BS 7135-1:1989 PDF

Methods for determining the A-weighted sound power levels based on measurements in reverberant rooms or in free-field conditions over a reflecting plane, and A-weighted sound pressure levels at the operator or bystander positions.

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File Size :	1 file
ISBN(s) :	0580175111
Note :	This product is unavailable in Ukraine, Russia, Belarus
Number of Pages :	46
Product Code(s) :	199996, 199996, 199996
Published :	08/31/1989