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A
A
p
p
p
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n
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d
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x
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D
D
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:
P
P
r
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c
c
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C
C
o
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n
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t
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r
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o
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d
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A
A
t
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m
m
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p
p
h
h
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r
r
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P
P
u
u
r
r
g
g
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&
&
F
F
i
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l
l
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R
R
e
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d
d
u
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c
c
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% Oxygen Level Per Number of Purge and Fill Cycles
54, 3.2%
45, 4.4%
40, 5.2%
35, 6.2%
30, 7.4%
25, 8.8%
20, 10.5%
15, 12.6%
10, 15.1%
5, 18.1%
1, 20.3%
125, 0.6%
105, 0.8%
88, 1.2%
78, 1.5%
70, 1.9%
0
5
10
15
20
25
0
20
40
60
80
100
120
140
# of Purge and Fill Cycles -5 to +5 Inches of water pressure
% Oxygen
Precise CA
Glove Box
Data Points =
Number of cycles,
% Oxygen
