\begin{table}%t1 \caption{\label{tab1}IRS spectrum of \object{NGC~6210}.} \small%\centerline { \begin{tabular}{lrcc} \hline \hline &&& \\[-8pt] Identification & $\lambda$($\mu$m) & Intensity$^{\dagger}$ & I/H$\beta$ \\ \hline \ion{H}{i}(9-6)+\ion{[K}{iv]} & 5.94 & 79.6 $\pm$ $28$ & 0.72 \\ \ion{H}{i} (12-7) & 6.77 & 17 $\pm$ 0.4 & \\ \ion{[Ar}{ii]} & 6.98 & 83 $\pm$ 4.5 & 0.76 \\ \ion{[Na}{iii]} & 7.31 & 53 $\pm$ 2.9 & 0.47 \\ \ion{H}{i}(6-5) & 7.47 & 301 $\pm$ 17 & \\ \ion{[Ar}{iii]} & 8.99 & 1610 $\pm$ 52 & 14.7 \\ \ion{[S}{iv]} & 10.506 & 16700 $\pm$ 250 & 152 \\ \ion{H}{i}(9-7) & 11.305 & 48.2 $\pm$ 1.2 & \\ \ion{[Cl}{iv]} & 11.757 & 90.1 $\pm$ 3.7 & 0.82 \\ \ion{H}{i} (7-6+11-8) & 12.368 & 114 $\pm$ 4 & \\ \ion{[Ne}{ii]} & 12.808 & 498 $\pm$ 40 & 4.55 \\\ \ion{H}{1} (13-9) & 14.180 & 7.1 $\pm$ 0.9 & \\ \ion{[Cl}{ii]} & 14.359 & 4.74 $\pm$ 0.6 & 0.043 \\ \ion{[Ne}{iii]} & 15.548 & 18500 $\pm$ 1500 & 169 \\ \ion{H}{i} (10-8) & 16.210 & 12.4 $\pm$ 2.4 & \\ \ion{[P}{iii]} & 17.885 & 22.7 $\pm$ 2.2 & 0.21 \\ \ion{[S}{iii]} & 18.707 & 2820 $\pm$ 120 & 25.7 \\ \ion{[Cl}{iv]} & 20.310 & 48.7: $\pm$ 6.6 & 0.45: \\ \ion{[Ar}{iii]} & 21.814 & 79.5 $\pm$ 10.5 & 0.72 \\ \ion{[Fe}{iii]} & 22.924 & 31.9 $\pm$ 3.9 & 0.29 \\ \ion{[O}{iv]} & 25.884 & 777 $\pm$ 21 & 7.10 \\ \ion{[Fe}{iii]} & 33.014 & 34.5: $\pm$ 2.7 & 0.31 \\ \ion{[S}{iii]} & 33.470 & 890 $\pm$ 10.7 & 8.14 \\ \ion{[Si}{ii]} & 34.809 & 33.6 $\pm$ 6.3 & 0.30 \\ \ion{[Ne}{iii]} & 36.001 & 1590 $\pm$ 24 & 14.5 \\ \hline \end{tabular}} \medskip $^{\dagger}$ Intensities measured in units of 10$^{-14}$~erg~cm$^{-2}$~s$^{-1}$. The intensities below 19~$\mu$m have been increased by a factor of~1.77 to bring them on the same scale as the LH~intensities measured through a larger diaphragm. The intensities below 10~$\mu$m are measured with the low resolution instrument and are brought to the same scale by matching the \ion{[S}{iv]} and [\ion{Ne}{ii}]~lines. \\ : Indicates an uncertain value. \\ The measured line intensity is given in Col.~3. The last column gives the ratio of the line intensity to~H$\beta$(=100). \end{table}