Russian standards PDF
Rolling bearings. General specifications
Document status: Replaced by GOST 520-2011
International Electrotechnical Vocabulary. Electrical and electronic measurements and measuring instruments. Part 311. General terms relating to measurements. Part 312. General terms relating to electrical measurements. Part 313. Types of electrical measuring instruments. Part 314. Specific terms according to the type of instrument
Document status: Active
Plugs, socket-outlets and couplers for industrial purposes. Part 1. General requirements
Document status: Active
Low-voltage switchgear and controlgear. Part 5-1. Control circuit devices and switching elements. Electromechanical control circuit devices
Document status: Active
Electromechanical elementary relays. Part 7. Test and measurement procedures
Document status: Active