APPENDIX A: RESULTS OF THE SHORT-TERM MISCIBLE SOLVENT STUDY
Table A1. Weight gains and relative hardness (Barcol) values of PVC exposed to miscible solvent solutions for
the short-term study.
Weight gain (%)
Barcol values
Weight gain (%)
Barcol values
Solution (%)
3 days
7 days
3 days
7 days
Solution (%)
3 days
7 days
3 days
7 days
40
0.00
0.00
79
77
Control
40
0.09
0.00
80
79
40
0.20
0.11
79
78
0.0
0.09
0.00
80
79
0.0
0.00
0.12
79
78
X
0.10
0.04
79.3
78.0
0.0
0.11
0.09
78
80
X
60
0.00
0.00
79
79
0.07
0.07
79.0
79.0
60
0.00
0.12
78
78
60
0.23
0.00
80
80
Acetone
X
0.08
0.04
79.0
79.0
20
0.00
0.22
80
80
20
0.11
0.21
79
78
Pyridine
20
0.11
0.23
80
77
X
20
0.11
0.18
80
78
0.07
0.22
79.7
78.3
20
0.10
0.12
79
77
20
0.18
0.18
78
79
40
3.86
8.58
64
47
40
4.61
6.57
66
52
X
0.13
0.16
79.0
78.0
40
4.38
8.11
64
51
X
40
0.17
0.24
80
77
4.29
7.76
64.7
50.0
40
0.21
0.00
77
80
40
0.23
0.09
80
79
60
19.29
19.90
38
37
60
20.04
20.51
37
39
X
0.20
0.11
79.0
78.7
60
21.83
20.02
42
35
X
60
0.21
0.38
79
77
20.39
20.14
39.0
37.0
60
0.20
0.21
79
79
60
0.31
0.31
76
79
n-butylamine
X
0.24
0.30
78.0
78.3
20
0.11
0.10
77
78
20
0.09
0.10
79
80
Tetrahydrofuran
20
0.21
0.00
79
79
X
20
30.69
28.06
38
S*
0.14
0.07
78.3
79.0
20
29.67
31.77
35
S
20
28.69
29.15
34
S
40
0.12
0.00
78
77
40
0.23
0.00
80
80
X
29.68
29.66
35.7
40
0.31
0.09
80
79
X
40
88.07
88.95
S
S
0.22
0.03
79.3
78.7
40
83.19
86.14
S
S
40
86.53
84.89
S
S
60
0.22
0.21
78
79
60
0.21
0.20
77
79
X
85.93
86.66
60
0.20
0.26
79
78
X
60
D
D
D
D
0.21
0.22
78.0
78.7
60
D
D
D
D
60
D
D
D
D
Dimethylformamide
X
20
0.00
0.00
79
78
20
0.11
0.00
80
79
* S Softened PVC couldn't be tested
20
0.12
0.00
79
80
D PVC dissolved
X
0.08
0.00
79.3
79.0
11
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