FOREWORD
INTRODUCTION
1. Scope and object
2. Normative references
3. Definitions
4. General system requirements
5. System technical requirements
6. Installation requirements
7. System operation
Annex A (informative) - Measurement of speech intelligibility
Annex B (normative) - Measurement method
Annex C (informative) - Attention drawing audible signals
Annex D (informative) - Bibliography
Annex ZA (normative) - Normative references to
international publications
with their corresponding
European publications