Interstate system for ensuring the uniformity of measurements. Weight amounts of the standard materials for preparation of the buffer solutions - operational pH standards of 2-nd and 3-rd classes. The technical and the metrological characteristics. Methods of them
United power system and isolated power systems. Relay protection and automation. Automatic emergency control of electric power systems. Automatic overfrequency protection devices. Norms and requirements
Technical requirements to the air interface of the wideband radio access system (WBRAS). The organization of protocols and algorithms of work on data link and physical levels. Main parameters and technical requirements
