System of standards on information, librarianship and publishing. Stock-taking units of libraries and scientific of technical information centres collections
State system for ensuring the uniformity of measurements. Testing equipment for determination of resistance to clogging for respiratory protective devices particle filters. Verification method
United power system and isolated power systems. Relay protection and automation. Distance and overcurrent protection of power lines and utilities 110–220 kV. Functional requirements
Low voltage distribution systems up to 1000 V a.c. and 1500 V d.c. Electrical safety. Equipment for testing, measuring or monitoring of protective measures. Part 2. Insulation resistance
