New Method for State Express Control of Unstable Hydrocarbon Media and Their Mixtures

All requirements for the express control of unstable hydrocarbon media and devices their implementation to obtain reliable measurement results are determined. The features volatile mixtures with industrial small-sized refractometers operating on effect total internal reflection considered. new method determining components ratio between concentrations them in a mixture is developed. There no analogs this world. This allows presence one medium another 1% 99% or more. design refractometer has been developed, which makes it possible measure refractive index visible light. In refractometer’s newly developed design, range condensed from 1.2500 1.7000 (measurement error 0.0004). New dependencies change density ρ various grades fuel (in Russian Federation) temperature T have established. After adjusting coefficients, these can be used produced world countries. research different gasoline types presented.