SZNS ISO 8253-1:2010 Acoustics – Audiometric test methods- Part 1: Pure-tone air and bone conduction audiometry

E405.21

1 Scope

This part of SZNS ISO 8253 specifies procedures and requirements for pure-tone air conduction and bone conduction threshold audiometry. For screening purposes, only pure-tone air conduction audiometric test methods are specified. It is possible that the procedures are not appropriate for special populations, e.g. very young children.

This part of SZNS ISO 8253 does not cover audiometric procedures to be carried out at levels above the hearing threshold levels of the subjects.

Procedures and requirements for speech audiometry, electrophysiological audiometry, and where loudspeakers are used as a sound source are not specified

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Description

Contents                                                                                                                               Page

1 Scope…………………………………………………………………………………………………………………. ……………………………………1

2 Normative references. …………………………………………………………………………………………………………………………………1

3 Terms and definitions. …………………………………………………………………………………………………………………………………1

4 General aspects of audiometric measurements. …………………………………………………………………………………………….5

5 Preparation and instruction of test subjects before audiometric testing and positioning of transducers  …………..7

6 Air conduction hearing threshold level determinations using fixed-frequency audiometry. ………………………………8

7 Air conduction hearing threshold level determinations using sweep-frequency audiometry. …………………………..12

8 Bone conduction hearing threshold audiometry. …………………………………………………………………………………………13

9 Screening audiometry. ……………………………………………………………………………………………………………………………….14

10 Audiograms. …………………………………………………………………………………………………………………………………………….15

11 Permissible ambient noise. ………………………………………………………………………………………………………………………15

12 Maintenance and calibration of audiometric equipment ……………………………………………………………………………19

Annex A Measurement uncertainty. ……………………………………………………………………………………………………………..23

Bibliography. ……………………………………………………………………………………………………………………………………………28

 

Additional information

FORMAT

PAPER, PDF