olemus
ohutustervikluse mõõt, enamasti üks neljast IEC 61508 määratletud tasemest
= a measure of safety integrity, usually one of the four levels defined in IEC 61508

ülevaateid
https://en.wikipedia.org/wiki/Safety_integrity_level

https://www.linkedin.com/pulse/safety-integrity-level-sil-explained-simply-john-kingsley

https://www.exida.com/training/webinars/pdf/Understanding-the-How-Why-and-What-of-a-Safety-Integrity-Level-(SIL).pdf

http://www.hse.gov.uk/Research/rrpdf/rr216.pdf

https://cms.esi.info/Media/documents/Peppe_SILmanual_ML.pdf

standardid
https://www.iso.org/obp/ui/#iso:std:iso:8102:-6:ed-1:v1:en