State system for ensuring the uniformity of measurements. State primary standard and all-union verification schedule for means measuring mass flow of liquid within the range of 1x10 in minus 3 degree up to 2x10 in 3 degree kg/s
Image intensifier and image converter tubes. Method of measuring sensitivity of the photocathode to white light and to white light with selective light filter
Determination of certain substances in electrotechnical products. Part 3-1. Screening. Lead, mercury, cadmium, total chromium and total bromine using X-ray fluorescence spectrometry
