ASTM D1133 Kauri-Butanol Value of Hydrocarbon Solvents
Kauri-butanol is a clear, standardized solution used to estimate the ability of solvents to dissolve gums, oils and resins. In general, higher values correspond to higher solvency abilities. This test determines kauri-butanol values.
The sample is titrated into the clear kauri-butanol reagent, causing the resulting mixture to turn cloudy. The end point is determined at the point of obscurity. The value obtained is compared to toluene and heptane standards and reported as the kauri-butanol value.