GOST 19904-90

System of national standards for quality of telecommunication services. Quality of services of local, long-distance and international telephone communication. Normative values for quality indices of telephone calls

House hold apparatus used liquid fuel. General specifications

Pinch pipeline valves. Main parameters

Industrial cleanliness. Methods for lubricating and cooling liquids cleaning from mechanical contaminations. General

Surge overvoltages and surge protection in low-voltage a.c. power systems. General basic information

The radiosystems of cosmic apparatus. The radiophysical model of the solar plasma