REPORT SUNDBYBERG KOMMUNHUS, MEASUREMENT OF SOUND PRESSURE LEVELS IN OPEN PLANE OFFICES STORKONOTOR

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1 REPORT SUNDBYBERG KOMMUNHUS, MEASUREMENT OF SOUND PRESSURE LEVELS IN OPEN PLANE OFFICES STORKONOTOR

2 Project , Sundbyberg, mätning av rumsakustiska parametrar enligt SS-EN Title: Version: Date: Participants Sundbybergs Kommunhus, measurement of sound pressure levels in open plane offices Customer: Contact: Saint-Gobain Ecophon AB Frans Davidsson Consultant: Project manager: Administrator: Quality manager: Tyréns AB Philip Zalyaletdinov Philip Zalyaletdinov Martin Höjer Revision Revision date: Version: Rev.01 Initials: Author: Philip Zalyaletdinov Date: Quality manager: Martin Höjer Date: C:\Users\pzv\Documents\Projekt\rumsakustik\2014\ Ecophon Sundbyberg\rapport\ Sundbyberg_Measurements of sound pressure level in open

3 Tyréns AB Stockholm Besök: Peter Myndes Backe 16 Tel: Säte: Stockholm Org.Nr: Contents 1 Background Measurement procedure Results Measurement equipment (8)

1 Background Evaluation of room acoustic parameters according to ISO 3382-3:2012 has been performed at Sundbybergs kommunhus open offices.

Sound pressure levels were registered at four different measurement points (MP), see Figure 1.

4 1 Background Evaluation of room acoustic parameters according to ISO :2012 has been performed at Sundbybergs kommunhus open offices. Measurements of sound pressure level from conventional office activities were performed as part of the acoustic evaluation. Measurements were performed in offices at floor 4 and 5. Sound pressure levels were registered at four different measurement points (MP), see Figure 1. Floor 5 Floor 4 MP4 MP3 MP2 MP1 Figure 1 Measurement points at floor 4 and 5 Measurements were done for three different measurement periods: Measurement results are presented in this report. C:\Users\pzv\Documents\Projekt\rumsakustik\2014\ Ecophon Sundbyberg\rapport\ Sundbyberg_Measurements of sound pressure level in open

Microphones were placed approximately 25 cm below the ceiling, se Figure 2.

5 2 Measurement procedure Sound pressure was registered as A-weighted, equivalent sound pressure level with time weighting Fast. Microphones were placed approximately 25 cm below the ceiling, se Figure 2. Due to sound analyzer malfunction no data values could be collected during measurement period 1 and 3 for measurement point 1 and 2. Figure 2 Placement of microphones 5(8)

6 3 Results Measured sound pressure level, collected during normal working hours (07:00 18:00) is presented for each measurement point. Presented values are logarithmic mean for each measurement period. 60 MP 1 Sound pressure level [dba] MÄTPERIOD 1 2 MÄTPERIOD 3 3 Time Figure 4 Registered A-weighted sound pressure level - MP 1 60 MP 2 Sound pressure level [dba] MÄTPERIOD 1 1 MÄTPERIOD 2 2 Time Figure 5 Registered A-weighted sound pressure level - MP 2 6(8)

7 60 MP 3 Sound pressure level [dba] MÄTPERIOD 1 1 MÄTPERIOD 2 2 MÄTPERIOD 3 PERIOD 3 Time Figure 6 Registered A-weighted sound pressure level - MP 3 60 MP 4 Sound pressure level [dba] MÄTPERIOD 1 1 MÄTPERIOD 2 2 MÄTPERIOD PERIOD 3 3 Time Figure 7 Registered A-weighted sound pressure level - MP 4 7(8)

8 4 Measurement equipment Type Brand Type Label Real time analyzer Norsonic Nor 140 LA 01s Real time analyzer Norsonic Nor 140 LA 02s Real time analyzer Norsonic Nor 140 LA 03s Real time analyzer Norsonic Nor 140 LA 04s Measurement instruments are calibrated according to national and international standards and our internal quality system. 8(8)

Technical Note. Noise emission from Dehumidifier Type C35E-3.3 and Type C35E-5.6. TC Project no.: T Page 1 of 10.

Technical Note. Noise emission from Dehumidifier Type C35E-3.3 and Type C35E-5.6. TC Project no.: T Page 1 of 10. Technical Note Noise emission from Dehumidifier Type C35E-3.3 and Type C35E-5.6 Performed for COTES A/S TC-100902 Project no.: T211658 Page 1 of 10 15 January 2016 DELTA Venlighedsvej 4 2970 Hørsholm Denmark