KS C IEC 61508-4-2010(2020) Functional safety of electrical/electronic/programmable electronic safety-related systems-Part 4:Definitions and abbreviations
2023KS C IEC 61508-4-2023 Functional safety of electrical/electronic/programmable electronic safety-related systems — Part 4: Definitions and abbreviations
0000 KS C IEC 61508-4-2010(2020)
2010KS C IEC 61508-4:2010 Functional safety of electrical/electronic/programmable electronic safety-related systems-Part 4:Definitions and abbreviations