Table 4: Sensitivities of abundance ratios to errors in the atmospheric parameters and in the equivalent widths.
Ratio $\Delta$ $T_{\rm eff}$ $\Delta$ $\log g$ $\Delta$ [A/H] $\Delta v_t$ $\langle N\rangle$ $\Delta$ $E\it W$ Tot.

(+90 K) (+0.2 dex) (+0.1 dex) (+0.1 km s^-1) (dex)

Star IC 4651-146 (Clump)

[Fe/H]I +0.057 +0.011 +0.010 -0.044 111 +0.013 0.051

[Fe/H]II -0.086 +0.107 +0.035 -0.043 12 +0.040

**Table 4:** Sensitivities of abundance ratios to errors in the atmospheric parameters and in the equivalent widths.
Ratio	$\Delta$ $T_{\rm eff}$	$\Delta$ $\log g$	$\Delta$ [A/H]	$\Delta v_t$	$\langle N\rangle$	$\Delta$ $E\it W$	Tot.
	(+90 K)	(+0.2 dex)	(+0.1 dex)	(+0.1 km s^-1)			(dex)
	Star IC 4651-146 (Clump)
[Fe/H]I	+0.057	+0.011	+0.010	-0.044	111	+0.013	0.051
[Fe/H]II	-0.086	+0.107	+0.035	-0.043	12	+0.040

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