Draft IEC1508-Functional safety. safety-related systems(parts 1 to 7)
CENELEC pr EN 50126 Railway Applications. The specification and demonstration of dependability, reliability, availability, maintainability and safety(RAMS)
CENELEC pr EN 50128 Railway Applications. Software for railway control and protection systems
CENELEC pr EN 50129 Railway Applications. Safety related electronic railway control and protection Systems
Safety related software for railway singnalling. RIA Technical Specification. 23