Acoustic Test for Silencer
Test Method/ Standard
ISO 7235
ASTM E477
GB/T 25516

Test Facility
Test Chamber Volume : Receiver Room = 300 cu.m
Specimen size : 900mm (W) x 900mm (H) x 5400 mm (L)
Largest wind speed : 8 cu.m/s

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 acoustic test, including dynamic insertion loss, static insertion loss, airflow generated noise and pressure drop for silencers or silencing products