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© 2012 AOAC INTERNATIONAL
M
ICROBIOLOGY
G
UIDELINES
AOAC O
FFICIAL
M
ETHODS
OF
A
NALYSIS
(2012)
Appendix J, p. 20
Table G1. (
continued
)
Candidate presumptive (CP)
Candidate confirmed (CC)
Candidate result (C)
Reference method (R)
C vs R CP vs CC
Statistic
Concn,
MPN/25 g Lab
N
x
POD(CP)
N
x
POD(CC)
N
x
POD(C)
N
x
POD
(R)
dLPOD
(C,R)
dLPOD
(CP,CC)
08
12
7
0.58
12
7
0.58
12
7
0.58
12
11 0.92 –0.33
0.00
09
12
8
0.67
12
8
0.67
12
8
0.67
12
9 0.75 –0.08
0.00
10
12
8
0.67
12
8
0.67
12
8
0.67
12
9 0.75 –0.08
0.00
Estimate 0.92
All
120
75
0.63
120
74
0.62
120
74
0.62
120
80 0.67 –0.05
0.01
LCL
0.73
0.53
0.53
0.53
0.58 –0.36
–0.37
UCL
0.72
0.71
0.71
0.76 –0.04
0.12
s
r
0.50
0.50
0.50
0.47
LCL
0.44
0.44
0.44
0.42
UCL
0.52
0.52
0.52
0.52
s
L
0.00
0.00
0.00
0.04
LCL
0.00
0.00
0.00
000
UCL
0.13
0.11
0.11
0.22
s
R
0.50
0.50
0.50
0.47
LCL
0.45
0.45
0.45
0.42
UCL
0.52
0.52
0.52
0.52
P
T
0.9634
0.9867
0.9867
0.3711
etc.