BS PD IEC/TS 61508-3-1 – Functional safety of electrical/electronic/programmable electronic safety-related systems
BS PD IEC/TS 61508-3-1:2016 presents requirements by the application of which pre-existingsoftware elements may be claimed to be proven-in-use for all or a part of safety function(s) ofSIL1 or SIL 2.