The object of this document is to show the results obtained performing a 3rd benchmark calculation for the Rupther test in creep conditions on a notched tube. This exercise is part of task 3 organised in the framework of the REVISA (Reactor Vessel Integrity in Severe Accidents) project (EU FI4S-CT96-0024). The objective of this project is to compare predictive tools for the behaviour of the PWR pressure vessel in case of severe accident such as core melting. Rupther is a simple analytical experiment in which a notched tube is subjected to internal pressure and thermal loading. The thermal loading is an axial gradient and the upper temperature is very high, 1100…C in the present case. The internal pressure is maintained at 0.8 MPa. This benchmark follows calculation exercises performed on tubes without notches. In the present report, the following arguments are provided: a summary of the FEM analysis of the Rupther Test#15 experiment, an evaluation of the rupture time on the basis of different creep damage criteria, a sensitivity analysis based on different methods for the identification of the material parameters and different creep laws.