GOST 17433-80: Industrial purity. Compressed air. Grades of contaminationGOST 1770-74: Laboratory volumetric glassware. Cylinders, beakers, measuring flasks, test tubes. General specificationsGOST 18300-87: Technical rectified ethyl alcohol. Specifications...
GOST 17433-80: Industrial purity. Compressed air. Grades of contaminationGOST 1770-74: Laboratory volumetric glassware. Cylinders, beakers, measuring flasks, test tubes. General specificationsGOST 18300-72: Technical rectified ethyl alcohol. Specifications...