GOST 12.4.026-2015 System of standards for occupational safety. Safety colours, safety signs and signal marking. Purpose and rules of application. General technical requirements and characteristics. Methods of tests*, 2023-12-23 Update
GOST 17.4.2.01-1981 Nature protection. Soils. Nomenclature of sanitary conditions indices
GOST R 53521-2009 Natural gas processing. Terms and definitions*, 2023-12-23 Update