Table A3. Third VOC Study--Effect of cold and hot detergent washes and
rinses.
Analyte conc. (mg/L) in 10-min controls
Analyte conc. (mg/L) in 24-hr controls
MNT
TCE
PDCB
PCE
MNT
TCE
PDCB
PCE
A
2.18
2.37
1.49
2.65
2.21
2.57
1.65
2.85
B
2.18
2.40
1.52
2.64
2.20
2.45
1.73
2.92
C
2.19
2.23
1.42
2.47
2.20
2.81
1.73
3.11
2.18
2.33
1.48
2.59
2.20
2.61
1.70
2.96
X
% RSD
0.26
3.9
3.5
3.9
0.26
7.0
2.7
4.5
Desorbed concentration (mg/L) after the following treatments
Cold wash
Hot wash
10-min sorb /10-min desorb
10-min sorb /10-min desorb
Material
MNT
TCE
PDCB
PCE
MNT
TCE
PDCB
PCE
PVC-A
LD
LD
LD
LD
LD
LD
LD
LD
PVC-B
LD
LD
LD
LD
LD
LD
LD
LD
PVC-C
LD
LD
LD
LD
LD
LD
LD
LD
LD
LD
LD
LD
LD
LD
LD
LD
X
PTFE-A
LD
0.005
0.011
0.010
LD
LD
LD
LD
PTFE-B
LD
LD
LD
0.009
LD
LD
LD
LD
PTFE-C
LD
0.005
0.007
0.010
LD
LD
LD
LD
LD
<0.005
<0.008
0.010
LD
LD
LD
LD
X
% RSD
6.0
% of initial
0.4
SS-A
SS-B
Not done
Not done
SS-C
24-hr sorb /10 min desorb
24-hr sorb /10 min desorb
Material
MNT
TCE
PDCB
PCE
MNT
TCE
PDCB
PCE
PVC-A
LD
LD
LD
LD
LD
LD
LD
LD
PVC-B
LD
LD
LD
LD
LD
LD
LD
LD
PVC-C
LD
LD
LD
LD
LD
LD
LD
LD
LD
LD
LD
LD
LD
LD
LD
LD
X
PTFE-A
LD
0.008
0.008
0.020
LD
LD
LD
LD
PTFE-B
LD
0.009
0.015
0.021
LD
LD
LD
LD
PTFE-C
LD
LD
0.007
0.026
LD
LD
LD
LD
LD
LD
0.010
0.023
LD
LD
LD
LD
X
% RSD
44
14
% of initial
0.7
0.9
SS-A
LD
LD
LD
LD
SS-B
LD
LD
LD
LD
Not done
SS-C
LD
LD
LD
LD
LD
LD
LD
LD
X
24-hr sorb / 24-hr desorb
24-hr sorb / 24-hr desorb
Material
MNT
TCE
PDCB
PCE
MNT
TCE
PDCB
PCE
PVC
0.004
0.025
0.028
0.020
LD
LD
LD
LD
PVC
0.005
0.021
0.025
0.017
LD
LD
LD
LD
PVC
0.004
0.023
0.024
0.021
LD
LD
LD
LD
0.004
0.023
0.026
0.019
LD
LD
LD
LD
X
% RSD
73
8.7
8.1
11
% of initial
0.2
1.0
1.7
0.7
PTFE
0.013
0.160
0.158
0.328
LD
0.037
0.030
0.047
PTFE
0.013
0.161
0.164
0.333
LD
0.046
0.034
0.071
PTFE
0.013
0.157
0.173
0.342
0.003
0.056
0.038
0.084
0.013
0.159
0.165
0.334
LD
0.046
0.034
0.067
X
% RSD
0
1.3
4.6
2.1
21
12
28
% of initial
0.6
6.8
11
13
1.8
2.0
2.3
SS
LD
LD
LD
LD
SS
LD
LD
LD
LD
Not done
SS
LD
LD
LD
LD
LD
LD
LD
LD
X
MDL
0.003
0.004
0.005
0.009
LD = less than detection limit.
20