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Assignment of Safety Integrity Levels (SIL) was introduced as a measure of the quality or dependability of a system which has a safety function. It is a statistical representation of a Safety Instrumented System (SIS) when process demand occurs.

  • ERS provides a range of SIL services using varying techniques including:
  • Layer of Protection Analysis (LOPA)
  • Consequence Only
  • Risk matrix
  • Fault Tree Analysis
  • Where specialised software is required, ERS has existing partnerships with organisations that specialise in this field.

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