FOREWORD
INTRODUCTION
Clause
1 Scope
1.1 User environment
1.2 Hazards
1.3 Conditions
1.4 Possible protection measures
2 Reference documents
3 Definitions and abbreviations
3.1 Definitions
3.2 Abbreviations
4 General guidelines for the product committees
5 Guidelines referring to installation
6 Case by case requirements
6.1 Message types
6.2 Physical medium openness
6.3 Degree of hazard of devices and applications
6.4 Safety requirements
6.5 Case dependent requirements
Annex A - Some examples
Bibliography