BS EN ISO 389-3:1999

Acoustics. Reference zero for the calibration of audiometric equipment. Reference equivalent threshold force levels for pure tones and bone vibrators.

NORMA vydána dne 15.8.1999

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The information about the standard:

Designation standards: BS EN ISO 389-3:1999
Note: NEPLATNÁ
Publication date standards: 15.8.1999
The number of pages: 20
Approximate weight : 60 g (0.13 lbs)
Country: British technical standard
Kategorie: Technické normy BS