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Adjustable speed electrical power drive systems. Part 9-2. Energy efficiency of power drive systems, electric motor starters, power electronics and electromechanical systems based on them. Energy efficiency indicators for power drive systems and motor starters
Document status: Active
Low-voltage surge protective devices. Part 32. Surge protective devices connected to the d.c. side of photovoltaic installations. Selection and application principles
Document status: Active
State system for ensuring the uniforming of measurements. State special standard and state verification schedule for means measuring spectral density of energy radiance of optical radiation in the wavelength range of 0,04-0,25 um
Document status: Replaced by GOST 8.197-2005
Plastics piping systems. Injection-moulded thermoplastics fittings. Methods for determination of fittings appearance alteration after heating
Document status: Active
Air filters for general ventilation. Part 4. Conditioning method to determine the minimum fractional test efficiency
Document status: Replaced by GOST R 71490-2024
Rolling bearings. Сylindrical roller bearings without inner or outer ring. Classification, guidance for application and operation
Document status: Active