Table 2: The strongest polarized OH features in PPN candidates.
IRAS name Line $V_{\rm c}$ $m_{\rm C}$ ( $\sigma$ ) V_l $m_{\rm L}$ ( $\sigma$ ) $\chi$ ( $\sigma$ )

(MHz) (km s^-1) (%) (km s^-1) (%) ( $^\circ$ )

07331+0021 1612 32.3 5.0(1.1) 32.5 12.3(0.4) -31.6(1.6)

07399-1435 1667 19.0 -2.7(0.2) 20.4 10.7(0.4) 54.2(2.4)

08005-2356 1612 -0.3 -37.0(1.5) -0.4 51.3(5.1) 30.5(5.7)

16342-3814 1612 -7.3 -70.8(2.1) -7.5 14.2(1.9) -43.8(10.7)

1667 9.8 13.8(1.6) -4.2 26.5(4.0) -61.8(13.0)

17150-3754 1612 -125.3 -84.2(6.3)

17150-3224 1612 25.0 -5.2(0.8) 24.9 9.0(1.0) 79.8(2.4)

1667 26.0 8.6(1.4) 25.9 4.2(0.4) -68.2(5.6)

17253-2831 1612 -71.6 -2.9(0.3)

17347-3139 1612 -23.1 11.9(2.4)

17375-2759 1612 22.2 -7.1(2.6) 23.8 16.1(2.0) -17.5(8.3)

17375-3000 1612 -35.6 -9.5(1.2)

17385-3332 1612 -245.6 -7.0(2.3) -224.3 4.1(1.1) 19.6(12.1)

17393-2727 1612 -120.5 12.9(0.8) -123.5 4.2(0.2) -60.8(3.3)

1667 -124.5 -13.5(3.2) -124.5 24.3(4.3) 6.6(13.8)

17393-3004 1612 16.1 -29.6(2.6) -27.4 11.4(0.5) -23.3(5.5)

1667 -22.9 -38.7(20.5)

17404-2713 1612 30.7 -6.6(0.4) 31.7 5.9(0.9) 57.0(4.2)

1667 54.8 -24.9(5.5) 55.0 19.6(6.2) -1.3(4.8)

17443-2949 1612 -15.4 -12.8(1.0)

17579-3121 1612 -0.2 -9.3(1.1) 22.3 3.0(0.1) -34.5(5.5)

18016-2743 1612 61.4 12.0(2.8) 61.4 15.9(2.7) 0.2(10.6)

18025-3906 1612 -129.1 23.1(3.0)

18052-2016 1612 79.5 5.7(0.4)

18071-1727 1612 17.6 17.0(0.7)

18091-1815 1612 10.6 -5.4(7.0)

1667 8.3 32.4(4.7) 8.3 53.8(3.4) -49.9(16.0)

18105-1935 1612 8.5 -7.0(0.4)

18135-1456 1612 13.5 3.8(0.2) 13.1 5.1(0.2) -21.2(3.8)

1667 13.9 -7.6(0.6)

18266-1239 1612 57.5 -2.6(0.5) 57.8 5.6(0.5) 71.9(4.3)

18276-1431 1612 73.3 -16.1(3.6) 48.8 3.5(0.1) -69.8(6.0)

1667 74.3 -15.4(1.3) 72.6 72.0(9.0) 80.4(7.0)

18450-0148 1612 40.5 11.3(1.8) 40.3 2.4(0.2) 63.3(5.2)

1667 40.6 21.1(1.2) 26.4 19.0(2.4) 77.4(6.2)

18596+0315 1612 99.4 -11.0(2.4) 76.9 4.7(0.5) -3.1(4.4)

19067+0811 1612 75.6 2.1(0.6) 76.5 69.9(18.9) 87.9(4.3)

19114+0002 1612 123.8 -6.5(0.2) 123.7 7.5(0.1) -88.4(0.5)

1612 124.9 -8.6(0.1) 124.9 1.8(0.1) -86.9(2.6)

19219+0947 1612 -61.9 6.6(0.8) -62.1 4.0(0.4) 3.9(10.0)

19255+2123 1612 21.2 -83.4(12.3) 21.3 39.9(10.1) -57.2(22.7)

22036+5306 1612 -72.5 6.1(16.3) -63.5 23.2(1.1) -74.1(1.1)

**Table 2:** The strongest polarized OH features in PPN candidates.
IRAS name	Line	$V_{\rm c}$	$m_{\rm C}$ ( $\sigma$ )	V_l	$m_{\rm L}$ ( $\sigma$ )	$\chi$ ( $\sigma$ )
	(MHz)	(km s^-1)	(%)	(km s^-1)	(%)	( $^\circ$ )
07331+0021	1612	32.3	5.0(1.1)	32.5	12.3(0.4)	-31.6(1.6)
07399-1435	1667	19.0	-2.7(0.2)	20.4	10.7(0.4)	54.2(2.4)
08005-2356	1612	-0.3	-37.0(1.5)	-0.4	51.3(5.1)	30.5(5.7)
16342-3814	1612	-7.3	-70.8(2.1)	-7.5	14.2(1.9)	-43.8(10.7)
	1667	9.8	13.8(1.6)	-4.2	26.5(4.0)	-61.8(13.0)
17150-3754	1612	-125.3	-84.2(6.3)
17150-3224	1612	25.0	-5.2(0.8)	24.9	9.0(1.0)	79.8(2.4)
	1667	26.0	8.6(1.4)	25.9	4.2(0.4)	-68.2(5.6)
17253-2831	1612	-71.6	-2.9(0.3)
17347-3139	1612	-23.1	11.9(2.4)
17375-2759	1612	22.2	-7.1(2.6)	23.8	16.1(2.0)	-17.5(8.3)
17375-3000	1612	-35.6	-9.5(1.2)
17385-3332	1612	-245.6	-7.0(2.3)	-224.3	4.1(1.1)	19.6(12.1)
17393-2727	1612	-120.5	12.9(0.8)	-123.5	4.2(0.2)	-60.8(3.3)
	1667	-124.5	-13.5(3.2)	-124.5	24.3(4.3)	6.6(13.8)
17393-3004	1612	16.1	-29.6(2.6)	-27.4	11.4(0.5)	-23.3(5.5)
	1667	-22.9	-38.7(20.5)
17404-2713	1612	30.7	-6.6(0.4)	31.7	5.9(0.9)	57.0(4.2)
	1667	54.8	-24.9(5.5)	55.0	19.6(6.2)	-1.3(4.8)
17443-2949	1612	-15.4	-12.8(1.0)
17579-3121	1612	-0.2	-9.3(1.1)	22.3	3.0(0.1)	-34.5(5.5)
18016-2743	1612	61.4	12.0(2.8)	61.4	15.9(2.7)	0.2(10.6)
18025-3906	1612	-129.1	23.1(3.0)
18052-2016	1612	79.5	5.7(0.4)
18071-1727	1612	17.6	17.0(0.7)
18091-1815	1612	10.6	-5.4(7.0)
	1667	8.3	32.4(4.7)	8.3	53.8(3.4)	-49.9(16.0)
18105-1935	1612	8.5	-7.0(0.4)
18135-1456	1612	13.5	3.8(0.2)	13.1	5.1(0.2)	-21.2(3.8)
	1667	13.9	-7.6(0.6)
18266-1239	1612	57.5	-2.6(0.5)	57.8	5.6(0.5)	71.9(4.3)
18276-1431	1612	73.3	-16.1(3.6)	48.8	3.5(0.1)	-69.8(6.0)
	1667	74.3	-15.4(1.3)	72.6	72.0(9.0)	80.4(7.0)
18450-0148	1612	40.5	11.3(1.8)	40.3	2.4(0.2)	63.3(5.2)
	1667	40.6	21.1(1.2)	26.4	19.0(2.4)	77.4(6.2)
18596+0315	1612	99.4	-11.0(2.4)	76.9	4.7(0.5)	-3.1(4.4)
19067+0811	1612	75.6	2.1(0.6)	76.5	69.9(18.9)	87.9(4.3)
19114+0002	1612	123.8	-6.5(0.2)	123.7	7.5(0.1)	-88.4(0.5)
	1612	124.9	-8.6(0.1)	124.9	1.8(0.1)	-86.9(2.6)
19219+0947	1612	-61.9	6.6(0.8)	-62.1	4.0(0.4)	3.9(10.0)
19255+2123	1612	21.2	-83.4(12.3)	21.3	39.9(10.1)	-57.2(22.7)
22036+5306	1612	-72.5	6.1(16.3)	-63.5	23.2(1.1)	-74.1(1.1)

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