BS 6951:1988 PDF

For the frequency range 125 to 8000 Hz and for groups of otologically normal persons of a given age within the limit of 18 to 70 years inclusive, gives the expected value of median hearing threshold shift relative to a group aged 18 years and the expected statistical distribution above and below the median value.

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File Size :	1 file
ISBN(s) :	0580164853
Note :	This product is unavailable in Ukraine, Russia, Belarus
Number of Pages :	14
Product Code(s) :	178976, 178976, 178976
Published :	02/29/1988