Abstract: A method is provided to determine a remoteness of an event of creation of a man-made object made of a cellulose-containing material or a man-made object having on its surface fragments made of a cellulose-containing material and having surface areas with no coating and areas with a coating by means of measured and calculated relative changes of the cellulose parameters in surface layer of the cellulose-containing material at some pair of said surface areas with no coating and under the coating at the moment of study starting and at the moment after a predetermined time interval sufficient for any changes of said cellulose parameters being taken place and calculate the remoteness of an event of creation of a man-made object or its surface fragments according to the time point when there were no said relative changes.

Abstract: The invention relates a method for determining the time dating event of creation of an object made of a cellulose containing material and having on its surface areas with a coating and without coating, in which the results of measurements of the components of nuclear-magnetic resonance relaxation are used for determining the parameters of free induction signals and the density of protons in cellulose samples taken from the cellulose containing material surface layer with coated and uncoated areas, the value G of relative changes of the cellulose parameters are calculated using the formula: G=K2/K2+Pr2/Pr1, where: Pr1 and Pr2 is the density of protons in cellulose, on the area having no coating and the area with a coating, respectively, g/sm3106; K1 and K2 are the degrees of crystallinity of the cellulose, on the area having no coating and the area with a coating, respectively, specified by the formula: K=1-5(T2*Ad/T2* Ak), where: T2M and T2 is the relaxation time of the short and long components