Radionuclide sources of alpha-, beta- and photon radiation. Technical requirements to standards for the calibration, verification of surface radioactive contamination monitoring devices (monitors)
Safety of household and similar electrical appliances. Part 2-54. Particular requirements for surface-cleaning appliances for household use employing liquids or steam
State system for ensuring the uniformity of measurements. Secondary standards of the units of length, velocity and acceleration by vibration of a solid body. Technique of comparisons
