Müller-BBM GmbH
Robert-Koch-Str. 1182152 Planegg bei München
Telephone +49(89)85602 0
Telefax +49(89)85602 111
www.MuellerBBM.de
Dipl.-Ing. (FH) Dominik Reif
Telephone +49(89)85602 3566
Dominik.Reif@mbbm.com
2018-05-15
M102794/29 RFD/STY

Fabric of Création Baumann
Measurement of the airborne soundinsulation of curtain constructions
according to DIN EN ISO 15186-1/-3\\s-muc-fs01\AlleFirmen\M\Proj\102\M102794\M102794_29_PBE_1E.DOCX : 30. 05. 2018

Test report No. M102794/29

Client:Création Baumann AG
Bern-Zürich-Strasse 23
4901 Langenthal
SWITZERLAND

Consultant:

Dipl.-Ing. (FH) Dominik Reif

Date of report:

2018-05-15

Delivery date of the test objects:

2017-07-15

Dates of tests:

2017-08-21 / 2017-08-22 / 2017-08-29 and2017-08-30 as well as 2017-09-01

Total number of pages:

In total 29 pages, thereof
8 pages of text,
13 pages of Appendix A,
2 pages of Appendix B and6 pages of Appendix C.

Müller-BBM GmbH
HRB Munich 86143
VAT Reg. No. DE812167190
Managing directors:
Joachim Bittner, Walter Grotz,
Dr. Carl-Christian Hantschk, Dr. Alexander Ropertz,
Stefan Schierer, Elmar Schröder

Table of contents
1

Task

3

2

References

33

Test setup and test objects

44

Test method

65Evaluation

6

6

Results

7

7

Remarks

8

Test certificates

Appendix B:

Photos of the test setups

Appendix C:

Description of the test method, the test facility andthe test equipment used\\s-muc-fs01\AlleFirmen\M\Proj\102\M102794\M102794_29_PBE_1E.DOCX : 30. 05. 2018

Appendix A:

M102794/29 RFD/STY
2018-05-15

Page 2

1 Task
On behalf of Création Baumann AG, Bern-Zürich-Strasse 23, 4901 Langenthal,
Switzerland, the intensity sound reduction index of curtain constructions was to be
determined in the window test facility according to DIN EN ISO 15186-1/-3 [6] [7].

2 References
This test report is based on the following documents:[1] DIN EN ISO 12999-1: Acoustics – Determination and application of measurement uncertainties in building acoustics – Part 1: Sound insulation. German
version September 2014
[2] DIN EN ISO 10140-1: Acoustics – Laboratory measurement of sound insulationof building elements – Part 1: Application rules for specific products. German
version December 2016[3] DIN EN ISO 10140-2: Acoustics – Laboratory measurement of sound insulationof building elements – Part 2. Measurement of airborne sound insulation,
German version December 2010[4] DIN EN ISO 10140-4: Acoustics – Laboratory measurement of sound insulationof building elements – Part 4: Measurement procedures and requirements.
German version December 2010\\s-muc-fs01\AlleFirmen\M\Proj\102\M102794\M102794_29_PBE_1E.DOCX : 30. 05. 2018[5] DIN EN ISO 10140-5: Acoustics – Laboratory measurement of sound insulationof building elements – Part 5: Requirements for test facilities and equipment.
German version September 2014 ( DIN EN ISO 10140-5:2010 + A1:2014)[6] DIN EN ISO 15186-1: Acoustics – Measurement of sound insulation in buildings
and of building elements using sound intensity measurements – Part 1:
Laboratory measurements. German version December 2003
[7] DIN EN ISO 15186-3: Acoustics – Measurement of sound insulation in buildings
and of building elements using sound intensity – Part 3: Laboratory measurements at low frequencies. German version December 2010[8] DIN EN ISO 717-1: Acoustics – Rating of sound insulation in buildings and ofbuilding elements – Part 1: Airborne sound insulation. German version
June 2013[9] DIN EN 29053: Acoustics – Materials for acoustical applications; determinationof airflow resistance. German version May 1993

M102794/29 RFD/STY
2018-05-15

Page 3

3 Test setup and test objects
3.1 Test objects
The test objects were composed of combinations of different fabric and film layers.
The individual materials can be described as follows:
Fabric Alex-fabric:Alex-material:

100 % PLF CS-

thickness:-

specific airflow resistance according
to DIN EN 29053 [9]:-d = 1.60 mm

mass per unit area:

Rs = 310 Pa · s/m
m' = 369 g/m2

Fabric Phantom Plus-

fabric:Phantom Plus-material:

100 % PLF-

specific airflow resistance according
to DIN EN 29053 [9]-mass per unit area:

Rs = 665 Pa · s/m
m' = 202 g/m2\\s-muc-fs01\AlleFirmen\M\Proj\102\M102794\M102794_29_PBE_1E.DOCX : 30. 05. 2018

Fabric Sport-fabric:Sport-material:

70 % PLF, 30 % PE-

thickness:-

specific airflow resistance according
to DIN EN 29053 [9]:-d = 0.40 mm

mass per unit area:

Rs = 808 Pa · s/m
m' = 256 g/m2

Fabric Secret-fabric:Secret-material:

100 % PLF-

thickness:-

specific airflow resistance according
to DIN EN 29053 [9]:-mass per unit area:

M102794/29 RFD/STY
2018-05-15

d = 0.75 mm
Rs = 606 Pa · s/m
m' = 308 g/m2

Page 4

Fabric Arno-

fabric:Arno-material:

100 % PLF CS-

thickness:-

specific airflow resistance according
to DIN EN 29053 [9]:-d = 1.00 mm

mass per unit area:

Rs = 1421 Pa · s/m
m' = 315 g/m2

Fabric molton/film-

fabric:-thickness:-

specific airflow resistance according
to DIN EN 29053 [9]:-Molton 1655, film-laminated on one sided = 1.50 mm

mass per unit area:

Rs > 40000 Pa · s/m
m' = 377 g/m2

Fabric Silent-

fabric:Silent-material:

100 % PLF CS-

thickness:-

specific airflow resistance according
to DIN EN 29053 [9]:\\s-muc-fs01\AlleFirmen\M\Proj\102\M102794\M102794_29_PBE_1E.DOCX : 30. 05. 2018-

mass per unit area:d = 0.90 mm
Rs = 594 Pa · s/m
m' = 315 g/m2

The information regarding the above mentioned fabrics were taken from the documents submitted by the manufacturer Création Baumann. The data regarding the
thickness of the fabric, the mass per unit area as well as the specific airflow resistance were determined by the test laboratory.
3.2 Test setup
The setup of the test objects in the test facility was carried out by employees of thetest laboratory.
In order to obtain the commonly used drapery and to mount the curtain fabrics in the
opening of the test facility, a two-piece frame of a coated derived timber product(MDF, 19 mm) was built. In each half of the frame the fabric was inserted in prefabricated grooves (width: approx. 5 mm, depth: 25 mm; centre distance between
grooves: 80 mm) and fixed by means of tacker staples. The fabric width per frame
half was 1.90 m, the installation width corresponding to the frame width was 1.24 m(resulting in approx. 50 % fabric addition).

M102794/29 RFD/STY
2018-05-15

Page 5

By assembling the two frame halves, a double drapery was obtained. Depending on
the test setup, a flat intermediate layer of film-laminated molton was fixed between
the two frame halves. The intermediate layer of molton/film was inserted in different
versions with one and two layers. For the two-layered arrangement of the intermediate layer, the individual layers were placed loosely without space with the film faces
on top of one another.
The following figure shows a schematic sketch of the setups tested (sketch not drawn
to scale):
Fabric (50 % fabric addition)
Molton / Film

The test opening had the dimensions width x height = 1.25 m x 1.50 m. The frames
had the exterior dimensions width x height = 1.24 m x 1.49 m and were made of acoated derived timber product (MDF, thickness: 19 mm). The test surface (clear
opening span within the frame) had the dimensions width x height= 1.202 m x 1.452 m = 1.75 m².

\\s-muc-fs01\AlleFirmen\M\Proj\102\M102794\M102794_29_PBE_1E.DOCX : 30. 05. 2018

The frame was installed with a 5 mm circumferential air gap between the frame andthe boundary surfaces of the test stand opening. The installation joint was sealed on
both sides by a permanently elastic sealing compound.
The test certificates in Appendix A contain further information on the test objects andthe test setups. Appendix B shows exemplary photos of the test setups.

4 Test method
The tests of the airborne sound insulation were carried out according to
DIN EN ISO 15186-1/-3 [6] [7]. The test method, test facility and the test equipmentused are described in Appendix C.

5 Evaluation
The intensity sound reduction index RI was determined in one-third octave bands
between 100 Hz and 5000 Hz according to DIN EN ISO 15186-1/-3 [6] [7].
The determination of the single values was carried out according to
DIN EN ISO 717-1 [8].
Hereby the following definitions apply:-

RI,w

weighted intensity sound reduction index-

C

spectrum adaption value for airborne sound with spectrum 1-

Ctr

spectrum adaption value for airborne sound with spectrum 2

M102794/29 RFD/STY
2018-05-15

Page 6

6 Results
The determined weighted sound reduction indices together with the spectrum
adaption values of the setups tested are summarized in the following Table 1.
Table 1. Setups in the window test facility.
No.

1
2
3
4
5
6
7
8
9

\\s-muc-fs01\AlleFirmen\M\Proj\102\M102794\M102794_29_PBE_1E.DOCX : 30. 05. 201810

Fabric(upper layer
with drapery)Alex,double-sided

Phantom Plus,
double-sided

Sport,
double-sided

Secret,double-sided

Arno,
double-sided

11

Intermediate layer
molton film-laminatedIntensity soundreduction index RI(C; Ctr) [dB]

Test certificate
Appendix A,
pagesingle layer

11 (-1; -3)

1

two layers

14 (-1; -4)

2single layer

13 (-1; -4)

3

two layers

15 (-1; -4)

4single layer

13 (-1; -3)

5

two layers

15 (-1; -3)

6single layer

13 (-1; -3)

7

two layers

16 (-2; -4)

8single layer

14 (-1; -3)

9two layers

16 (-1; -4)

10single layer

8 (0; -1)

11

two layers

12 (-1; -3)

12

without intermediatelayer

5 (0; -1)

13

without
12
13

Silent,one-sided

The complete measurement results are given in the test certificates in Appendix A.

M102794/29 RFD/STY
2018-05-15

Page 7

7 Remarks
The test results exclusively relate to the investigated subjects and conditions
described.

M.Eng. Philipp Meistring

Dipl.-Ing. (FH) Dominik Reif

(Responsible for technical content)(Project Manager)\\s-muc-fs01\AlleFirmen\M\Proj\102\M102794\M102794_29_PBE_1E.DOCX : 30. 05. 2018

This test report may only be published, shown or copied as a whole, including its
appendices. The publishing of excerpts is only possible after prior consent of
Müller-BBM.

M102794/29 RFD/STY
2018-05-15

Page 8

Intensity sound reduction index ISO 15186-1

Laboratory measurements of airborne sound insulation between rooms
Création Baumann AG
Bern-Zürich-Strasse 23, CH - 4901 Langenthal
Test specimen: Fabric Alex (draped), intermediate layer of molton/film (single layer)
Client:Details of the test setup:
Setup of the test object (from the source room to the receiving room):- 25 mm

Fabric Alex (draped, approx. 50 % fabric addition), manufacturer Création Baumann,
thickness d = 1.60 mm, m'' = 369 g/m2, specific airflow resistance Rs > 40,000 Pa s/m,
material: 100 % PLF CS- 1.5 mm

Molton/Film (flat)- 25 mm

Fabric Alex (draped, approx. 50 % fabric addition), manufacturer Création Baumann,
thickness d = 1.60 mm, m'' = 369 g/m2, specific airflow resistance Rs > 40,000 Pa s/m,
material: 100 % PLF CS

A frame made of derived timber product was installed into the test stand opening. The test object was
fixed in the frame with a commonly used drapery. The air gap between the frame and the boundary
surfaces of the test opening was sealed with a permanently elastic sealant. Dimensions of the test
surface width x height = 1.202 m x 1.452 m = 1.75 m2 (clear opening span of the frame).

Date of test: 2017-08-21
Size: 1.75 m²
Source room: F/GVol.: V = 150.60 m³
Receiving room: H
Vol.: V = 57.80 m³
θ = 24°C r.h. = 36 %

[Hz]
100
125
160
200
250
315
400
500
630
800
1000
1250
1600
2000
2500
3150
4000
5000

30

RI
Fp, I
1/3 octave1/3 octave
[dB]
[dB]
0.1
2.7
1.4
2.0
3.6
4.7
4.8
5.9
7.1
9.1
12.7
16.0
16.4
15.1
13.8
13.2
13.0
13.2

3.3
2.8
2.5
1.9
2.0
2.3
2.6
2.8
2.9
3.0
3.5
3.8
3.5
3.2
2.8
2.6
2.7
2.4

Intensity sound reduction index RI / dB

Frequency

Shiftet curve of reference values according to ISO 717-1
Intensity sound reduction index

20

10

0

-10

125

250

500

1000

2000
4000
Frequency f / Hz

Weighted intensity sound reduction index RI, w(C; Ctr) = 11 (-1; -3) dB
Evaluation based on laboratory measurement results
obtained by an engineering method.

2018-05-15
MÜLLER-BBM Planegg,
No. of test report M102794/29
Bau4(v1,11,55,0) - R:\BAU\Pruefst\Bau4Data\102\102794\2017-08-22-FensterPS eng\102794_2017-08-22-FensterPS eng_1.mb4: 30.05.2018

C
Ctr

100 - 3150 Hz
-1 dB
-3 dB

100 - 5000 Hz
0 dB
-3 dB

Appendix A
Page 1Intensity sound reduction index ISO 15186-1

Laboratory measurements of airborne sound insulation between rooms
Création Baumann AG
Bern-Zürich-Strasse 23, CH - 4901 Langenthal
Test specimen: Fabric Alex (draped), intermediate layer of molton/film (two layers)
Client:Details of the test setup:
Setup of the test object (from the source room to the receiving room):- 25 mm

Fabric Alex (draped, approx. 50 % fabric addition), manufacturer Création Baumann,
thickness d = 1.60 mm, m'' = 369 g/m2, specific airflow resistance Rs > 40,000 Pa s/m,
material: 100 % PLF CS- 1.5 mm

Molton/Film (flat)- 1.5 mm

Film/Molton (flat)- 25 mm

Fabric Alex (draped, approx. 50 % fabric addition), manufacturer Création Baumann,
thickness d = 1.60 mm, m'' = 369 g/m2, specific airflow resistance Rs > 40,000 Pa s/m,
material: 100 % PLF CS

A frame made of derived timber product was installed into the test stand opening. The test object was
fixed in the frame with a commonly used drapery. The air gap between the frame and the boundary
surfaces of the test opening was sealed with a permanently elastic sealant. Dimensions of the test
surface width x height = 1.202 m x 1.452 m = 1.75 m2 (clear opening span of the frame).

Date of test: 2017-08-21
Size: 1.75 m²
Source room: F/GVol.: V = 150.60 m³
Receiving room: H
Vol.: V = 57.80 m³
θ = 24°C r.h. = 36 %

[Hz]
100
125
160
200
250
315
400
500
630
800
1000
1250
1600
2000
2500
3150
4000
5000

30

RI
Fp, I
1/3 octave1/3 octave
[dB]
[dB]
0.3
3.8
2.5
3.5
5.5
7.0
7.1
8.5
9.9
12.2
15.7
19.4
22.1
21.6
19.4
18.0
17.4
17.3

2.7
2.9
2.5
2.0
2.2
2.4
2.6
2.9
3.3
3.3
3.7
3.8
3.8
3.6
3.1
2.8
2.8
2.5

Intensity sound reduction index RI / dB

Frequency

Shiftet curve of reference values according to ISO 717-1
Intensity sound reduction index

20

10

0

-10

125

250

500

1000

2000
4000
Frequency f / Hz

Weighted intensity sound reduction index RI, w(C; Ctr) = 14 (-1; -4) dB
Evaluation based on laboratory measurement results
obtained by an engineering method.

2018-05-15
MÜLLER-BBM Planegg,
No. of test report M102794/29
Bau4(v1,11,55,0) - R:\BAU\Pruefst\Bau4Data\102\102794\2017-08-22-FensterPS eng\102794_2017-08-22-FensterPS eng_2.mb4: 30.05.2018

C
Ctr

100 - 3150 Hz
-1 dB
-4 dB

100 - 5000 Hz
0 dB
-4 dB

Appendix A
Page 2

Intensity sound reduction index ISO 15186-1

Laboratory measurements of airborne sound insulation between rooms
Création Baumann AG
Bern-Zürich-Strasse 23, CH - 4901 Langenthal
Test specimen: Fabric Phantom Plus (draped), intermediate layer of molton/film (single layer)
Client:Details of the test setup:
Setup of the test object (from the source room to the receiving room):- 25 mm

Fabric Phantom Plus (draped, approx. 50 % fabric addition),
manufacturer Création Baumann,m'' = 202 g/m2, specific airflow resistance Rs = 665 Pa s/m, material: 100 % PLF- 1.5 mm

Molton/Film (flat)- 25 mm

Fabric Phantom Plus (draped, approx. 50 % fabric addition),
manufacturer Création Baumann,m'' = 202 g/m2, specific airflow resistance Rs = 665 Pa s/m, material: 100 % PLF

A frame made of derived timber product was installed into the test stand opening. The test object was
fixed in the frame with a commonly used drapery. The air gap between the frame and the boundary
surfaces of the test opening was sealed with a permanently elastic sealant. Dimensions of the test
surface width x height = 1.202 m x 1.452 m = 1.75 m2 (clear opening span of the frame).

Date of test: 2017-08-22
Size: 1.75 m²
Source room: F/GVol.: V = 150.60 m³
Receiving room: H
Vol.: V = 57.80 m³
θ = 24°C r.h. = 36 %

[Hz]
100
125
160
200
250
315
400
500
630
800
1000
1250
1600
2000
2500
3150
4000
5000

30

RI
Fp, I
1/3 octave1/3 octave
[dB]
[dB]
0.5
3.6
2.1
2.6
4.3
6.0
6.1
6.7
7.9
9.8
13.1
17.8
20.1
20.1
19.9
19.4
18.4
18.3

4.1
2.8
2.7
2.5
2.4
2.5
2.8
3.2
3.5
3.8
4.0
4.7
5.0
4.7
4.4
3.7
3.3
2.9

Intensity sound reduction index RI / dB

Frequency

Shiftet curve of reference values according to ISO 717-1
Intensity sound reduction index

20

10

0

-10

125

250

500

1000

2000
4000
Frequency f / Hz

Weighted intensity sound reduction index RI, w(C; Ctr) = 13 (-1; -4) dB
Evaluation based on laboratory measurement results
obtained by an engineering method.

2018-05-15
MÜLLER-BBM Planegg,
No. of test report M102794/29
Bau4(v1,11,55,0) - R:\BAU\Pruefst\Bau4Data\102\102794\2017-08-22-FensterPS eng\102794_2017-08-22-FensterPS eng_3.mb4: 30.05.2018

C
Ctr

100 - 3150 Hz
-1 dB
-4 dB

100 - 5000 Hz
-1 dB
-4 dB

Appendix A
Page 3

Intensity sound reduction index ISO 15186-1

Laboratory measurements of airborne sound insulation between rooms
Création Baumann AG
Bern-Zürich-Strasse 23, CH - 4901 Langenthal
Test specimen: Fabric Phantom Plus (draped), intermediate layer of molton/film (two layers)
Client:Details of the test setup:
Setup of the test object (from the source room to the receiving room):- 25 mm

Fabric Phantom Plus (draped, approx. 50 % fabric addition),
manufacturer Création Baumann,m'' = 202 g/m2, specific airflow resistance Rs = 665 Pa s/m, material: 100 % PLF- 1.5 mm

Molton/Film (flat)- 1.5 mm

Film/Molton (flat)- 25 mm

Fabric Phantom Plus (draped, approx. 50 % fabric addition),
manufacturer Création Baumann,m'' = 202 g/m2, specific airflow resistance Rs = 665 Pa s/m, material: 100 % PLF

A frame made of derived timber product was installed into the test stand opening. The test object was
fixed in the frame with a commonly used drapery. The air gap between the frame and the boundary
surfaces of the test opening was sealed with a permanently elastic sealant. Dimensions of the test
surface width x height = 1.202 m x 1.452 m = 1.75 m2 (clear opening span of the frame).

Date of test: 2017-08-22
Size: 1.75 m²
Source room: F/GVol.: V = 150.60 m³
Receiving room: H
Vol.: V = 57.80 m³
θ = 24°C r.h. = 36 %

[Hz]
100
125
160
200
250
315
400
500
630
800
1000
1250
1600
2000
2500
3150
4000
5000

30

RI
Fp, I
1/3 octave1/3 octave
[dB]
[dB]
0.7
4.3
2.2
3.7
6.3
7.7
7.9
8.5
9.9
12.7
16.7
21.7
25.1
25.0
24.1
23.0
21.9
21.9

3.7
2.8
2.7
2.5
2.9
3.1
3.1
3.1
3.7
4.4
4.4
4.9
5.2
4.9
4.3
3.7
3.2
2.9

Intensity sound reduction index RI / dB

Frequency

Shiftet curve of reference values according to ISO 717-1
Intensity sound reduction index

20

10

0

-10

125

250

500

1000

2000
4000
Frequency f / Hz

Weighted intensity sound reduction index RI, w(C; Ctr) = 15 (-1; -4) dB
Evaluation based on laboratory measurement results
obtained by an engineering method.

2018-05-15
MÜLLER-BBM Planegg,
No. of test report M102794/29
Bau4(v1,11,55,0) - R:\BAU\Pruefst\Bau4Data\102\102794\2017-08-22-FensterPS eng\102794_2017-08-22-FensterPS eng_4.mb4: 30.05.2018

C
Ctr

100 - 3150 Hz
-1 dB
-4 dB

100 - 5000 Hz
0 dB
-4 dB

Appendix A
Page 4

Intensity sound reduction index ISO 15186-1

Laboratory measurements of airborne sound insulation between rooms
Création Baumann AG
Bern-Zürich-Strasse 23, CH - 4901 Langenthal
Test specimen: Fabric Sport (draped), intermediate layer of molton/film (single layer)
Client:Details of the test setup:
Setup of the test object (from the source room to the receiving room):- 25 mm

Fabric Sport (draped, approx. 50 % fabric addition), manufacturer Création Baumann,
thickness d = 0.40 mm, m'' = 256 g/m2, specific airflow resistance Rs = 808 Pa s/m,
material: 70 % PLF 30 % PE

- 1.5 mm

Molton/Film (flat)- 25 mm

Fabric Sport (draped, approx. 50 % fabric addition) manufacturer Création Baumann,
thickness d = 0.40 mm, m'' = 256 g/m2, specific airflow resistance Rs = 808 Pa s/m,
material: 70 % PLF 30 % PE

A frame made of derived timber product was installed into the test stand opening. The test object was
fixed in the frame with a commonly used drapery. The air gap between the frame and the boundary
surfaces of the test opening was sealed with a permanently elastic sealant. Dimensions of the test
surface width x height = 1.202 m x 1.452 m = 1.75 m2 (clear opening span of the frame).

Date of test: 2017-08-29
Size: 1.75 m²
Source room: F/GVol.: V = 150.60 m³
Receiving room: H
Vol.: V = 57.80 m³
θ = 24°C r.h. = 36 %

[Hz]
100
125
160
200
250
315
400
500
630
800
1000
1250
1600
2000
2500
3150
4000
5000

30

RI
Fp, I
1/3 octave1/3 octave
[dB]
[dB]
2.2
1.8
3.6
4.3
4.4
5.9
6.0
6.9
8.5
10.9
14.2
17.9
18.9
18.0
16.8
16.3
15.7
15.8

3.0
2.9
2.9
2.7
2.6
2.6
3.0
3.5
3.4
3.7
3.9
4.0
4.0
3.9
3.5
3.1
3.0
2.8

Intensity sound reduction index RI / dB

Frequency

Shiftet curve of reference values according to ISO 717-1
Intensity sound reduction index

20

10

0

-10

125

250

500

1000

2000
4000
Frequency f / Hz

Weighted intensity sound reduction index RI, w(C; Ctr) = 13 (-1; -3) dB
Evaluation based on laboratory measurement results
obtained by an engineering method.

2018-05-15
MÜLLER-BBM Planegg,
No. of test report M102794/29
Bau4(v1,11,55,0) - R:\BAU\Pruefst\Bau4Data\102\102794\2017-08-22-FensterPS eng\102794_2017-08-22-FensterPS eng_6.mb4: 30.05.2018

C
Ctr

100 - 3150 Hz
-1 dB
-3 dB

100 - 5000 Hz
-1 dB
-3 dB

Appendix A
Page 5

Intensity sound reduction index ISO 15186-1

Laboratory measurements of airborne sound insulation between rooms
Création Baumann AG
Bern-Zürich-Strasse 23, CH - 4901 Langenthal
Test specimen: Fabric Sport (draped), intermediate layer of molton/film (two layers)
Client:Details of the test setup:
Setup of the test object (from the source room to the receiving room):- 25 mm

Fabric Sport (draped, approx. 50 % fabric addition), manufacturer Création Baumann,
thickness d = 0.40 mm, m'' = 256 g/m2, specific airflow resistance Rs = 808 Pa s/m,
material: 70 % PLF 30 % PE

- 1.5 mm

Molton/Film (flat)- 1.5 mm

Film/Molton (flat)- 25 mm

Fabric Sport (draped, approx. 50 % fabric addition), manufacturer Création Baumann,
thickness d = 0.40 mm, m'' = 256 g/m2, specific airflow resistance Rs = 808 Pa s/m,
material: 70 % PLF 30 % PE

A frame made of derived timber product was installed into the test stand opening. The test object was
fixed in the frame with a commonly used drapery. The air gap between the frame and the boundary
surfaces of the test opening was sealed with a permanently elastic sealant. Dimensions of the test
surface width x height = 1.202 m x 1.452 m = 1.75 m2 (clear opening span of the frame).

Date of test: 2017-08-29
Size: 1.75 m²
Source room: F/GVol.: V = 150.60 m³
Receiving room: H
Vol.: V = 57.80 m³
θ = 24°C r.h. = 36 %

[Hz]
100
125
160
200
250
315
400
500
630
800
1000
1250
1600
2000
2500
3150
4000
5000

30

RI
Fp, I
1/3 octave1/3 octave
[dB]
[dB]
2.8
2.5
4.5
5.8
5.7
7.8
8.0
9.0
11.2
14.1
17.9
21.7
23.4
22.7
21.4
20.7
20.2
20.2

2.6
2.7
2.8
2.8
2.7
2.6
2.9
3.1
3.6
3.9
4.0
4.2
4.2
4.1
3.6
3.2
3.2
2.9

Intensity sound reduction index RI / dB

Frequency

Shiftet curve of reference values according to ISO 717-1
Intensity sound reduction index

20

10

0

-10

125

250

500

1000

2000
4000
Frequency f / Hz

Weighted intensity sound reduction index RI, w(C; Ctr) = 15 (-1; -3) dB
Evaluation based on laboratory measurement results
obtained by an engineering method.

2018-05-15
MÜLLER-BBM Planegg,
No. of test report M102794/29
Bau4(v1,11,55,0) - R:\BAU\Pruefst\Bau4Data\102\102794\2017-08-22-FensterPS eng\102794_2017-08-22-FensterPS eng_7.mb4: 30.05.2018

C
Ctr

100 - 3150 Hz
-1 dB
-3 dB

100 - 5000 Hz
0 dB
-3 dB

Appendix A
Page 6

Intensity sound reduction index ISO 15186-1

Laboratory measurements of airborne sound insulation between rooms
Création Baumann AG
Bern-Zürich-Strasse 23, CH - 4901 Langenthal
Test specimen: Fabric Secret (draped), intermediate layer of molton/film (single layer)
Client:Details of the test setup:
Setup of the test object (from the source room to the receiving room):- 25 mm

Fabric Secret (draped, approx. 50 % fabric addition), manufacturer Création Baumann,
thickness d = 0.75 mm, m'' = 308 g/m2, specific airflow resistance Rs = 606 Pa s/m,
material: 100 % PLF- 1.5 mm

Molton/Film (flat)- 25 mm

Fabric Secret (draped, approx. 50 % fabric addition), manufacturer Création Baumann,
thickness d = 0.75 mm, m'' = 308 g/m2, specific airflow resistance Rs = 606 Pa s/m,
material: 100 % PLF

A frame made of derived timber product was installed into the test stand opening. The test object was
fixed in the frame with a commonly used drapery. The air gap between the frame and the boundary
surfaces of the test opening was sealed with a permanently elastic sealant. Dimensions of the test
surface width x height = 1.202 m x 1.452 m = 1.75 m2 (clear opening span of the frame).

Date of test: 2017-08-30
Size: 1.75 m²
Source room: F/GVol.: V = 150.60 m³
Receiving room: H
Vol.: V = 57.80 m³
θ = 24°C r.h. = 36 %

[Hz]
100
125
160
200
250
315
400
500
630
800
1000
1250
1600
2000
2500
3150
4000
5000

30

RI
Fp, I
1/3 octave1/3 octave
[dB]
[dB]
2.3
2.2
3.9
4.4
4.8
6.3
6.2
6.8
8.9
11.4
15.4
18.4
18.8
17.8
16.8
16.6
16.6
16.9

3.0
2.7
2.8
2.6
2.7
2.8
2.8
3.2
3.5
3.7
4.0
4.0
3.9
3.7
3.3
3.0
3.1
2.9

Intensity sound reduction index RI / dB

Frequency

Shiftet curve of reference values according to ISO 717-1
Intensity sound reduction index

20

10

0

-10

125

250

500

1000

2000
4000
Frequency f / Hz

Weighted intensity sound reduction index RI, w(C; Ctr) = 13 (-1; -3) dB
Evaluation based on laboratory measurement results
obtained by an engineering method.

2018-05-15
MÜLLER-BBM Planegg,
No. of test report M102794/29
Bau4(v1,11,55,0) - R:\BAU\Pruefst\Bau4Data\102\102794\2017-08-22-FensterPS eng\102794_2017-08-22-FensterPS eng_8.mb4: 30.05.2018

C
Ctr

100 - 3150 Hz
-1 dB
-3 dB

100 - 5000 Hz
0 dB
-3 dB

Appendix A
Page 7

Intensity sound reduction index ISO 15186-1

Laboratory measurements of airborne sound insulation between rooms
Création Baumann AG
Bern-Zürich-Strasse 23, CH - 4901 Langenthal
Test specimen: Fabric Secret (draped), intermediate layer of molton/film (two layers)
Client:Details of the test setup:
Setup of the test object (from the source room to the receiving room):- 25 mm

Fabric Secret (draped, approx. 50 % fabric addition), manufacturer Création Baumann,
thickness d = 0.75 mm, m'' = 308 g/m2, specific airflow resistance Rs = 606 Pa s/m,
material: 100 % PLF- 1.5 mm

Molton/Film (flat)- 1.5 mm

Film/Molton (flat)- 25 mm

Fabric Secret (draped, approx. 50 % fabric addition), manufacturer Création Baumann,
thickness d = 0.75 mm, m'' = 308 g/m2, specific airflow resistance Rs = 606 Pa s/m,
material: 100 % PLF

A frame made of derived timber product was installed into the test stand opening. The test object was
fixed in the frame with a commonly used drapery. The air gap between the frame and the boundary
surfaces of the test opening was sealed with a permanently elastic sealant. Dimensions of the test
surface width x height = 1.202 m x 1.452 m = 1.75 m2 (clear opening span of the frame).

Date of test: 2017-08-30
Size: 1.75 m²
Source room: F/GVol.: V = 150.60 m³
Receiving room: H
Vol.: V = 57.80 m³
θ = 24°C r.h. = 36 %

[Hz]
100
125
160
200
250
315
400
500
630
800
1000
1250
1600
2000
2500
3150
4000
5000

30

RI
Fp, I
1/3 octave1/3 octave
[dB]
[dB]
2.7
2.5
5.0
5.6
5.7
7.8
8.2
9.1
11.5
14.8
18.8
22.1
23.1
22.1
20.8
20.4
20.2
20.6

3.0
2.8
2.8
2.8
2.7
2.9
3.0
3.2
3.8
4.2
4.3
4.4
4.3
4.0
3.5
3.0
3.1
2.8

Intensity sound reduction index RI / dB

Frequency

Shiftet curve of reference values according to ISO 717-1
Intensity sound reduction index

20

10

0

-10

125

250

500

1000

2000
4000
Frequency f / Hz

Weighted intensity sound reduction index RI, w(C; Ctr) = 16 (-2; -4) dB
Evaluation based on laboratory measurement results
obtained by an engineering method.

2018-05-15
MÜLLER-BBM Planegg,
No. of test report M102794/29
Bau4(v1,11,55,0) - R:\BAU\Pruefst\Bau4Data\102\102794\2017-08-22-FensterPS eng\102794_2017-08-22-FensterPS eng_9.mb4: 30.05.2018

C
Ctr

100 - 3150 Hz
-2 dB
-4 dB

100 - 5000 Hz
-1 dB
-4 dB

Appendix A
Page 8

Intensity sound reduction index ISO 15186-1

Laboratory measurements of airborne sound insulation between rooms
Création Baumann AG
Bern-Zürich-Strasse 23, CH - 4901 Langenthal
Test specimen: Fabric Arno (draped), intermediate layer of molton/film (single layer)
Client:Details of the test setup:
Setup of the test object (from the source room to the receiving room):- 25 mm

Fabric Arno (draped, approx. 50 % fabric addition), manufacturer Création Baumann,
thickness d = 1.00 mm, m'' = 315 g/m2, specific airflow resistance Rs = 1421 Pa s/m,
material: 100 % PLF CS- 1.5 mm

Molton/Film (flat)- 25 mm

Fabric Arno (draped, approx. 50 % fabric addition), manufacturer Création Baumann,
thickness d = 1.00 mm, m'' = 315 g/m2, specific airflow resistance Rs = 1421 Pa s/m,
material: 100 % PLF CS

A frame made of derived timber product was installed into the test stand opening. The test object was
fixed in the frame with a commonly used drapery. The air gap between the frame and the boundary
surfaces of the test opening was sealed with a permanently elastic sealant. Dimensions of the test
surface width x height = 1.202 m x 1.452 m = 1.75 m2 (clear opening span of the frame).

Date of test: 2017-09-01
Size: 1.75 m²
Source room: F/GVol.: V = 150.60 m³
Receiving room: H
Vol.: V = 57.80 m³
θ = 24°C r.h. = 36 %

[Hz]
100
125
160
200
250
315
400
500
630
800
1000
1250
1600
2000
2500
3150
4000
5000

30

RI
Fp, I
1/3 octave1/3 octave
[dB]
[dB]
2.7
2.7
4.3
4.5
4.9
7.0
7.4
7.9
9.8
12.5
15.9
19.3
21.7
22.7
22.1
22.2
21.9
21.6

3.0
2.8
3.0
2.9
2.7
3.0
3.1
3.0
3.7
4.1
4.4
4.7
5.0
5.2
4.4
3.7
3.3
2.9

Intensity sound reduction index RI / dB

Frequency

Shiftet curve of reference values according to ISO 717-1
Intensity sound reduction index

20

10

0

-10

125

250

500

1000

2000
4000
Frequency f / Hz

Weighted intensity sound reduction index RI, w(C; Ctr) = 14 (-1; -3) dB
Evaluation based on laboratory measurement results
obtained by an engineering method.

2018-05-15
MÜLLER-BBM Planegg,
No. of test report M102794/29
Bau4(v1,11,55,0) - R:\BAU\Pruefst\Bau4Data\102\102794\2017-08-22-FensterPS eng\102794_2017-08-22-FensterPS eng_10.mb4: 30.05.2018

C
Ctr

100 - 3150 Hz
-1 dB
-3 dB

100 - 5000 Hz
0 dB
-3 dB

Appendix A
Page 9Intensity sound reduction index ISO 15186-1

Laboratory measurements of airborne sound insulation between rooms
Création Baumann AG
Bern-Zürich-Strasse 23, CH - 4901 Langenthal
Test specimen: Fabric Arno (draped), intermediate layer of molton/film (two layers)
Client:Details of the test setup:
Setup of the test object (from the source room to the receiving room):- 25 mm

Fabric Arno (draped, approx. 50 % fabric addition), manufacturer Création Baumann,
thickness d = 1.00 mm, m'' = 315 g/m2, specific airflow resistance Rs = 1421 Pa s/m,
material: 100 % PLF CS- 1.5 mm

Molton/Film (flat)- 1.5 mm

Film/Molton (flat)- 25 mm

Fabric Arno (draped, approx. 50 % fabric addition), manufacturer Création Baumann,
thickness d = 1.00 mm, m'' = 315 g/m2, specific airflow resistance Rs = 1421 Pa s/m,
material: 100 % PLF CS

A frame made of derived timber product was installed into the test stand opening. The test object was
fixed in the frame with a commonly used drapery. The air gap between the frame and the boundary
surfaces of the test opening was sealed with a permanently elastic sealant. Dimensions of the test
surface width x height = 1.202 m x 1.452 m = 1.75 m2 (clear opening span of the frame).

Date of test: 2017-09-01
Size: 1.75 m²
Source room: F/GVol.: V = 150.60 m³
Receiving room: H
Vol.: V = 57.80 m³
θ = 24°C r.h. = 36 %

[Hz]
100
125
160
200
250
315
400
500
630
800
1000
1250
1600
2000
2500
3150
4000
5000

30

RI
Fp, I
1/3 octave1/3 octave
[dB]
[dB]
3.8
3.5
5.2
5.8
6.2
8.2
8.4
9.2
11.5
14.8
19.2
23.4
26.4
26.8
25.5
25.5
25.1
25.2

3.2
3.0
3.0
2.7
2.9
2.9
3.1
3.2
3.8
4.4
4.9
5.2
5.3
5.3
4.3
3.6
3.2
2.8

Intensity sound reduction index RI / dB

Frequency

Shiftet curve of reference values according to ISO 717-1
Intensity sound reduction index

20

10

0

-10

125

250

500

1000

2000
4000
Frequency f / Hz

Weighted intensity sound reduction index RI, w(C; Ctr) = 16 (-1; -4) dB
Evaluation based on laboratory measurement results
obtained by an engineering method.

2018-05-15
MÜLLER-BBM Planegg,
No. of test report M102794/29
Bau4(v1,11,55,0) - R:\BAU\Pruefst\Bau4Data\102\102794\2017-08-22-FensterPS eng\102794_2017-08-22-FensterPS eng_11.mb4: 30.05.2018

C
Ctr

100 - 3150 Hz
-1 dB
-4 dB

100 - 5000 Hz
0 dB
-4 dB

Appendix A
Page 10

Intensity sound reduction index ISO 15186-1

Laboratory measurements of airborne sound insulation between rooms
Création Baumann AG
Bern-Zürich-Strasse 23, CH - 4901 Langenthal
Test specimen: Molton/Film (single layer)
Client:Details of the test setup:
Setup of the test object (from the source room to the receiving room):- 1.5 mm

Molton/Film (flat)
m'' = 377 g/m2, specific airflow resistance Rs ≥ 40000 Pa s/m

A frame made of derived timber product was installed into the test stand opening. The test object was
fixed in the frame with a commonly used drapery. The air gap between the frame and the boundary
surfaces of the test opening was sealed with a permanently elastic sealant. Dimensions of the test
surface width x height = 1.202 m x 1.452 m = 1.75 m2 (clear opening span of the frame).

Date of test: 2017-09-01
Size: 1.75 m²
Source room: F/GVol.: V = 150.60 m³
Receiving room: H
Vol.: V = 57.80 m³
θ = 24°C r.h. = 36 %

[Hz]
100
125
160
200
250
315
400
500
630
800
1000
1250
1600
2000
2500
3150
4000
5000

20

RI
Fp, I
1/3 octave1/3 octave
[dB]
[dB]
0.0
0.5
1.5
1.4
0.8
3.3
3.6
4.4
6.4
9.0
11.6
12.2
10.6
9.3
7.9
7.8
8.0
8.4

2.7
2.7
2.9
2.9
2.4
2.7
3.2
3.1
3.6
4.0
4.3
4.5
4.3
4.1
3.9
3.7
3.9
3.9

Intensity sound reduction index RI / dB

Frequency

Shiftet curve of reference values according to ISO 717-1
Intensity sound reduction index

10

0

-10

-20

125

250

500

1000

2000
4000
Frequency f / Hz

Weighted intensity sound reduction index RI, w(C; Ctr) = 8 (0; -1) dB
Evaluation based on laboratory measurement results
obtained by an engineering method.

2018-05-15
MÜLLER-BBM Planegg,
No. of test report M102794/29
Bau4(v1,11,55,0) - R:\BAU\Pruefst\Bau4Data\102\102794\2017-08-22-FensterPS eng\102794_2017-08-22-FensterPS eng_12.mb4: 30.05.2018

C
Ctr

100 - 3150 Hz
0 dB
-1 dB

100 - 5000 Hz
0 dB
-2 dB

Appendix A
Page 11Intensity sound reduction index ISO 15186-1

Laboratory measurements of airborne sound insulation between rooms
Création Baumann AG
Bern-Zürich-Strasse 23, CH - 4901 Langenthal
Test specimen: Molton/film (two layers)
Client:Details of the test setup:
Setup of the test object (from the source room to the receiving room):- 1.5 mm

Molton/Film (flat)
m'' = 377 g/m2, specific airflow resistance Rs ≥ 40000 Pa s/m- 1.5 mm

Film/molton (flat)
m'' = 377 g/m2, specific airflow resistance Rs ≥ 40000 Pa s/m

A frame made of derived timber product was installed into the test stand opening. The test object was
fixed in the frame with a commonly used drapery. The air gap between the frame and the boundary
surfaces of the test opening was sealed with a permanently elastic sealant. Dimensions of the test
surface width x height = 1.202 m x 1.452 m = 1.75 m2 (clear opening span of the frame).

Date of test: 2017-09-01
Size: 1.75 m²
Source room: F/GVol.: V = 150.60 m³
Receiving room: H
Vol.: V = 57.80 m³
θ = 24°C r.h. = 36 %

[Hz]
100
125
160
200
250
315
400
500
630
800
1000
1250
1600
2000
2500
3150
4000
5000

20

RI
Fp, I
1/3 octave1/3 octave
[dB]
[dB]
0.7
0.5
2.0
2.8
2.9
5.3
6.2
6.9
8.9
10.6
13.5
16.6
16.4
14.7
12.9
12.9
13.0
13.4

2.8
2.8
2.8
2.6
2.6
2.7
3.1
3.3
3.7
3.8
4.1
4.6
4.6
4.5
4.4
4.1
4.2
4.1

Intensity sound reduction index RI / dB

Frequency

Shiftet curve of reference values according to ISO 717-1
Intensity sound reduction index

10

0

-10

-20

125

250

500

1000

2000
4000
Frequency f / Hz

Weighted intensity sound reduction index RI, w(C; Ctr) = 12 (-1; -3) dB
Evaluation based on laboratory measurement results
obtained by an engineering method.

2018-05-15
MÜLLER-BBM Planegg,
No. of test report M102794/29
Bau4(v1,11,55,0) - R:\BAU\Pruefst\Bau4Data\102\102794\2017-08-22-FensterPS eng\102794_2017-08-22-FensterPS eng_13.mb4: 30.05.2018

C
Ctr

100 - 3150 Hz
-1 dB
-3 dB

100 - 5000 Hz
-1 dB
-3 dB

Appendix A
Page 12Intensity sound reduction index ISO 15186-1

Laboratory measurements of airborne sound insulation between rooms
Création Baumann AG
Bern-Zürich-Strasse 23, CH - 4901 Langenthal
Test specimen: Fabric Silent (draped, single layer without intermediate layer)
Client:Details of the test setup:
Setup of the test object (from the source room to the receiving room):- 25 mm

Fabric Silent (draped, approx. 50 % fabric addition), manufacturer Création Baumann,
thickness d = 0.90 mm, m'' = 315 g/m2, specific airflow resistance Rs = 594 Pa s/m,
material: 100 % PLF CS

A frame made of derived timber product was installed into the test stand opening. The test object was
fixed in the frame with a commonly used drapery. The air gap between the frame and the boundary
surfaces of the test opening was sealed with a permanently elastic sealant. Dimensions of the test
surface width x height = 1.202 m x 1.452 m = 1.75 m2 (clear opening span of the frame)..

Date of test: 2017-09-01
Size: 1.75 m²
Source room: F/GVol.: V = 150.60 m³
Receiving room: H
Vol.: V = 57.80 m³
θ = 24°C r.h. = 36 %

[Hz]
100
125
160
200
250
315
400
500
630
800
1000
1250
1600
2000
2500
3150
4000
5000

20

RI
Fp, I
1/3 octave1/3 octave
[dB]
[dB]
0.1
0.2
1.4
2.6
1.7
3.3
2.9
3.1
3.9
4.5
4.8
5.0
5.2
5.3
5.4
5.5
5.5
5.5

2.8
2.7
2.7
2.9
2.5
2.6
2.7
2.9
3.3
3.3
2.9
2.9
2.8
2.6
2.4
2.5
2.8
2.5

Intensity sound reduction index RI / dB

Frequency

Shiftet curve of reference values according to ISO 717-1
Intensity sound reduction index

10

0

-10

-20

125

250

500

1000

2000
4000
Frequency f / Hz

Weighted intensity sound reduction index RI, w(C; Ctr) = 5 (0; -1) dB
Evaluation based on laboratory measurement results
obtained by an engineering method.

2018-05-15
MÜLLER-BBM Planegg,
No. of test report M102794/29
Bau4(v1,11,55,0) - R:\BAU\Pruefst\Bau4Data\102\102794\2017-08-22-FensterPS eng\102794_2017-08-22-FensterPS eng_14.mb4: 30.05.2018

C
Ctr

100 - 3150 Hz
0 dB
-1 dB

100 - 5000 Hz
0 dB
-1 dB

Appendix A
Page 13

Photos\\s-muc-fs01\AlleFirmen\M\Proj\102\M102794\M102794_29_PBE_1E.DOCX : 30. 05. 2018

Figure B.1. Exemplary picture of a specimen in the window test stand (reception room side).

Figure B.2. Exemplary picture of a specimen in the window test stand (source room side).

M102794/29 RFD/STY
2018-05-15

Appendix B, Page 1

\\s-muc-fs01\AlleFirmen\M\Proj\102\M102794\M102794_29_PBE_1E.DOCX : 30. 05. 2018

Figure B.3. Exemplary picture of a setup with one layer of molton/film in the window
test stand (test setup opened).

Figure B.4. Exemplary picture of a setup with two layers of molton/film in the window
test stand (test setup opened).

M102794/29 RFD/STY
2018-05-15

Appendix B, Page 2

Description of the test procedure for the determination of theairborne sound insulation
1 Measurand
The intensity sound reduction index RI was determined assuming a sufficiently diffuse
sound field in the source room. The calculation of the intensity sound reduction index
was effected according to the following equations:
RI = Lps,1 – 9 – [LIn + 10 log(Sm/S)] dB

for f  160 Hz

RI = Lp,1 – 6 – [LIn + 10 log(Sm/S)] dB

for f  200 Hz

With:
RI

Intensity sound reduction index in dB

Lps,1 Average sound pressure level on the surface of the test specimen in thesource room in dB
Lp,1

Average sound pressure level in the source room in dB

LIn

Average normal sound intensity level over the measurement surface in thereceiving room in dB

Sm

Total surface area of the measurement surface(s) in m2

S

Surface area of the test specimen in m2\\s-muc-fs01\AlleFirmen\M\Proj\102\M102794\M102794_29_PBE_1E.DOCX : 30. 05. 2018

The surface area of the free test opening on the receiving room side was used interms of surface area of the test specimen S. The total surface area of the scanned
measurement surfaces Sm is identical with the surface area of the test specimen S.
Indications concerning the precision of the laboratory procedures regarding the determination of the airborne sound insulation are given in DIN EN ISO 12999-1 [1].
Indications regarding the reproducibility of the results of the intensity procedure using
the method according to DIN EN ISO 10140-2 [3] are described in
DIN EN ISO 15186-1 [6]For the determination of the intensity sound reduction index the measurement resultsof one measurement direction were used.

2 Description of the test facility
The window test stand complies with the requirements according to
DIN EN ISO 10140-5 [5], whereby the height of the test opening was adapted to thedimensions of the test object.
In order to increase the diffusivity of the sound field and to adjust the reverberation
time in the source room, two absorber boxes (dimensions each l x w x h =0.6 m x 0.6 m x 1.3 m) were placed on the floor.

M102794/29 RFD/STY
2018-05-15

Appendix C, page 1

\\s-muc-fs01\AlleFirmen\M\Proj\102\M102794\M102794_29_PBE_1E.DOCX : 30. 05. 2018

Figure C.1 and Figure C.2 show drawings of the window test facility.

Figure C.1. Floor plan of the window test facility.

M102794/29 RFD/STY
2018-05-15

Appendix C, page 2

\\s-muc-fs01\AlleFirmen\M\Proj\102\M102794\M102794_29_PBE_1E.DOCX : 30. 05. 2018

Figure C.2. Front view and sections of the window test facility.

M102794/29 RFD/STY
2018-05-15

Appendix C, page 3

3 Test procedure
3.1 Determination of the source room level
In order to increase the diffusivity of the sound field and to adjust the reverberation
time, two absorber boxes (dimensions each l x w x h = 0.6 m x 0.6 m x 1.3 m) wereplaced on the floor in the source room.
Pink Noise was used as a test signal. The sound pressure level difference between
adjacent one-third octave bands in the source room was < 6 dB.
Two dodecahedrons were used as sound sources. The excitation of the dodecahedrons was effected simultaneously at two sound source positions in the room. The
room with the larger volume was determined as source room. The sound sourceswere arranged in such a way that a most diffuse sound field was created. For thispurpose the excitation was done in the corner positions of the rear wall of the test
facility. The distance between the positions of the sound source and the test object
was at least 2 m, so that the share of the direct radiation of the sound source onto thetest object was negligible compared to the diffuse sound. Furthermore a distance ofat least 0.7 m to all room boundaries was kept.

\\s-muc-fs01\AlleFirmen\M\Proj\102\M102794\M102794_29_PBE_1E.DOCX : 30. 05. 2018

The measurement of the averaged sound pressure level in the source room was executed in the frequency range  200 Hz by continuous scanning with a moving microphone. The sweep radius of the microphone was 1.0 m. The traverse plane of the
microphone was inclined by approx. 10° compared to the ceiling. The microphone
traverses were distributed equally in the permitted room volume. Three microphone
traverses were registered. The averaging time of 60 seconds corresponded to theduration of two traverses of the movable microphones.
The average sound pressure level in the frequency range  160 Hz was registered at
ten fixed microphone positions on the surface of the specimen at a distance of
1.0 mm. The averaging time was 15 s.
The rms-average of the sound pressure levels was determined at the different microphone positions. The following minimum distances of the microphone positions wereconsidered:
-

1.2 m

between each microphone position and the room boundaries

-

2.0 m

between each microphone position and the sound source

-

1.2 m

between each moving microphone position and test specimen

Measurement of the sound pressure level was effected in one third octave bands.

M102794/29 RFD/STY
2018-05-15

Appendix C, page 4

3.2 Measurement of the averaged normal sound intensity level on the receivingroom side
In the receiving room, the level of the intensity normal component radiated by the test
object was determined by continuous scanning of the measurement surface using an
intensity probe.
The scanning was done with the intensity probe oriented perpendicular to the test
object, moving on meandering traverses at a distance of 0.2 m in front of the test
object. For the measurement, the test surface was subdivided into 3 partial measurement areas. Each field was scanned in horizontal and vertical directions.
By using sound absorbing material, the receiving room was adjusted before executing the measurements so that the pressure-intensity-indicator FpI = Lp - LIn was  5 dB
in all one-third octave bands.
3.3 Background noise\\s-muc-fs01\AlleFirmen\M\Proj\102\M102794\M102794_29_PBE_1E.DOCX : 30. 05. 2018

The averaged sound pressure level and the sound intensity level during excitation in
the receiving room exceeded the background noise level by at least 10 dB in all onethird octave bands. This was examined by means of the procedure according to
DIN EN ISO 15186-1 [6], section 6.5.

M102794/29 RFD/STY
2018-05-15

Appendix C, page 5

3.4 List of test equipment
The test equipment used for the measurements and evaluations is indicated in thefollowing list:
Table C.1. Test equipment.
Name

Manufacturer

Type

Serial-No.

Calibration
valid until

Norsonic

121

26342

2019-12QSC

GXD8GGF0M0495

Dodecahedron

Müller-BBM

DOD360A

372838

2018-08

Dodecahedron

Müller-BBM

DOD360A

3728392018-08

Loudspeaker moving facility

Müller-BBM

LSV

354501

Microphone swivel facility

Norsonic

212

12986

Pre-amplifier microphonewith free-field microphone

Norsonic
Norsonic

1201
1220

26145
25160

2018-12Pre-amplifier microphonewith free-field microphone

Norsonic
Norsonic

1201
1220

30588
26071

2018-12

Pistonphone

Brüel & Kjaer

4228

1651956

2018-12Intensity measurement
systemBrüel & Kjaer

2270

3009304

2018-11Microphone pairBrüel & Kjaer

4197

2984593-1/
2984593-2

2018-11Pre-amplifier

Brüel & Kjaer

2683

3038462

2018-11

Measurement andevaluation software

Müller-BBM

Bau4

Version 1.11

Building acoustics
measurement system\\s-muc-fs01\AlleFirmen\M\Proj\102\M102794\M102794_29_PBE_1E.DOCX : 30. 05. 2018

AmplifierIntensity probe kit:

M102794/29 RFD/STY
2018-05-15

Appendix C, page 6