Standard

ISO 389-4:1994

Sept 1994 Published

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Language English

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Abstract

Specifies reference levels for narrow-band masking noise presented by air conduction from an earphone in pure-tone audiometry. The data are given in terms of levels to be added to the reference equivalent threshold sound pressure levels for the corresponding pure-tone frequencies. Data are given for noise bandwidths of one-third and one-half octaves.

Document information

Standard from ISO
Published: 22 September 1994
Edition: 1
Version: 1
Document type: IS
ISBN:

ICS 13.140
ISO TC ISO/TC 43

Product Relations

Referred by: NS-EN ISO 389-3:2016
Revises: ISO 8798:1987

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ISO 8798:1987
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ISO 389-4:1994

ISO 389-4:1994

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ISO 389-4:1994

ISO 8798:1987

Abstract

Document information

Product Relations

Product life cycle

Access to standards for the entire organization

Benefits of our business solution:

Contact us today for a non-binding offer

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Version history Related corrigendum and amendments (0)

Version history History (2)

ISO 389-4:1994

ISO 8798:1987

Abstract

Document information

Product Relations

Product life cycle