Top panel: RGS spectrum of ESO 113-G010, fitted using the two-phase xabsmodel described in Sect. 4 and SED E in Fig. 4. The data are shown in red and the model in blue. Residuals of the fit, (Observed − Model)/Model, are displayed below the panel. Bottom panel: the absorption components of the best-fit RGS model as described in Sect. 4, with the best-fit parameters of the model given in Table 1. The blue component shows the Galactic absorption applied to the power-law continuum (in black). The two warm absorber phases (Phase 1 in red and Phase 2 in green) are applied separately to the Galactic-absorbed continuum, showing how each phase contributes to the absorption.