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. 2021 Feb 27;14(5):1108. doi: 10.3390/ma14051108

Figure 13.

Figure 13

Slip evaluation for four surfaces (PO, PL, SZ, and GR) depending on the test method and associated classification criteria. (a) SRV for dry and wet surfaces versus αob results of the ramp test. (b) Sliding friction coefficient using rubber slider (µR) for dry and wet surfaces versus results of the ramp test. (c) Sliding friction coefficient using leather slider (µL) for dry and wet surfaces versus results of the ramp test. (d) Dry surface µR and µL versus SRV. (e) Wet surface µR and µL versus SRV.