\begin{table}%T12 \caption{\label{table12}Total abundances.} \small%\centerline { \begin{tabular}{lcccccccc} \hline\hline & \multicolumn{8}{c}{CELs (12 + log(X/H))} \\ \hline & \multicolumn{2}{c}{PB8} & \multicolumn{2}{c}{NGC~2867--1} & \multicolumn{2}{c}{NGC~2867--2} & PB6--1 & PB6--2 \\ Ion & {\tsq} = 0.00 & {\tsq}~$>$ 0.00 & {\tsq} = 0.00 & {\tsq}~$>$ 0.00 & {\tsq} = 0.00 & {\tsq}~$>$ 0.00 & {\tsq} = 0.00 & {\tsq} = 0.00 \\ \hline He & 11.09~$\pm$~0.01 & 11.09~$\pm$~0.01 & 11.04~$\pm$~0.01 & 11.04~$\pm$~0.01 & 11.08~$\pm$~0.01 & 11.08~$\pm$~0.01 & 11.28~$\pm$~0.01 & 11.25~$\pm$~0.01 \\ O & 8.76~$\pm$~0.04 & 9.11~$\pm$~0.08 & 8.56~$\pm$~0.03 & 8.73~$\pm$~0.04 & 8.59~$\pm$~0.03 & 8.83~$\pm$~0.05 & 8.51~$\pm$~0.04 & 8.58~$\pm$~0.04 \\ N & 8.21~$\pm$~0.11 & 8.55~$\pm$~0.11 & 8.09~$\pm$~0.08 & 8.25~$\pm$~0.09 & 8.10~$\pm$~0.06 & 8.33~$\pm$~0.08 & 8.68~$\pm$~0.09 & 8.71~$\pm$~0.09 \\ Ne & 8.13~$\pm$~0.07 & 8.52~$\pm$~0.12 & 7.87~$\pm$~0.06 & 8.05~$\pm$~0.06 & 7.93~$\pm$~0.06 & 8.20~$\pm$~0.07 & 8.05~$\pm$~0.11 & 8.04~$\pm$~0.11 \\ S & 7.31~$\pm$~0.10 & 7.80~$\pm$~0.10 & 6.63~$\pm$~0.04 & 6.82~$\pm$~0.05 & 6.65~$\pm$~0.04 & 6.94~$\pm$~0.06 & 6.51~$\pm$~0.07 & 6.48~$\pm$~0.09 \\ Cl & 5.30~$\pm$~0.08 & 5.64~$\pm$~0.10 & 5.09~$\pm$~0.09 & 5.24~$\pm$~0.09 & 5.12~$\pm$~0.06 & 5.36~$\pm$~0.08 & 5.58~$\pm$~0.14 & 5.43~$\pm$~0.09 \\ Ar & 6.64~$\pm$~0.04 & 6.93~$\pm$~0.07 & 6.18~$\pm$~0.03 & 6.31~$\pm$~0.04 & 6.14~$\pm$~0.04 & 6.36~$\pm$~0.06 & 6.18~$\pm$~0.05 & 6.22~$\pm$~0.04 \\ \hline & \multicolumn{8}{c}{ORLs (12 + log(X/H))} \\ \hline O$^{a}$ & 9.16~$\pm$~0.02 & 9.16~$\pm$~0.02 & 8.73~$\pm$~0.03 & 8.73~$\pm$~0.03 & 8.83~$\pm$~0.04 & 8.83~$\pm$~0.04 & \nodata & \nodata \\ C$^{b}$ & 8.85~$\pm$~0.03 & 8.85~$\pm$~0.03 & \nodata & \nodata & \nodata & \nodata & \nodata & \nodata \\ C$^{c}$ & \nodata & \nodata & 9.17~$\pm$~0.03 & 9.17~$\pm$~0.03 & 9.32~$\pm$~0.03 & 9.32~$\pm$~0.03 & 9.46: & 9.54~$\pm$~0.10 \\ \hline \end{tabular}} \smallskip $^{a}$ For PB~8, O$^{++}$/H$^+$ derived from ORLs and O$^+$/H$^+$ from CELs and {\tsq}. For NGC~2867 we have adopted an ICF to correct for unseen ionization stages (see text).\\ $^{b}$ C/H~=~ICF(C)~$\times$~C$^{++}$/H$^{+}$. \\ $^{c}$ C/H~=~ICF(C)~$\times$~(C$^{++}$/H$^+$+C$^{3+}$/H$^+$+C$^{4+}$/H$^+$). \end{table}