Fourteen Fe I lines |(2.18\,eV\,<\,χ \,<2.4\,eV)| in the centre of disc solar spectrum are analysed using Oxford oscillator strengths of 1 per cent accuracy. The iron abundances and micro turbulence velocities given by these lines are discussed. The five lines with excitation energies 2.40–2.48 eV apparently give a higher abundance than the nine lines of excitation energy 2.18–2.22 eV.
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Blackwell et al. (1982) studied this question.