BS 4669:1971

Specification for an artificial ear of the wide band type for the calibration of earphones used in audiometry.

NORMA vydána dne 26.2.1971

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The information about the standard:

Designation standards: BS 4669:1971
Note: NEPLATNÁ
Publication date standards: 26.2.1971
The number of pages: 14
Approximate weight : 42 g (0.09 lbs)
Country: British technical standard
Kategorie: Technické normy BS