BIS IS/IEC 61511-3 : 2003
Current
The latest, up-to-date edition.
FUNCTIONAL SAFETY - SAFETY INSTRUMENTED SYSTEMS FOR THE PROCESS INDUSTRY SECTOR - PART 3: GUIDANCE FOR THE DETERMINATION OF THE REQUIRED SAFETY INTEGRITY LEVELS
12-01-2013
NATIONAL FOREWORD
INTRODUCTION
1 SCOPE
2 TERMS, DEFINITIONS AND ABBREVIATIONS
3 RISK AND SAFETY INTEGRITY - GENERAL
GUIDANCE
ANNEX A (INFORMATIVE) - AS LOW AS REASONABLY
PRACTICABLE (ALARP) AND TOLERABLE RISK CONCEPTS
ANNEX B (INFORMATIVE) - SEMI-QUANTITATIVE METHOD
ANNEX C (INFORMATIVE) - THE SAFETY LAYER MATRIX METHOD
ANNEX D (INFORMATIVE) - DETERMINATION OF THE REQUIRED
SAFETY INTEGRITY LEVELS - A SEMI-QUALITATIVE
METHOD: CALIBRATED RISK GRAPH
ANNEX E (INFORMATIVE) - DETERMINATION OF THE REQUIRED
SAFETY INTEGRITY LEVELS - A QUALITATIVE METHOD:
RISK GRAPH
ANNEX F (INFORMATIVE) - LAYER OF PROTECTION ANALYSIS (LOPA)
Gives information on: - the underlying concepts of risk, the relationship of risk to safety integrity; - the determination of tolerable risk; - a number of different methods that enable the safety integrity levels for the safety instrumented functions to be determined.
| Committee |
LITD 9
|
| DevelopmentNote |
Issue Date: 01/10/2008. (02/2009)
|
| DocumentType |
Standard
|
| PublisherName |
Bureau of Indian Standards
|
| Status |
Current
|
| Standards | Relationship |
| IEC 61511-3:2016 | Identical |
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