FOREWORD
INTRODUCTION
1 Scope
2 Normative references
3 Definitions
4 General requirements
5 Requirements for specific types of audiometers
6 Reference conditions for specification, testing
and calibration of speech audiometers
7 Signal level indicator
8 Output level control for speech signals
9 Output sound pressure level
10 Frequency response
11 Harmonic distortion
12 Signal-to-noise ratio
13 Masking sound
14 Marking and instruction manual