ASTM D6432

ASTM D6432 is a standardized test used to measure the viscosity of petroleum products, specifically how thick or fluid they are at a given temperature. It employs an instrument called a rotational viscometer, where a spindle rotates within the sample, and the resistance it encounters indicates its viscosity. This test helps manufacturers and engineers ensure that oils and fuels meet quality and performance standards by providing accurate, repeatable viscosity measurements essential for proper system operation and efficiency.