Sound Insulation Test
Test Method/ Standard
Sound Reduction Test according to ISO 140-3, ISO 717-1 (Rw)
Sound Reduction Test for road traffic noise reducing devices, road barrier according to BS EN 1793-2 & 1793-3(DLR)
Sound Transmission Loss Test according to ASTM E90, ASTM E413 (STC)
Outdoor-Indoor Transmission Class Measurement according to ASTM E90, ASTM E1332 (OITC)

Test Facility
Test Chamber Volume :
Room 1 : Source Room = 200 cu.m , Receiver Room = 120 cu.m , Specimen size : 2980mm (L) x 3980mm (W)
Room 2 : Source Room = 300 cu.m , Receiver Room = 130 cu.m , Specimen size : 3000mm (L) x 3600mm (W)
Room 3 : Source Room = 90 cu.m , Receiver Room = 150 cu.m , Specimen size : 3845mm (L) x 2845mm (W)

Instrumentation
B&K Class 0 or 1 type Sound Level Analyzer
B&K microphone
B&K calibrator
B&K omnidirectional loudspeaker

Test Description
To provide laboratory airborne sound insulation tests for building elements such as, partition walls, curtain walls, acoustic doors, noise barriers and windows etc.