[en] The ongoing program to develop analytical piping benchmark solutions for the verification of piping analysis methods has been extended to the consideration and use of physical test results. This report provides a description of the first endeavors in this effort. Specifically the results of benchmark evaluations for a laboratory tested piping system undergoing forced seismic excitation and an in situ tested power plant piping run executing free vibrations are described. The correlations of results for the laboratory tested piping was judged to be good with some exceptions. The correlation for the in situ tests were judged to be poor. Comparisons between predicted and test measured results are provided. The performance of this effort depended on the cooperation of the Electric Power Research Institute (EPRI) and their contractor ANCO Engineers, Inc. which provided all experimental data