TY - JOUR N2 - This paper presents methods of separating the plateau part for various types of two-process profiles, having the traces of two processes. The traditional method based on the plateau-valley threshold, according to the ISO 13565-3 standard, is not always sufficient, since the valley portion can include plateau roughness. Starting and finishing points of each plateau in the measured profiles should be determined. The procedure found in the technical literature depends on setting not only the plateau-valley threshold but also a lower threshold. This approach was a little modified for profiles that contain both random and deterministic topography components. A new procedure of determination of the lower threshold was proposed for stratified profiles containing two deterministic parts. The valleys can be characterized by their widths and the distance between them. In addition, a description of the material probability curve is proposed. L1 - http://journals.pan.pl/Content/106351/PDF/10.1515mms-2016-0046%20paper%2009.pdf L2 - http://journals.pan.pl/Content/106351 PY - 2016 IS - No 4 EP - 602 DO - 10.1515/mms-2016-0046 KW - surface topography KW - two-process texture KW - material ratio A1 - Pawlus, Paweł A1 - Graboń, Wiesław PB - Polish Academy of Sciences Committee on Metrology and Scientific Instrumentation VL - vol. 23 DA - 2016.12.15 T1 - Distinguishing the Plateau and Valley Components of Profiles From Various Types of Two-Process Textures SP - 593 UR - http://journals.pan.pl/dlibra/publication/edition/106351 T2 - Metrology and Measurement Systems ER -