GOST 8711-1993 Direct acting indicating analogue electrical measuring inctruments and their accessories. Part 2. Special requirements for ammeters and voltmeters
GOST R 55392-2012 Lighting fixtures and complexes. Terms and definitions*, 2023-12-23 Update
GOST R 56228-2014 Lighting installations. Terms and definitions*, 2023-12-23 Update
PNST 211-2017 history
2017PNST 211-2017 LED plants irradiation. Measurement methods