Acoustics

Bluett & Swann provides a written guarantee that operable wall panels are of like construction to laboratory tested operable walls manufactured to NATA Standards AS1191-1985.

Acoustic Ratings

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Model	STC	Max Height (mm)	Weight (kg sq m)	Charted Results
OW35	35	6000	20
OW40	40	6000	25	STC Model OW40
OW40	44	6000	30	STC Model OW44
OW46	46	6000	35	STC Model OW46
OW49	49	5000	35	STC Model OW49
OW50	50	5000	45	STC Model OW50

Acoustic tests were carried out using the pair of sound transmission rooms of the Department of Applied Physics at The Royal Melbourne Institute of Technology Limited. The sound pressure level difference resulting between these two rooms when a sound source operated in the source room was used in conjunction with the surface area of the sample and the equivalent absorption area of the receiving room to determine the airborne sound transmission loss of the sample.

Testing was carried out in full accordance with the laboratory's NATA registration and in accordance with Australian Standard 1191-1985, Method for Laboratory Measurement of Airborne Sound Transmission Loss of Building Partitions. The equipment used to perform these tests had been calibrated at a NATA registered laboratory and was in current calibration.

Acoustic Seals

Type	Description
Fixed Sweep Top Seals	Continuous contact 25mm bulb seals which automatically compensate for floor irregularities, within specified limits (see Work by Others). Fixed Sweep Seals provide a constant contact sound-retardant barrier.
Fixed Sweep Bottom Seals	Continuous contact 25mm bulb seals which automatically compensate for floor irregularities, within specified limits (see Work by Others). Fixed Sweep Seals provide a constant contact sound-retardant barrier.
Retractable Top Seals	Retractable, manually operated mechanical pressure seals of PVC rectangular shape. When activated seals extend or retract within the top of the panel. The seal exerts a minimum constant pressure to the track providing a sound retardant barrier.
Retractable Bottom Seals	Retractable, manually operated mechanical pressure seals of PVC rectangular shape. When activated seals extend or retract within the bottom of the panel. The seals exert constant pressure to the floor providing a sound retardant barrier.