Table 4: Spectral fits with an absorbed power law continuum in two energy bands (2-5 keV and 0.3-2 keV). Galactic absorption ( $N_{\rm H}^{\rm Gal}$ ) and intrinsic absorption ( $N^{\rm in}_{\rm H}$ ) of the QSO in its rest frame are expressed in 10²⁰ cm^-1. (^a) absorption edge(s) added to the continuum model (see parameter values in Table 6).
Source $N_{\rm H}^{\rm Gal}$ $\Gamma_{2-5}$ $\chi^{2}$ /d.o.f. P( $\chi^{2}$ ) $N^{\rm in}_{\rm H}$ $\Gamma_{0.3-2}$ $\chi^{2}$ /d.o.f. P( $\chi^{2}$ )

I Zw1 4.94 2.30 $\pm$ 0.05 167.4/132 2.0 ^(a)7.8 $\pm$ 1.0 2.63 $\pm$ 0.06 352.8/324 13.0

PG 0804+761 3.01 2.19 $\pm$ 0.09 161.5/196 96.6 ^(a)2.3 $\pm$ 1.1 2.51 $\pm$ 0.08 248.6/220 9.0

PG 0947+396 1.55 1.81 $\pm$ 0.12 128.3/122 33.1 ^(a)2.1 $\pm$ 1.4 2.52 $\pm$ 0.09 285.1/312 86.0

PG 0953+414 0.82 2.04 $\pm$ 0.11 55.7/75 95.2 <0.4 2.59 $\pm$ 0.03 337.0/278 0.9

PG 1048+342 1.94 1.83 $\pm$ 0.12 85.8/81 33.7 <0.8 $\rm 2.40^{+0.06}_{-0.02}$ 239.3/267 8.5

PG 1114+445 1.62 1.38 $\pm$ 0.08 123.3/131 67.2 ^(a)<2.0 $\rm 1.56^{+0.12}_{-0.03}$ 267.9/213 0.6

PG 1115+407 1.91 2.27 $\pm$ 0.15 58.9/81 96.9 ^(a) $\rm 2.1^{+1.7}_{-1.3}$ 2.92 $\pm$ 0.09 268.0/300 90.8

PG 1116+215 1.29 2.26 $\pm$ 0.16 98.6/80 7.8 <0.5 2.71 $\pm$ 0.04 263.6/294 89.8

PG 1202+281 1.70 1.65 $\pm$ 0.11 68.9/78 76.0 ^(a)<0.3 2.28 $\pm$ 0.03 309.9/264 2.7

PG 1244+026 1.78 2.52 $\pm$ 0.18 96.5/79 8.8 11.5 $\pm$ 0.1 3.72 $\pm$ 0.09 407.6/296 0

PG 1307+085 2.10 1.40 $\pm$ 0.16 74.5/81 68.3 ^(a)<0.3 2.22 $\pm$ 0.05 268.8/219 1.2

PG 1309+355 1.02 1.76 $\pm$ 0.18 51.8/62 81.8 ^(a)<0.5 2.26 $\pm$ 0.05 197.8/212 75.0

PG 1322+659 2.00 2.23 $\pm$ 0.20 52.8/57 63.2 <0.7 $\rm 2.99^{+0.05}_{-0.03}$ 275.6/257 20.3

PG 1352+183 2.05 1.95 $\pm$ 0.15 126.2/107 9.9 ^(a)<2.3 $\rm 2.69^{+0.10}_{-0.08}$ 311.9/299 29.2

PG 1402+261 1.47 2.31 $\pm$ 0.16 75.5/73 39.8 <1.5 $\rm 2.83^{+0.10}_{-0.03}$ 319.4/288 9.8

Mrk 1383 2.85 1.95 $\pm$ 0.13 92.9/110 87.9 <0.8 $\rm 2.62^{+0.06}_{-0.02}$ 321.2/313 36.2

PG 1427+480 1.86 1.90 $\pm$ 0.12 104.3/123 90.0 <1.4 $\rm 2.52^{+0.08}_{-0.03}$ 344.1/311 9.5

Mrk 478 1.04 2.45 $\pm$ 0.13 90.9/115 95.2 0.9 $\pm$ 0.8 $\rm 3.12^{+0.07}_{-0.06}$ 322.7/319 43.2

PG 1512+370 1.35 1.72 $\pm$ 0.13 125.0/124 45.8 <0.8 2.31 $\pm$ 0.04 301.4/305 54.7

Mrk 876 2.85 1.92 $\pm$ 0.20 47.2/61 90.2 ^(a)<2.3 $\rm 2.45^{+0.15}_{-0.04}$ 254.2/230 13.1

PG 1626+554 2.02 2.03 $\pm$ 0.21 61.2/82 95.8 <0.7 $\rm 2.00^{+0.19}_{-0.13}$ 96.9/122 95.4

**Table 4:** Spectral fits with an absorbed power law continuum in two energy bands (2-5 keV and 0.3-2 keV). Galactic absorption ( $N_{\rm H}^{\rm Gal}$ ) and intrinsic absorption ( $N^{\rm in}_{\rm H}$ ) of the QSO in its rest frame are expressed in 10²⁰ cm^-1. (^a) absorption edge(s) added to the continuum model (see parameter values in Table 6).
Source	$N_{\rm H}^{\rm Gal}$	$\Gamma_{2-5}$	$\chi^{2}$ /d.o.f.	P( $\chi^{2}$ )	$N^{\rm in}_{\rm H}$	$\Gamma_{0.3-2}$	$\chi^{2}$ /d.o.f.	P( $\chi^{2}$ )
I Zw1	4.94	2.30 $\pm$ 0.05	167.4/132	2.0	^(a)7.8 $\pm$ 1.0	2.63 $\pm$ 0.06	352.8/324	13.0
PG 0804+761	3.01	2.19 $\pm$ 0.09	161.5/196	96.6	^(a)2.3 $\pm$ 1.1	2.51 $\pm$ 0.08	248.6/220	9.0
PG 0947+396	1.55	1.81 $\pm$ 0.12	128.3/122	33.1	^(a)2.1 $\pm$ 1.4	2.52 $\pm$ 0.09	285.1/312	86.0
PG 0953+414	0.82	2.04 $\pm$ 0.11	55.7/75	95.2	<0.4	2.59 $\pm$ 0.03	337.0/278	0.9
PG 1048+342	1.94	1.83 $\pm$ 0.12	85.8/81	33.7	<0.8	$\rm 2.40^{+0.06}_{-0.02}$	239.3/267	8.5
PG 1114+445	1.62	1.38 $\pm$ 0.08	123.3/131	67.2	^(a)<2.0	$\rm 1.56^{+0.12}_{-0.03}$	267.9/213	0.6
PG 1115+407	1.91	2.27 $\pm$ 0.15	58.9/81	96.9	^(a) $\rm 2.1^{+1.7}_{-1.3}$	2.92 $\pm$ 0.09	268.0/300	90.8
PG 1116+215	1.29	2.26 $\pm$ 0.16	98.6/80	7.8	<0.5	2.71 $\pm$ 0.04	263.6/294	89.8
PG 1202+281	1.70	1.65 $\pm$ 0.11	68.9/78	76.0	^(a)<0.3	2.28 $\pm$ 0.03	309.9/264	2.7
PG 1244+026	1.78	2.52 $\pm$ 0.18	96.5/79	8.8	11.5 $\pm$ 0.1	3.72 $\pm$ 0.09	407.6/296	0
PG 1307+085	2.10	1.40 $\pm$ 0.16	74.5/81	68.3	^(a)<0.3	2.22 $\pm$ 0.05	268.8/219	1.2
PG 1309+355	1.02	1.76 $\pm$ 0.18	51.8/62	81.8	^(a)<0.5	2.26 $\pm$ 0.05	197.8/212	75.0
PG 1322+659	2.00	2.23 $\pm$ 0.20	52.8/57	63.2	<0.7	$\rm 2.99^{+0.05}_{-0.03}$	275.6/257	20.3
PG 1352+183	2.05	1.95 $\pm$ 0.15	126.2/107	9.9	^(a)<2.3	$\rm 2.69^{+0.10}_{-0.08}$	311.9/299	29.2
PG 1402+261	1.47	2.31 $\pm$ 0.16	75.5/73	39.8	<1.5	$\rm 2.83^{+0.10}_{-0.03}$	319.4/288	9.8
Mrk 1383	2.85	1.95 $\pm$ 0.13	92.9/110	87.9	<0.8	$\rm 2.62^{+0.06}_{-0.02}$	321.2/313	36.2
PG 1427+480	1.86	1.90 $\pm$ 0.12	104.3/123	90.0	<1.4	$\rm 2.52^{+0.08}_{-0.03}$	344.1/311	9.5
Mrk 478	1.04	2.45 $\pm$ 0.13	90.9/115	95.2	0.9 $\pm$ 0.8	$\rm 3.12^{+0.07}_{-0.06}$	322.7/319	43.2
PG 1512+370	1.35	1.72 $\pm$ 0.13	125.0/124	45.8	<0.8	2.31 $\pm$ 0.04	301.4/305	54.7
Mrk 876	2.85	1.92 $\pm$ 0.20	47.2/61	90.2	^(a)<2.3	$\rm 2.45^{+0.15}_{-0.04}$	254.2/230	13.1
PG 1626+554	2.02	2.03 $\pm$ 0.21	61.2/82	95.8	<0.7	$\rm 2.00^{+0.19}_{-0.13}$	96.9/122	95.4

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