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SRL Technical Services Limited Registered office: Holbrook House, Little Waldingfield, Sudbury, Suffolk, CO10 0TF Registered in England No 907694
24370-SRL-RP-XT-002-P1
20/01/2025
Template Ref: Lab Edition 7 – November 2023
Technical Report
24370-SRL-RP-XT-002-P1
Project
The Laboratory Measurement of the
Airborne Sound Insulation of Various
Windows
Prepared for
Ace Partitioning Systems Ltd
Published
20 January 2025
24370-SRL-RP-XT-002-P1
20/01/2025
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This report shall not be reproduced, except in full,
without written approval of SRL Technical Services Ltd
Quality Assurance
Project Title
The Laboratory Measurement of the Airborne Sound Insulation of
Various Windows
Document Title
Laboratory Test Report
Client
Ace Partitioning Systems Ltd
Client Address
9 Millside Industrial Estate
Southmill Road
Bishops Stortford
CM23 3DP
Author
Richard Calvert
Tester
Checker
Allen Smalls
Quality Manager
Report Number
24370-SRL-RP-XT-002-P1
Version History
Version
Date
Comments
P1
20/01/2025
24370-SRL-RP-XT-002-P1
20/01/2025
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without written approval of SRL Technical Services Ltd
Contents
1.0
Description of Test ................................................................................................................................................... 4
2.0
Results .......................................................................................................................................................................... 5
Data Sheets 1 to 21 ................................................................................................................................................................ 7
Drawings 1 to 4 ..................................................................................................................................................................... 28
Appendix A - Details of Measurements ........................................................................................................................... 32
Appendix B – Test Procedure ........................................................................................................................................... 34
Appendix C – Measurement Uncertainty ....................................................................................................................... 36
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1.0
Description of Test
Tests have been done in SRL's Laboratory at Holbrook House, Sudbury, Suffolk, to determine the sound
reduction index of various windows in accordance with BS EN ISO 10140-2: 2010.
The results are given in 1/3rd octave bands over the frequency range 50Hz to 10kHz, which is beyond that
required by the test standard. Measurements outside the standard frequency range are not UKAS
accredited.
1.1
Description of Sample
Various windows were tested. See section 2.0, Data Sheets 1 to 21 and Drawings 1 to 4 for details.
Sampling plan:
Enough for test only
Sample condition:
New
Details supplied by:
Ace Partitioning Systems Ltd
Sample installed by:
Ace Partitioning Systems Ltd
1.2
Sample Delivery Date
2 & 5 March 2020
1.3
Test Procedures
The sample was mounted/located and tested in accordance with the relevant standard. The details
of measurements are given in Appendix A. The method and procedure are described in Appendix
B. The measurement uncertainty is given in Appendix C.
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2.0
Results
The results of the measurements and subsequent analysis are given in Data Sheets 1 to 21 and summarised
below.
Results relate only to the items as received and tested.
SRL
Test No.
Description in Brief
Rw (C;Ctr)
4
BP25 10mm Toughened Glass
33 (-3;-3) dB
5
BP25 10.8mm Laminated Glass
37 (-1;-4) dB
6
BP25 12mm Toughened Glass
35 (-2;-3) dB
11
BP25 12.8mm Laminated Glass
38 (-1;-4) dB
14
BP54 12mm Toughened Glass, 16mm Cavity, 10mm Toughened Glass
38 (-1;-5) dB
16
BP54 10.8mm Laminated Glass, 16mm Cavity, 10mm Toughened Glass
40 (-2;-5) dB
17
BP54 12.8mm Laminated Glass, 16mm Cavity, 10mm Toughened Glass
40 (-1;-5) dB
19
BP54 12.8mm Laminated Glass, 16mm Cavity, 12.8mm Laminated Glass
42 (-1;-5) dB
20
BP54 10.8mm Laminated Glass, 16mm Cavity, 12.8mm Laminated Glass
40 (-1;-6) dB
21
BP54 12mm Toughened Glass, 16mm Cavity, 12.8mm Laminated Glass
40 (-1;-4) dB
23
BP54 12mm Toughened Glass, 16mm Cavity, 12mm Toughened Glass
37 (-1;-4) dB
24
BP100 12.8mm Laminated Glass, 60mm Cavity, 12.8mm Laminated Glass
51 (-2;-5) dB
25
BP100 10.8mm Laminated Glass, 60mm Cavity, 12.8mm Laminated Glass
50 (-1;-5) dB
26
BP100 12mm Toughened Glass, 60mm Cavity, 12.8mm Laminated Glass
49 (-2;-5) dB
27
BP100 12mm Toughened Glass, 16mm Cavity, 12mm Toughened Glass
42 (-3;-5) dB
28
BP100 10.8mm Laminated Glass, 60mm Cavity, 12mm Toughened Glass
48 (-1;-5) dB
29
BP100 10mm Toughened Glass, 60mm Cavity, 12mm Toughened Glass
46 (-3;-6) dB
30
BP100 10mm Toughened Glass, 60mm Cavity, 10.8mm Laminated Glass
47 (-2;-6_ dB
31
BP100 10.8mm Laminated Glass, 60mm Cavity, 10.8mm Laminated Glass
49 (-2;-7) dB
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without written approval of SRL Technical Services Ltd
SRL
Test No.
Description in Brief
Rw (C;Ctr)
32
12mm Toughened Glass Door - taped
33 (-2;-2) dB
33
12mm Toughened Glass Door – un-taped
33 (-2;-3) dB
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without written approval of SRL Technical Services Ltd
Data Sheets 1 to 21
Octave
36.7
30.4
23.6
22.6
24.8
25.5
28.1
29.3
29.3
31.0
32.9
34.8
35.7
34.0
24.4
28.6
32.6
35.9
38.8
41.6
43.9
46.1
46.8
48.2
33 (-3 ; -3 ) dB
10.1 °C
67 %
50 m³
Rw(C;Ctr)=
Rating according to BS EN ISO 717-1:2013
* shows measurement corrected for background
> shows measurement limited by background
+ shows Frequency beyond standard and not UKAS accredited
25.1 kg/m²
Product
Identification:
Air Pressure:
981 mbar
BP25 10mm Toughened Glass
1.02 m
30.5
Data Sheet 1
02/03/2020
Ace Partitioning Systems Ltd
2.77 m
Source
Receiving
9.9 °C
60 %
Test Room:
Air Temperature:
Air Humidity:
Volume:
55 m³
Version
v3.1
Test Number:
Test Date:
Client:
Sample Height:
Sample Width:
Sample Weight:
4000
5000
6300+
8000+
10000+
Average
100-3150
1000
1250
46.9
Freq, f
Hz
Sound Reduction
Index, dB
50+
63+
80+
⅓ Oct
27.4
160
200
24.1
28.8
32.6
100
125
28.4
31.4
41.0
3150
250
315
400
500
630
800
1600
2000
2500
10.0
20.0
30.0
40.0
50.0
60.0
70.0
80.0
100
125
160
200
250
315
400
500
630
800
1000
1250
1600
2000
2500
3150
4000
5000
Sound Reduction Index, dB
Frequency, Hz
Sound Reduction
Index
Rw reference curve
24370-SRL-RP-XT-002-P1
20/01/2025
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Octave
37.7
32.5
25.2
22.1
24.2
25.4
27.7
29.4
29.6
31.3
33.0
35.3
36.1
36.6
36.2
37.4
40.4
43.5
47.1
49.8
50.9
49.8
49.3
48.8
37 (-1 ; -4 ) dB
36.3
39.8
49.0
3150
250
315
400
500
630
800
1600
2000
2500
160
200
23.7
28.8
32.9
100
125
Freq, f
Hz
Sound Reduction
Index, dB
50+
63+
80+
⅓ Oct
29.0
Version
v3.1
Test Number:
Test Date:
Client:
Sample Height:
Sample Width:
Sample Weight:
4000
5000
6300+
8000+
10000+
Average
100-3150
1000
1250
49.3
Data Sheet 2
02/03/2020
Ace Partitioning Systems Ltd
2.77 m
Source
Receiving
9.8 °C
63 %
Test Room:
Air Temperature:
Air Humidity:
Volume:
55 m³
10.2 °C
67 %
50 m³
Rw(C;Ctr)=
Rating according to BS EN ISO 717-1:2013
* shows measurement corrected for background
> shows measurement limited by background
+ shows Frequency beyond standard and not UKAS accredited
25.1 kg/m²
Product
Identification:
Air Pressure:
981 mbar
BP25 10.8mm Laminated Glass
1.02 m
33.5
10.0
20.0
30.0
40.0
50.0
60.0
70.0
80.0
100
125
160
200
250
315
400
500
630
800
1000
1250
1600
2000
2500
3150
4000
5000
Sound Reduction Index, dB
Frequency, Hz
Sound Reduction
Index
Rw reference curve
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20/01/2025
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Octave
39.3
34.1
30.4
24.1
25.3
27.2
28.9
30.7
30.4
32.1
34.0
35.6
34.8
29.4
30.6
33.3
37.5
39.1
42.5
44.3
47.5
48.4
49.7
50.4
35 (-2 ; -3 ) dB
10.3 °C
68 %
50 m³
Rw(C;Ctr)=
Rating according to BS EN ISO 717-1:2013
* shows measurement corrected for background
> shows measurement limited by background
+ shows Frequency beyond standard and not UKAS accredited
30.1 kg/m²
Product
Identification:
Air Pressure:
982 mbar
BP25 12mm Toughened Glass
1.02 m
32.2
Data Sheet 3
02/03/2020
Ace Partitioning Systems Ltd
2.77 m
Source
Receiving
9.8 °C
62 %
Test Room:
Air Temperature:
Air Humidity:
Volume:
55 m³
Version
v3.1
Test Number:
Test Date:
Client:
Sample Height:
Sample Width:
Sample Weight:
4000
5000
6300+
8000+
10000+
Average
100-3150
1000
1250
49.4
Freq, f
Hz
Sound Reduction
Index, dB
50+
63+
80+
⅓ Oct
33.3
160
200
25.3
29.9
33.6
100
125
31.0
35.9
44.3
3150
250
315
400
500
630
800
1600
2000
2500
10.0
20.0
30.0
40.0
50.0
60.0
70.0
80.0
100
125
160
200
250
315
400
500
630
800
1000
1250
1600
2000
2500
3150
4000
5000
Sound Reduction Index, dB
Frequency, Hz
Sound Reduction
Index
Rw reference curve
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Octave
39.5
32.8
25.8
23.0
25.7
26.9
29.4
31.0
30.9
32.7
34.6
36.1
36.5
35.9
36.1
39.5
43.3
46.5
49.9
52.8
55.1
55.5
55.2
53.2
38 (-1 ; -4 ) dB
10.4 °C
66 %
50 m³
Rw(C;Ctr)=
Rating according to BS EN ISO 717-1:2013
* shows measurement corrected for background
> shows measurement limited by background
+ shows Frequency beyond standard and not UKAS accredited
30.1 kg/m²
Product
Identification:
Air Pressure:
984 mbar
BP25 12.8mm Laminated Glass
1.02 m
34.9
Data Sheet 4
02/03/2020
11
Ace Partitioning Systems Ltd
2.77 m
Source
Receiving
10 °C
60 %
Test Room:
Air Temperature:
Air Humidity:
Volume:
55 m³
Version
v3.1
Test Number:
Test Date:
Client:
Sample Height:
Sample Width:
Sample Weight:
4000
5000
6300+
8000+
10000+
Average
100-3150
1000
1250
54.5
Freq, f
Hz
Sound Reduction
Index, dB
50+
63+
80+
⅓ Oct
29.6
160
200
24.9
30.4
34.3
100
125
36.2
42.2
52.1
3150
250
315
400
500
630
800
1600
2000
2500
10.0
20.0
30.0
40.0
50.0
60.0
70.0
80.0
100
125
160
200
250
315
400
500
630
800
1000
1250
1600
2000
2500
3150
4000
5000
Sound Reduction Index, dB
Frequency, Hz
Sound Reduction
Index
Rw reference curve