Russian standards
Butterfly valves and spherical valves for hydraulic turbines. Technical specifications
Document status: Active
Safety valves of steam and hot-water boilers. Technical requirements
Document status: Active
Foil-clad electrical insulating materials for manufacture of printed plates. Prepreg for use as bonding sheet material in the fabrication of multilayer printed boards. Specifications
Document status: Active
Electrical insulation systems. Methods of multi-factor functional tests
Document status: Active