PDF Standards ASA S3.39-1987 (R2020)

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This standard provides specifications for instruments designed to measure acoustic impedance, acoustic admittance, or both quantities, within the human external ear canal. Terms that apply to these instruments and to related measurements are defined. Four types of instruments are classified. Characteristics, specification, and recommended cailibration procedures then are provided. Material within this standard is intended both for users and for manufacturers of instruments that measure aural acoustic impedance and admittance.

Product Details

Published:

01/01/1987

ANSI:

ANSI Approved

Number of Pages:

24

File Size:

1 file , 1.6 MB

Note:

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