BS IEC 61511-3 : 2003 AMD 15578

Name: BS IEC 61511-3 : 2003 AMD 15578
Brand: BSI

Superseded

View Superseded by

FUNCTIONAL SAFETY - SAFETY INSTRUMENTED SYSTEMS FOR THE PROCESS INDUSTRY SECTOR - PART 3: GUIDANCE FOR THE DETERMINATION OF THE REQUIRED SAFETY INTEGRITY LEVELS

Superseded date

16-05-2005

Published date

23-11-2012

Publisher

British Standards Institution

FOREWORD
INTRODUCTION
1 Scope
2 Terms, definitions and abbreviations
3 Risk and safety integrity - general guidance
  3.1 General
  3.2 Necessary risk reduction
  3.3 Role of safety instrumented systems
  3.4 Safety integrity
  3.5 Risk and safety integrity
  3.6 Allocation of safety requirements
  3.7 Safety integrity levels
  3.8 Selection of the method for determining the
      required safety integrity level
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)
Figures
Tables

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	GEL/65/1
DevelopmentNote	Supersedes 99/244276 DC. (05/2003) Also available as a part of BS KIT 127. (06/2004) Renumbered and superseded by BS EN 61511-3. (05/2005)
DocumentType	Standard
PublisherName	British Standards Institution
Status	Superseded
SupersededBy	BS EN 61511-3:2017
Supersedes	99/244276 DC : DRAFT OCT 1999

Standards	Relationship
IEC 61511-3:2016	Identical

IEC 61511-1:2016+AMD1:2017 CSV	Functional safety - Safety instrumented systems for the process industry sector - Part 1: Framework, definitions, system, hardware and application programming requirements
DIN V 19250:1994-05	CONTROL TECHNOLOGY; FUNDAMENTAL SAFETY ASPECTS TO BE CONSIDERED FOR MEASUREMENT AND CONTROL EQUIPMENT