PNST 516-2021 Information technology. Internet of things. LoRaWAN RU specification
International Telecommunication Union (ITU), ru+
ITU-T Q.3223-2009 Requirements and protocol for the interface between a transport location management physical entity and a policy decision physical entity (Ru Interface) Study Group 11
American Society of Mechanical Engineers (ASME), ru+
ASME 2336-2001 F-Number Grouping for Titanium-Ruthenium Alloy (Ti 0.1 Ru) Classification UNS R52255 Filler Metal Section IX
IX-UIC, ru+
UIC CODE 476 OR-2011 Procedures for the Accelerated Transfer of Freight Trains Between Cooperating Railway Undertakings (RUs) at Handover Points