FIELD: physics, measuring. ^ SUBSTANCE: group of inventions concerns determination of an oxidising of fuel or mineral oil. Method for the accelerated determination of fuel or mineral oil oxidising, includes a test premise (2) in the pressure head tank (1) and its finishing by means of definition of an oxidising of fuel or, at least, one resort for the change of temperature disposed in the pressure head tank (1) and-or in test (2) to prestressly set temperature above 100C, thus check pressure in the pressure head tank and on change of this pressure spot an oxidising of fuel or mineral oil. Are presented also the device for the accelerated definition of an oxidising of fuel or mineral oil and a machine-readable data carrier on which the computer program is maintained, allowing to carry out the above-stated expedient. Increase of determination reliability is reached. ^ EFFECT: increase of determination reliability. ^ 7 cl, 5 dwg
