GOST 7601-1978 Physical optics. Terms, letter symbols and definitions of basic quantities*, 2023-12-21 Update
GOST 7721-1989 Illuminants for colour measurements. Types. Technical requirements. Marking
GOST 8.205-1990 State system for ensuring the uniformity of measurements. State verification schedule for measurement means of chroma coordinates and chromaticity coordinates
GOST R 8.827-2013 history
2013GOST R 8.827-2013 State system for ensuring the uniformity of measurements. Method of measuring and specifying Colour Rendering Index of light sources