EN 61508-1:1998 Functional safety of electrical/electronic programmable electronic safety related systems. General requirements
EN 61508-2:2000 Functional safety of electrical/electronic/programmable electronic safety related systems. Requirements for electrical/electronic/programmable electronic safety-related systems
EN 61508-3:1998 Functional safety of electrical/electronic programmable electronic safety related systems: Software requirements
ISO 13849-1:2008 Safety of machinery. Safety-related parts of control systems. Part 1: General principles for design
IEC 62061: Safety of machinery. Functional safety of safety-related electrical, electronic and programmable electronic control systems