Figure 5: Dependence of static dielectric constant (ε's) on peroxide value (PV) for oils treated at 65 °C (- - - -) for 432 hr and at 180°C for 28 hr (-). Legend: □AR 65°C; ○ CH 65°C; Δ OL 65°C; ★ RM 65°C; ▽RS 65°C; ◊ SF 65°C; ■ AR 180°C; ● CH 180°C; ▲ OL 180°C; ▼ RS 180°C; ◆ SF 180°C.