ISO 13849-1 standard for automation systems
The ISO 13849-1 standard describes safe and proven design solutions for control system safety functions. The recommendations specified in ISO 13849-1 can be considered as minimum requirements for the development of control system safety units, so that the equipment can be marked with the "CE" mark. ISO 13849-1 describes and applies to any type of motion transmission, regardless of its technological nature or origin (electrical, hydraulic, pneumatic, mechanical). The technical documentation, which is developed and compiled according to ISO 13849-1, is mandatory and must be added to the technical file of the equipment when it is put on the market.
EN 
LV