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/m 3 | 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/m 3 | 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/m 3 | 100 microns (minimum) | By test, analysis or combination of the two. |