AS ISO 10545.2:2020 Ceramic tiles Method 2: Determination of dimensions and surface quality. 7.2.2 Calibrating plate, of accurate dimensions and with straight, flat sides. 7.3 Test specimens Sampling is done as follows: — For tiles with area, A = 60 cm, and the ratio between the longer edge and the shorter edge >= 3, only report 5L and percent deviation [see Figure 3 b)]. 8 Measurements of surface flatness (curvature and warpage) NOTE Measurements of surface flatness are not possible where the accuracy of the feeler gauge measurement would be impacted due to surface characteristics of the tile.AS ISO 10545.2 pdf download.
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