Electronic measuring apparatus and replacement parts therefor, for research, measuring, and testing of substances, oleaginous substances, fluid substances, oleaginous fluid substances, lubricants, oleaginous lubricants, fluid lubricants, and fluid lubricants having liquid and vapor phases; electronic measuring apparatus and parts therefor, for research, measuring, and testing of substances, oleaginous substances, fluid substances, oleaginous fluid substances, fluid lubricants, and fluid lubricants having liquid and vapor phases for determining corrosion of a substance under an electric or an electromagnetic current or flux; downloadable computer software for research, measuring, and testing of substances, oleaginous substances, fluid substances, oleaginous fluid substances, lubricants, oleaginous lubricants, fluid lubricants, and fluid lubricants having liquid and vapor phases; downloadable computer programs used for operating electronic measuring apparatus and replacement parts therefor, for research, measuring, and testing of substances, oleaginous substances, fluid substances, oleaginous fluid substances, fluid lubricants, and fluid lubricants having liquid and vapor phases for determining corrosion of a substance under an electric or an electromagnetic current or flux
Electrical and Scientific Apparatus