**Table 7:** Results from diagnostic diagrams^a
Galaxy	"a/A''	"a/A''		$R_{\rm [OIII]}$	$R_{\rm [OIII]}$	$R_{\rm line-ratios}$	$R_{\rm NLR}$
	Distance ( $^{\prime \prime }$ )	Orientation		Literature ( $^{\prime \prime }$ )	Our Data ( $^{\prime \prime }$ )	Our data ( $^{\prime \prime }$ )	Our Data ( $^{\prime \prime }$ , pc)
			/
IC 5063	1	NW	/	SE	6^b	20	13	>13 (2860)
NGC 7212	1	SE	/	NW	2.4^b	12	10	>10 (5040)
ESO 362-G008	1	SE	/	NW	11.9^c	4	3	>3 (960)
NGC 3281	1.4	SW	/	NE	3^b	9	5	>5 (1180)
NGC 5643	1	E	/	W	6^d	16	16	11 (1045)
NGC 1386	1	S	/	N	3^b	12	10	6 (310)

^a The second column gives the distance from the centre to the first spectra (marked with the letters "a'' and "A'' in the diagnostic diagrams). In the third column, the orientation of the small and capital letters is listed. The maximum [O III] radius ( S/N > 3) at the same PA taken from literature is given in the fourth column. We also give the [O III] radius ( S/N > 3) observed from our spectra (Col. 5). In the sixth column, the radius is given until which we were able to plot line ratios in the diagnostic diagrams. In the last column, the radius of the NLR as determined from the diagnostic diagrams is given in $^{\prime \prime }$ and, in brackets, pc, respectively. The two objects with a clear transition between NLR and H II region are marked in bold.

^b Taken from HST image of Schmitt et al. (2003).

^c Taken from groundbased image of Mulchaey et al. (1996).

^d Taken from HST image of Simpson et al. (1997).

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