AOAC ERP MICRO AUGUST 2018

90 B ird et al .: J ournal of AOAC I nternational V ol . 100, N o . 1, 2017

Table 2016.07D. ( continued )

CP a

CC b

C c

R d

C vs R

Matrix/ inoculation level

N e

x f

Statistic

POD CP

POD CC

POD C

POD R

dLPOD C vs R

dLPOD CP vs CC

Lab

N x

N x

N x

s L

0.00 0.00 0.18 0.48 0.43 0.52

0.00 0.00 0.18 0.48 0.43 0.52

0.00 0.00 0.18 0.49 0.43 0.52

0.00 0.00 0.14 0.51 0.46 0.52

 LCL

 UCL

s R

 UCL

 LCL

0.6044

0.5632

0.6228

0.9192

P T

High inoculum level

Raw chicken breast fillet

1 12 12 1.00 12 12 1.00 12 12 1.00 12 12 1.00 2 12 12 1.00 12 12 1.00 12 12 1.00 12 12 1.00 3 12 12 1.00 12 12 1.00 12 12 1.00 12 12 1.00 4 12 12 1.00 12 12 1.00 12 12 1.00 12 12 1.00 5 12 12 1.00 12 12 1.00 12 12 1.00 12 12 1.00 6 12 12 1.00 12 12 1.00 12 12 1.00 12 12 1.00 7 12 12 1.00 12 12 1.00 12 12 1.00 12 12 1.00 8 12 12 1.00 12 12 1.00 12 12 1.00 12 12 1.00 9 12 11 0.92 12 12 1.00 12 11 0.92 12 12 1.00 12 12 1.00 12 12 1.00 12 12 1.00 12 12 1.00 11 h NA NA NA NA NA NA NA NA NA NA NA NA 12 12 12 1.00 12 12 1.00 12 12 1.00 12 12 1.00 13 12 12 1.00 12 12 1.00 12 12 1.00 12 12 1.00 10 g

0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00

0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00

–0.08

–0.08

0.00

0.00

MPN/test portion

NA

NA

0.00 0.00

0.00 0.00

Labs

POD CP

POD CC

POD C

POD R

dLPOD C vs R

dLPOD CP vs CC

N x

N x

N x

N x

Estimate 6.24

All 132 131 0.99 132 132 1.00 132 131 0.99 132 132 1.00

–0.01 –0.04

–0.01 –0.04

 LCL

3.58

0.96 1.00 0.09 0.08 0.16 0.00 0.00 0.04 0.09 0.08 0.10

0.97 1.00 0.00 0.00 0.16 0.00 0.00 0.16 0.00 0.00 0.23

0.96 1.00 0.09 0.08 0.16 0.00 0.00 0.04 0.09 0.08 0.10

0.97 1.00 0.00 0.00 0.16 0.00 0.00 0.16 0.00 0.00 0.23

 UCL 10.88

0.02

0.02

s r

 LCL

 UCL

s L

ERP Use Only

 LCL

 UCL

s R

 UCL

 LCL

0.4338

1.0000

0.4338

1.0000

P T

a  CP=Candidate-presumptive. b  CC=Candidate-confirmed. c  C=Candidate result. d  R=Reference method. e N =Number of samples tested.

f x =Number of test samples with a positive result (presumptive or confirmed). g  Results were not used in statistical analysis due to deviation from testing protocol. h  NA=Not available (i.e., the laboratory did not participate or submit data for this matrix).

i  LCL=Lower confidence limit. j  UCL=Upper confidence limit. k  Among-laboratory SD. l P T

value for the homogeneity test of laboratory PODs.