This practice provides instructions for performing calculations to verify and demonstrate that the design of each Safety Instrumented System is sufficient to meet the performance requirements associated with its assigned Safety Integrity Level (SIL).

TABLE OF CONTENTS

PURPOSE.................................................................................................................... i

SCOPE...................................................................................... 1

APPLICATION........................................................................................................ 1

DEFINITIONS....................................................................................................... 1

1.0 GENERAL.......................................................................................................... 3

2.0 SCHEDULING........................................................................................................ 3

3.0 INPUT INFORMATION............................................................................. 4

4.0 METHODOLOGY............................................................................................ 4

5.0 COMPONENT FAILURE DATA................................................................. 5

6.0 DOCUMENTATION........................................................................................... 5

7.0 FOLLOW-UP........................................................................................................ 5

8.0 RESOURCES.......................................................................................................... 6

9.0 REFERENCES..................................................................................................... 6

10.0 ATTACHMENTS.................................................................................................. 7