Sound Absorption Test
Test Method/ Standard
Sound Absorption Measurement according to ISO 354 [Weighted Sound Absorption Coefficient (aw)]
Sound Absorption Measurement for road traffic noise reducing devices, road barrier according to BS EN 1793-1(DLa)
Sound Absorption Measurement according to ASTM C423 (SAA / NRC)

Test Facility
Test Chamber Volume = 200 or 300 cu.m
Specimen size : ASTM C423 ≧6 sq.m
ISO 354 ≧10sq.m
GB/T20247 ≧10sq.m

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 sound absorption tests for building elements such as, rockwools, wall linings, fabric panels and ceiling systems etc.