Information technologies. Telecommunications management network. Enhanced Telecom Operations Map (eTOM). Process decompositions and descriptions. Operations. Service management and operations. eTOM level 3 processes. Process 1.1.2.4 - Service quality management
State system for ensuring the uniformity of measurements. State primary standard and state verification schedule for measuring instruments of direct current strength over range from 1x10 in minus 16 degree up to 30A