BS 4999-51:1973 PDF

Specifies methods of measuring and classifying the acoustic noise emitted from rotating electrical machines under free field conditions. Methods for correcting for presence of pure tones. Upper limits of dB (A) sound power for machines rated up to 16 MW.

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ISBN(s) :	0580079821
Note :	This product is unavailable in Ukraine, Russia, Belarus
Product Code(s) :	10099608
Published :	10/31/1973