Safety Integrity Level (SIL)

USE “SEARCH” TAB ON the top right side FOR ALL INSTRUMENTATION RELATED TOPICS

Safety Integrity Level (SIL) Classification

sil9a

5 Classes of demand ( D)

D0: negligible demand rate; the scenario has not been heard of in industry;

D1: the interval between demands is more than 20 years; the scenario is unlikely to occur during the lifetime of the platform, but has been heard of in industry;

D2: the interval between demands is 4 to 20 years; the scenario is likely to occur during the lifetime of the platform or has already occurred before in the platform;

D3: the interval between demands is 6 months to 4 years; the scenario is likely to occur in the time period between two major stops;

D4: the interval between demands is less than 6 months; the scenario occurs several times per year on the platform

Risk Matrix to Determine Personal SIL Level

sil9b

 

Correction Factor-Injury:

a)Averting the Danger

sil5

b) Exposure Time

sil6

c) Mitigation

sil7

Risk Matrix to Determine Economic SIL Level

sil8

Risk Matrix to Determine Environmental SIL Level:

sil9

 

For industrial safety related topics click on the links below

https://kishorekaruppaswamy.in/2012/04/04/chemical-hazard-pictograms/

 

https://kishorekaruppaswamy.in/2012/01/18/ingress-protection/

 

https://kishorekaruppaswamy.in/2017/02/23/safety-integrity-level-sil/

 

https://kishorekaruppaswamy.in/2017/11/20/hydrogen-sulphide-h2s/

 

https://kishorekaruppaswamy.in/2017/12/17/hazardous-area-classification/

 

23 thoughts on “Safety Integrity Level (SIL)

  1. Pingback: Hazardous area classification | Kishore Karuppaswamy

  2. Pingback: Hydrogen Sulphide H2S | Kishore Karuppaswamy

  3. Pingback: Chemical Hazard Pictograms | Kishore Karuppaswamy

  4. Pingback: Ingress protection | Kishore Karuppaswamy

  5. Pingback: My Post till now | Kishore Karuppaswamy

  6. Pingback: All my posts till now | Kishore Karuppaswamy

  7. Pingback: A typical Foundation Field bus wiring diagram | Kishore Karuppaswamy

  8. Pingback: Instrumentation related to a motor driven pump | Kishore Karuppaswamy

  9. Pingback: Calibration of Temperature transmitter zero trimming | Kishore Karuppaswamy

  10. Pingback: Painting Procedure | Kishore Karuppaswamy

  11. Pingback: Instrumentation Cable design specification | Kishore Karuppaswamy

  12. Pingback: Acceptable accuracy ranges of Instruments | Kishore Karuppaswamy

  13. Pingback: Standard Power supply requirements for Instrumentation devices | Kishore Karuppaswamy

  14. Pingback: General design requirements of Instrumentation part 2 | Kishore Karuppaswamy

  15. Pingback: AK ENCON ENGINEERING SERVICES | Kishore Karuppaswamy

  16. Pingback: Bastard Esterraj Stephen and MC GSN Raju | Kishore Karuppaswamy

  17. Pingback: Boiler | Kishore Karuppaswamy

  18. Pingback: General design requirements of Instrumentation part 5 | Kishore Karuppaswamy

  19. Pingback: All my posts till now | kishore koduvayur

  20. Pingback: AS-i (Actuator sensor-Interface Protocol) | Kishore Karuppaswamy

  21. Pingback: Flow transmitter DP type | Kishore Karuppaswamy

  22. Pingback: Profibus | Kishore Karuppaswamy

  23. Pingback: Calibration of siemens sipart PS2 | Kishore Karuppaswamy

Leave a Reply