In vitro diagnostic medical devices. Measurement of quantities in biological samples. Metrological traceability of values assigned to calibrators and control materials
State system for ensuring the uniformity of measurements. Reference systems for certification reference materials composition of magistral natural gas and substitute natural gas. The method of verification
United power system and isolated power systems. Relay protection and automation. Automatic emergency control of modes of power systems. Pulse and long-term unloading of turbines. General requirements and test procedure
