FOREWORD
INTRODUCTION
1 Scope
2 Normative references
3 Terms and definitions
4 Requirements by type and class of audiometer
5 General requirements
6 Test signals
7 Transducers
8 Signal level control
9 Reference tone
10 Calibration
11 Electrical output of test signals
12 Audiogram format
13 Test requirements to demonstrate conformity
14 Maximum permitted expanded uncertainty of
   measurements U[max]
15 Marking and instruction manual
Annex A (informative) - Relationship between
        tolerance interval, corresponding acceptance
        interval and the maximum permitted
        uncertainty of measurement
Bibliography