Method for testing gasoline for water and alcohol in the presence or absence of the other

摘要

An environmentally compatible method for field testing gasoline, and other liquid hydrocarbons, for the presence of water and/or alcohol in the presence or absence of the other utilizing colorimetric reagents comprising methylene blue dye, anhydrous sodium borate and gentian violet dye in suspension with mineral oil. When alcohol is present a volumetric test using dilute nitric acid is further described to measure its percentage in the fuel.