AS 1277

AS 1277 – Acoustics – Measurement procedures for ducted silencers

Applies to the objective measurement performance of silencers for ducted ventilating and air-conditioning systems for two types, viz. Type A which have the same dimensions as those of the test duct and the same direction for the inlet and outlet connections, and Type B which have different dimensions from those of the test duct and/or different directions between the axis of the inlet and outlet connections. Two methods are supplied for the determination of the insertion loss of ducted silencers, viz. the direct method and the substitution method.

Product Details

Edition:

1st

Published:

12/01/1983

ISBN(s):

0726232262

Number of Pages:

23

File Size:

1 file , 200 KB

Product Code(s):

10111048, 10111035, 10111053

Note:

This product is unavailable in Ukraine, Russia, Belarus