ISO-389-4 › Acoustics - Reference zero for the calibration of audiometric equipment - Part 4: Reference levels for narrow-band masking noise

ISO-389-4 - 1ST EDITION - CURRENT


Document Center Inc. is an authorized dealer of ISO standards.
The following bibliographic material is provided to assist you with your purchasing decision:


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.

ORDER

Price:

$52.38        


Want this as a site license?

To find similar documents by classification:

13.140 (Noise with respect to human beings Including audiometry Hearing protectors, see 13.340.20 Acoustics and acoustic measurements, see 17.140)

This document comes with our free Notification Service, good for the life of the document.

This document is available in either Paper or PDF format.

 

Customers who bought this document also bought:

IEC-62
Marking Codes for Resistors and Capacitors

IEC-61094-1
Measurement microphones - Part 1: Specifications for laboratory standard microphones

IEC-645-3
Part 3: Auditory Test Signals of Short Duration for Audiometric & NEURO-Otological Purpose

Document Number

ISO 389-4:1994

Revision Level

1ST EDITION

Status

Current

Publication Date

Oct. 1, 1994

Committee Number

ISO TC 43/WG 1