Table of Contents

Foreword
Introduction
1 Scope
2 Normative references
3 Calculation of percentiles of hearing threshold
  distribution
Annex A (informative) - Numerical examples to illustrate
        the procedure
Annex B (informative) - Selected values of the statistical
        distribution of hearing thresholds of otologically
        normal persons in the age range 18 years to 25 years
        inclusive
Annex C (informative) - Selected values of Z[x]
Annex D (informative) - Notes on the derivation of the
        statistical distribution of normal hearing thresholds
Bibliography

Abstract

Gives descriptive statistics, percentiles, of the hearing threshold distribution whose mean is the reference threshold value specified in ISO 226 and ISO 389-7.

General Product Information

Published
Document Type	Standard
Status	Current
Publisher	International Organization for Standardization
Pages
ISBN
Committee	TC 43
Supersedes	ISO/DIS 28961 : 60.00 (2011)