- General requirements & tests
- IEC/TS 61496-2 Ed. 2 Safety of machinery
- Electro-sensitive protective equipment
- Part 2:Particular requirements for equipment using Active Optoelectronic Protective Devices
- EN ISO 13849-1 Safety of machinery
- Safety-related parts of control systems
- Part 1: General principles for design.
- IEC/EN 62061 Safety of machinery
- Functional safety related electrical,electronic & programmable electronic control systems
- IEC 61508 Functional safety of electrical/electronic/programmable electronic safety-related systems.
- UL (C+US) for USA and Canada
- ANSI / UL 1998 Software in Programmable Components.