Table 1-Icing Conditions for Ground Tests
Condition | Total air temperature | Water concentration (minimum) | Mean effective particle diameter | Demonstration |
1. Rime ice condition | 0 to 15 °F (18 to -9 °C) | Liquid-0.3 g/m3 | 15-25 microns | By test, analysis or combination of the two. |
2. Glaze ice condition | 20 to 30 °F (-7 to -1 °C) | Liquid-0.3 g/m3 | 15-25 microns | By test, analysis or combination of the two. |
3. Large drop condition | 15 to 30 °F (-9 to -1 °C) | Liquid-0.3 g/m3 | 100 microns (minimum) | By test, analysis or combination of the two. |
14 C.F.R. §25.1093