of Article L 115-27 to L 115-32 and R115-1 to R115-3 of the Consumer Code modified by the law n° 2008-776 of the 4rth of August,2008 article 113.

If this report is being issued via an electronic channel and/or on physical electronic media, only the paper version of the report signed by CSTB shall be deemed authentic in case of litigation. This report in paper form is kept at CSTB for a minimum period of 10 years.

The reproduction of this test report is only authorised in its integral form.

It comprises fifteen pages with 9 appendix pages.

REQUESTED BY : BOEN PARKETT DEUTSCHLAND GmbH & Co KG Industriestrasse 41 D-23879 MOLLN ALLEMAGNE

N/Réf. : BR-70038776 26045109

FF/GA

2/15

TEST REPORT N° AC13-26045109/1

Tramecofrac.dot, rév 12 du 29/04/13 R13-26045109-1_BOEN-ANG

TEST SCOPE

Determination of the improvement of impact sound insulation L, of the standardized level of shock

noise Ln,e and of the airborne sound insulation R about a wood floor set on underlay.

REFERENCE TEXTS

The measurements were carried out:

- NF EN ISO 10140-1 (2013), NF EN ISO 10140-3 (2013), NF EN ISO 10140-4 (2013), NF EN ISO 10140-5 (2013), and NF EN 20140-2 (1993) about the determination of the improvement of impact sound insulation L, supplemented by the standard NF EN ISO 717/2 (1997) and

associated amendments,

- NF S 31-074 about the determination of the standardized level of shock noise Ln,e, supplemented by the standard NF EN ISO 717/2 (1997),

- NF EN ISO 10140-1 (2013), NF EN ISO 10140-2 (2013), NF EN ISO 10140-4 (2013), NF EN ISO 10140-5 (2013), and NF EN 20140-2 (1993) about the determination of the airborne sound insulation R, supplemented by the standard NF EN ISO 717/1 (1997) and associated amendments,

- NF EN 29052-1 (1992) for the calculation of dynamic stiffness s' of underlay.

TEST SPECIMEN

Date of delivery : July 26th 2013 Origin and installation : requester

SUMMARY LIST OF TESTS

Test N° Object submitted for testing Test type

1 Wood floor ELASTFLEX STADIUM on underlay METZELER L

2 Wood floor ELASTFLEX STADIUM on underlay METZELER Ln,e

3 Wood floor ELASTFLEX STADIUM on underlay METZELER R

4 Base floor only R

Prepared at Marne-la-Vallée, October 31th 2013

Responsible for the tests

Frédéric FALLAIS

Head of Division

Jean-Baptiste CHÉNÉ

3/15



DESCRIPTION AND INSTALLATION OF A WOOD FLOOR

Tests Date Station

1, 2 & 3 01/08/13 DELTA

REQUESTER BOEN

MANUFACTURER BOEN (wood floor), METZELER (underlay)

NAME ELASTFLEX STADIUM

FITNESS FOR PURPOSE Unchecked

DESCRIPTION (The dimensions are given in mm)

Base floor - Nature: concrete reinforced floor with sill - Dimensions: 4200 x 3600 x 140

Underlay

- Reference: METZOPOR V16 (METZELER) - Nature: Polyurethane foam - Thickness: 15 - Measured mass per area: 1.8 kg/m² - Presentation: rolls of 2240 x 1510 - Manufacturing date: July 2013 - Dynamic stiffness under 8 kg load: s’ = 19 MN/m3

Load distribution

layer

- Reference: ELASTFLEX STADIUM (BOEN) - Nature: Plywood - Measured mass per area: 14.6 kg/m² - Boards dimensions: 2500 x 100 x 9

Wood floor

- Reference: ELASTFLEX STADIUM (BOEN) - Nature:

top layer with a 3.5 thickness made of massive wood

middle layer with a 8.8 thickness made of softwood

lower layer with a 1.7 thickness made of softwood - Measured mass per area:7.2 kg/m² - Boards dimensions: 2200 x 209 x 14

Boards assembly Fitted together with a shim and stapled on each plywood strip.

INSTALLATION

The underlay is fitted on the base floor by a floating mounting and with staggered joints. The strips are set by the same mounting type that the underlay and perpendicular to it. The length between axes of strips is 137.5. A polyane film with an approximately 0,05 thickness is laid on the system described above. The wood floor boards are fitted together with a shim and stapled on each strips. The wood floor is set perpendicularly to the strips. A length of 15 is conserved in peripheral of the system.

MEASUREMENTS CONDITIONS

Emission room Reception room Temperature : 29.5 °C Relative humidity : 51 %

Temperature : 25.5 °C Relative humidity : 62 %

4/15



IMPROVEMENT OF IMPACT SOUND INSULATION L OF A WOOD FLOOR

CD62

Test Date Station

1 01/08/13 DELTA

REQUESTER BOEN

UNDERLAY WOOD FLOOR

MANUFACTURER METZELLER BOEN

NAMES METZOPOR V16 ELASTFLEX STADIUM

SPECIFICATIONS

Nature Polyurethane foam Middle layer made of softwood with top layer

and lower layer Thickness in mm 15 14

Surface mass in kg/m² 1.8 7.2

Dynamic stiffness in MN/m3 19 under 8 kg load

Installation Set on concrete base floor Set on the underlay and strips


RESULTS

f10012516020025031540050063080010001250160020002500315040005000

Hz

L

dB

1,0-6,1-7,03,41,93,816,223,624,136,631,143,543,150,850,260,562,462,36

() : valeur corrigée/corrected value. () : limite de poste/station limit.

Lw = 20 dB Pour information / For information:

Cl, = -12 dB

L = 23 dB(A)

60

50

40

30

20

10

0

-10125 250 500 1k 2k 4k

f en / in Hz

L en / in dB

5/15



STANDARDIZED LEVEL OF IMPACT NOISE Ln,e

EMITTED BY A WOOD FLOOR CD62

Test Date Station

2 01/08/13 DELTA

REQUESTER BOEN

UNDERLAY WOOD FLOOR



SPECIFICATIONS







RESULTS

f10012516020025031540050063080010001250160020002500315040005000

Hz

Ln,e

dB

8,389,784,883,883,486,382,281,382,382,388,289,182,082,186,180,971,670,47


Ln,e,w = 87 dB Pour information / For information:

Cl = -6 dB

Ln,e = 92 dB(A)

100

90

80

70

60

50

40

30125 250 500 1k 2k 4k

f en / in Hz

Ln,e en / in dB

6/15



AIRBORNE SOUND INSULATION R

OF A WOOD FLOOR AD62

Tests Date Station

3 & 4 01/08/13 DELTA

REQUESTER BOEN

UNDERLAY WOOD FLOOR



SPECIFICATIONS







RESULTS Test : Base floor + underlay + wood floor (on strips) Test : Base floor only

Code

f

100

125

160

200

250

315

400

500

630

800

1k

1,25k

1,6k

2k

2,5k

3,15k

4k

5k

Hz

R

dB

4,72

9,62

4,83

7,24

1,05

3,65

2,56

2,96

2,37

1,57

2,77

2,08

2,38

7,58

7,58

1,58

5,68

7,78

R

dB

7,53

4,43

9,73

4,04

2,34

9,54

4,84

3,15

5,65

7,95

7,16

5,26

9,56

3,86

0,07

8,27

2,57

7,67

(79,8)

(82,1)

(83,9)

(101,0)

(101,0)


Rw (C;Ctr) = 56(-5;-12) dBPour information / For information:RA = RW+C = 51 dB RA,tr = RW+Ctr = 44 dB

Rw (C;Ctr) = 54(-1;-6) dBPour information / For information:RA = RW+C = 53 dB RA,tr = RW+Ctr = 48 dB

90

80

70

60

50

40

30

20

R en / in dB

125 250 500 1k 2k 4k

f en / in Hz

7/15



APPENDIX 1 – STANDARDIZED LEVEL OF IMPACT NOISE Ln OF THE BASE FLOOR

Date Station

02/08/13 DELTA

RESULTS

f10012516020025031540050063080010001250160020002500315040005000

Hz

Ln

dB

8,569,662,178,769,760,078,964,968,760,967,963,078,074,177,178,171,174,07


Ln,w = 77 dB Pour information / For information:

Cl = -11 dB

Ln = 82 dB(A)

80

70

60

50

40

30

20

10125 250 500 1k 2k 4k

f en / in Hz

Ln en / in dB

8/15



APPENDIX 2

METHOD OF EVALUATION AND EXPRESSION OF THE RESULTS

IMPROVEMENT OF THE IMPACT SOUND INSULATION L

Determination of the improvement of impact sound insulation by the floor coverings on a heavy standardized concrete floor with a standardized tapping machine. The measurements must be run into a test laboratory.

Method of evaluation : NF EN ISO 10140-3 (2013)

Measurement by 1/3 of octave, from 100 to 5000 Hz: - Of the impact sound level Li into the reception room - Of the background noise level - Of the reverberation time of the reception room T

Calculation of the standardized impact sound level Ln in dB for any 1/3 of octave: Ln = Li + 10 log (A0/A)

Li : impact sound level measured into the reception room and eventually corrected by the background sound level

A0 : Reference area equal to 10 m² in laboratory A : Equivalent absorption area in the reception room

in m² A = (0,16 x V)/T with V the volume of the

reception room in m3 and T the reverberation time of this room in s

Calculation of the improvement of the impact sound insulation L in dB for any 1/3 of octave:

ΔL = Ln0-Ln

Ln0 : Standardized impact sound level of the standardized heavy concrete floor without any floor covering,

Ln : Standardized impact sound level of the standardized heavy concrete floor with the floor covering.

Expression of the results:

Calculation of the of the standardized impact sound level of the reference floor covered by the floor covering submitted to the test in 1/3 of octave from 100 to 3150 Hz: Ln,r = Ln,r,o – ΔL

- Ln,r,o : Impact sound level of the reference floor, - ΔL : Improvement of the impact sound level

Calculation of the ΔLw:

ΔLw = Ln,r,o – Ln,r,w = 78 dB – Ln,r,w.

For the calculation of the Ln,r,w, consideration of the Ln,r by 1/3 of octave from 100 to 3150 Hz with a 1/10th of dB precision.

Vertical movement of a reference curve by jump of 1 dB until the sum of the unfavourable distances is the biggest while remaining lower or equal to 32,0 dB.

Ln,r,w is the value given then by the curve of reference to 500 Hz.

9/15



APPENDIX 2


CORRECTED IMPACT SOUND PRESSION LEVEL Ln,e

Determination of the impact sound level into a room by the floor coverings put into this room. The measurement must be realized in a laboratory and the tapping machine is standardized.

Method of evaluation : NF S 31-074 (2002)

Measurement by 1/3 octave, from 100 to 5000 Hz: - of the impact sound level Li in the reception room - of the background noise - of the reverberation time of the reception room T

Calculation of the standardized impact sound level Ln in dB for any 1/3 octave: Ln = Li + 10 log (A0/A)

Li : Impact sound level measured into the reception room and obviously corrected by the background noise

A0 : Reference area equal to 10 m² in laboratory

A : Equivalent absorption area in the emission room in m², A = (0,16 x V)/T with V the volume of the reception room in m3 and T the reverberation time of the same room in s

Calculation of the corrected impact sound level Ln,e in dB for any 1/3 octave :

Ln,e = 10 log ( 10(LHR

/10)-10 (LBR

/10) + 10((LBR+Ln,r,0 – LD)/10))

LH0 : Measured standardized impact sound level of the concrete floor on the top

LB0 : Measured standardized impact sound level of the concrete floor down LHR : Measured standardized impact sound level with the floor covering, on

the top LBR : Measured standardized impact sound level with the floor covering,

down LR : standardized impact sound level due to the relative movement of the

floor covering , on the top LDR : standardized impact sound level due to the relative movement of the

concrete floor, on the top and down LD : standardized impact sound level of the concrete floor, on the top and

down Ln,r,0 : standardized impact sound level of the reference concrete floor

Expression of results : Calculation of the overall weighted index Ln,e,w according to NF EN ISO 717-2 (1997)

On the values of Ln,e for any 1/3 octave between 100 and 3150 Hz with a 1/10 dB precision. Vertical moving of the reference curve by 1 db step until the sum of the unfavourable differences is the biggest while remaining lower than 32 dB.

Ln,e,w is than the value given by the reference curve at 500 Hz.

10/15



APPENDIX 2


AIRBORNE SOUND INSULATION R

Method of evaluation : NF EN ISO 10140-2 (2013)

The standard NF EN ISO 140-3 (1995) is the method of evaluation of the airborne sound insulation of the building elements like walls, floors, doors, windows, façade element, façades, …

The measurement must be run into a test laboratory without any flanking transmissions. The test facility is composed of two rooms : One fixed room where we put onto the concrete frame with the sample to be tested and a moving box, creating a couple “ emission room – reception room ». Those rooms and the concrete frame are separated (neoprene seals) and are in accordance to the standard NF EN ISO 140-1 (1997). The conception of rooms (box in the box) gets a strong soundproofing towards the outside and allows to measure very weak levels of background noise.

Measurement by 1/3 of octave, from 100 to 5000 Hz :

- Of the background noise level in the reception room LBdF

- Of the insulation: LE – LR

- Of the reverberation time of the reception room T

Calculation of the airborne sound insulation R in dB for any 1/3 of octave :

R = LE – LR + 10 log (S/A)

LE : Sound level in the emission room in dB LR : Sound level in the reception room , corrected with the background sound in dB S : surface of the sample to be tested in m² A : Equivalent absorption area in the reception room in m²

A = (0,16 x V)/T with V the volume of the reception room in m3 and T the reverberation time of this room in s.

The more R is high, the more insulating the element is.

Expression of the results: Calculation of the overall weighted index Rw(C;Ctr) according to the standard NF EN ISO 717-1 (1997)

Consideration of the values of R by third(third party) of octave between 100 and 3150 Hz with a precision in the 1/10th of dB.

Vertical movement of a reference curve by jump of 1 dB until the sum of the unfavourable distances is the biggest while remaining lower or equal to 32,0 dB.

Rw dB is the value given then by the curve of reference to 500 Hz. The terms of adaptation to a spectre (C and Ctr) are calculated by means of reference spectres to obtain:

RA,tr = RW + Ctr dB The terms of adaptation to a spectrum (C and Ctr) are calculated with reference spectrum to obtain:

The insulation towards noises of airport or industrial neighbourhood, activities: RA = Rw + C in dB

The insulation towards the noise of infrastructure of ground transport :

RA,tr = RW + Ctr in dB

11/15



ANNEXE 3 / APENDIX 3 –

APPAREILLAGE/EQUIPMENT

POSTE DELTA

DELTA STATION

Salle d'émission / Emission room : DELTA 3

DÉSIGNATION DÉSIGNATION

MARQUE BRAND

TYPE TYPE

N° CSTB

Chaîne microphonique Microphone network

Bruël & Kjær Microphone 4166

CSTB 01 0210 Bruël & Kjær Préamplificateur / Pre-amplifier 2669

Bras tournant Rotating arm

Bruël & Kjær 3923 CSTB 97 0166

Amplificateur Amplifier

LAB GRUPPEN LAB1000 CSTB 97 0197

Source Speaker

CSTB-PHL AUDIO Cube CSTB 97 0185

Source Speaker

CSTB-PHL AUDIO Cube CSTB 97 0186

Machine à choc / Tapping machine


Salle de réception / Reception room : DELTA 1


MARQUE BRAND

TYPE TYPE

N° CSTB

Chaîne microphonique Microphone network

Bruël & Kjær Microphone 4166

CSTB 01 0211 Bruël & Kjær Préamplificateur / Pre-amplifier 2669

Bras tournant Rotating arm


Amplificateur Amplifier

CARVER PM600 CSTB 91 0117

Source Speaker

CSTB-ELECTRO VOICE Pyramide CSTB 97 0204

Salle de commande / Control room


MARQUE BRAND

TYPE TYPE

N° CSTB

Analyseur temps réel Real Time Analyser


Micro-ordinateur Microcomputer

DELL OPTIPLEX GX 270

Calibreur Calibrator


12/15



APPENDIX 4 – DRAWING OF THE TESTS STATION DELTA STATION

13/15



APPENDIX 5 – DETERMINATION

OF THE DYNAMIC STIFFNESS S' OF AN UNDERLAYER

Date Station

12/09/13 SIGMA

REQUESTER, MANUFACTURER BOEN

RESULTS

Numéro d'essai : Date de scellement: 11/09/2013

Nom du client : Date de l'essai: 12/09/2013

Désignation du produit :

Appellation : Température en °C : 21

Type: Humidité relative en % : 57

Dossier AC06-???

IDENTIFICATION

EPROUVETTER13-26045109/1-A R13-26045109/1-B R13-26045109/1-C MOYENNE Incertitude

Masse surfacique

de la charge

appliqué sur le

produit en kg/m²

197 195 194 195 ± 1,99

Epaisseur du produit

en mm15,0 15,0 15,0 15,0 ± 0,57

Epaisseur de la partie

poreuse du produit

en mm

15,0 15,0 15,0 15,0 ± 0,57

fr

en Hz39,5 38,5 40,5 39,5 ± 1,78

h

en %16,4 17,1 24,6 19,4 ± 1,51

S't en

MN/m3 12,1 11,4 12,5 12,0 ± 0,78

S'a en

MN/m3 7,4 7,4 7,4 7,4 ± 0,41

S' en

MN/m3 19,5 18,8 19,9 19 ± 1,19

FICHE RESULTAT RAIDEUR DYNAMIQUE

Sous-couche

Metzopor V16

Mousse

Essai sans vaseline sous 8 kg

R13-26045109/1

BOEN

ESSAI DE RAIDEUR DYNAMIQUE

14/15



APPENDIX 6 – MEASUREMENT FACILITY

FOR THE DYNAMIC STIFFNESS

DESIGNATION BRAND TYPE CSTB N°

Balance Precia Quartz 3 CSTB 9300131

Comparator Digico CSTB 06 0168

Thermo - hygrometer Testo Therm Thermo – hygrometer 6100 CSTB 91 0110

Analyser Bruël & Kjær PULSE CSTB 04 1501

Head of impedance Bruël & Kjær 8001 CSTB 05 0371

Load amplifier Bruël & Kjær 2635 CSTB 04 1502

Load amplifier Bruël & Kjær 2635 CSTB 04 1503

Vibrations excitator Bruël & Kjær 4809 CSTB 85 0008

Power amplifier Bruël & Kjær 2718 CSTB 05 0369

Calibrator Bruël & Kjær 4294 CSTB 89 0064

PRINCIPLE:

The determination of the system mass / spring / mass resonance frequency fr allows to obtain the apparent dynamic stiffness per unit of area s't of the sample according to the equation:

t

t

'm

's

2

1 fr

with: m't the total weight per unit of area used during the test

The measurement setup used by the laboratory is constituted by a Pulse analyser system which manages an excitation signal said "white noise", amplified by a power amplifier before being transmitted to an electro-dynamic shaker. An impedance head measures the injected force injected as well as the velocity of the system mass / spring / mass. These signals are then amplified by pre-amplifiers before being passed on to the Pulse analyser system to be treated and analyzed.

Drawing of principle

15/15



APPENDIX 7 – EXPRESSION OF THE RESULTS

- Dynamic stiffness per unit of area s', in MN/m3:

s' = s't + s'a

with: s't : apparent dynamic stiffness per unit of area of the sample, in MN/m3

s’t = ²²4 rt fm

where: tm is the weight per unit of area of the system mass loading the sample in kg/m²,

rf is the resonance frequency in Hz of the system Mass – Spring – Mass

s'a : dynamic stiffness per unit of area of the captive gas, in MN/m3

s’a =.td

Po

where: Po is the atmospheric pressure, in MPa

td the thickness of the porous part of the sample under the static load, in mm

is the material porosity

= td

M

1

where: M is the weight per unit of area of the fiber material of the sample, in kg/m² is the volumic weight of the solid part of the fiber material, in kg/m3

- Loss factor, in % :

h = 100.f

f

r

with f =rf

ff 12

END OF REPORT

1f 2fF (Hz)

dB

-3dB

rf

Test report BOEN Elastflex 20db eng 2013

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