In the diploma thesis, we carried out a quality analysis of the measured quantities on used prisms that have been in use for a long time. Three different types of prisms were included in the analysis, namely the Leica GPH1P precision prism, the Leica GPR121 prisms and the Goecke 46-MP mini prisms. The reference measured quantities represent measurements on precise prisms, measurements against Leica GPR121 and Goecke 46-MP prisms were treated as test measurements. In addition to the presentation of the implementation of measurements on the test field, the processing of measurements and the results of the calculation of differences in the task, the main results are the analysis and statistical evaluation of the results. All the results of the analyses were presented numerically in tables and graphically with the help of graphs. We found that the deviations of test prisms Leica GPR121 with respect to the reference values differ only slightly, so test prisms can be used for engineering measurements in the future. The impact of exposure to a wide variety of influences on the Goecke 46-MP mini prisms was such that they were no longer useful for precision surveying engineering measurements.
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