A process for separating a viral load from a pancreatin specimen, comprising the process steps: a) producing a liquid pancreatin test sample suitable for centrifugation from the pancreatin specimen without in so doing changing the viral load thereof, b) subjecting at least one defined part of the pancreatin test sample from process step a) to at least one low-speed centrifugation under conditions, under which viruses with sedimentation constants of ≥120 S do not yet form a pellet, c) discarding any solid deposit optionally arising in process step b) during low-speed centrifugation and retaining a pancreatin test sample supernatant, d) subjecting at least one defined part of the pancreatin test sample supernatant obtained in process step c) to a first ultracentrifugation in a discontinuous gradient medium, wherein the duration of the first ultracentrifugation and the relative centrifugal force for the first ultracentrifugation are selected such that the viral load is quantitatively transported out of the pancreatin test sample supernatant into a first target fraction situated above or in the boundary layer between the overlying, lowest concentration gradient component and the underlying, next higher concentration gradient component and quantitatively separating the first target fraction optionally including any pellet present after centrifugation containing the viral load from the pancreatin test sample supernatant; e) subjecting the first target fraction obtained in step d) to a second ultracentrifugation whereby said second ultracentrifugation is carried out with a relative centrifugal force higher than the relative centrifugal force of the first ultracentrifugation on a gradient medium of the same type as used in the first ultracentrifugation whereby said gradient medium is a higher concentration gradient medium than the concentration of the lowest concentration gradient component in the first target fraction, and f) obtaining a second target fraction containing the viral load by discarding the upper 75% vol./vol. liquid or more of the upper layer corresponding to the first target fraction and obtaining the lower fraction corresponding to the lower 25% vol./vol. liquid or less of the upper layer and the complete layer of the higher concentration gradient medium excluding any pellet optionally present after centrifugation. a) producing a liquid pancreatin test sample suitable for centrifugation from the pancreatin specimen without in so doing changing the viral load thereof, b) subjecting at least one defined part of the pancreatin test sample from process step a) to at least one low-speed centrifugation under conditions, under which viruses with sedimentation constants of ≥120 S do not yet form a pellet, c) discarding any solid deposit optionally arising in process step b) during low-speed centrifugation and retaining a pancreatin test sample supernatant, d) subjecting at least one defined part of the pancreatin test sample supernatant obtained in process step c) to a first ultracentrifugation in a discontinuous gradient medium, wherein the duration of the first ultracentrifugation and the relative centrifugal force for the first ultracentrifugation are selected such that the viral load is quantitatively transported out of the pancreatin test sample supernatant into a first target fraction situated above or in the boundary layer between the overlying, lowest concentration gradient component and the underlying, next higher concentration gradient component and quantitatively separating the first target fraction optionally including any pellet present after centrifugation containing the viral load from the pancreatin test sample supernatant; e) subjecting the first target fraction obtained in step d) to a second ultracentrifugation whereby said second ultracentrifugation is carried out with a relative centrifugal force higher than the relative centrifugal force of the first ultracentrifugation on a gradient medium of the same type as used in the first ultracentrifugation whereby said gradient medium is a higher concentration gradient medium than the concentration of the lowest concentration gradient component in the first target fraction, and f) obtaining a second target fraction containing the viral load by discarding the upper 75% vol./vol. liquid or more of the upper layer corresponding to the first target fraction and obtaining the lower fraction corresponding to the lower 25% vol./vol. liquid or less of the upper layer and the complete layer of the higher concentration gradient medium excluding any pellet optionally present after centrifugation.