Clinical laboratory technologies. Quality control of clinical laboratory tests. Part 1. Limits of allowable errors of the results of the analyte measurements in clinical-diagnostics laboratories
State system for ensuring the uniformity of measurements. Compensated fluid micromanometers with micrometric screw, type MKV-250 . Methods and means of verification
Low-voltage electrical installations. Part 5-54. Selection and erection of electrical equipment. Earthing arrangements, protective conductors and protective bonding conductors
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