AOAC ERP MICRO AUGUST 2018

986 B ird et al .: J ournal of aoaC i nternational V ol . 99, n o . 4, 2016

Table 2016.01C. ( continued )

Candidate presumptive

Candidate confirmed

Candidate result

Reference method

Candidate versus reference

Matrix and inoculation level Laboratory

Statistic

POD CC

POD C

POD R

dLPOD C

dLPOD CP

N X POD CP

N X

N X

N X

MPN, CFU/test portion

Estimate

0.67 0.53 0.83

All 156 83 0.53 156 83 0.53 156 82 0.53 156 77 0.49 0.03 0.00

LCL UCL

0.44 0.62 0.49 0.44 0.52 0.09 0.00 0.24 0.50 0.45 0.52

0.43 0.63 0.49 0.44 0.52 0.12 0.00 0.27 0.50 0.45 0.52

0.43 0.62 0.49 0.44 0.52 0.10 0.00 0.25 0.50 0.45 0.52

0.41 −0.10 −0.14 0.58 0.16 0.14

s r

0.49 0.45 0.52 0.06 0.00 0.22 0.50 0.45 0.52

LCL UCL

s L

LCL UCL

s R

UCL LCL

0.1725

0.0715

0.1272

0.2813

P T

Raw ground beef (73% lean), high inoculum level

1 12 12 1.00 12 12 1.00 12 12 1.00 12 12 1.00 0.00 0.00 2 12 12 1.00 12 12 1.00 12 12 1.00 12 12 1.00 0.00 0.00 3 12 12 1.00 12 12 1.00 12 12 1.00 12 12 1.00 0.00 0.00 4 12 12 1.00 12 12 1.00 12 12 1.00 12 12 1.00 0.00 0.00 5 b NA NA NA NA NA NA NA NA NA NA NA NA NA NA 6 12 12 1.00 12 12 1.00 12 12 1.00 12 12 1.00 0.00 0.00 7 c NA NA NA NA NA NA NA NA NA NA NA NA NA NA 8 12 12 1.00 12 12 1.00 12 12 1.00 12 12 1.00 0.00 0.00 9 12 12 1.00 12 12 1.00 12 12 1.00 12 12 1.00 0.00 0.00 10 c NA NA NA NA NA NA NA NA NA NA NA NA NA NA 11 12 12 1.00 12 12 1.00 12 12 1.00 12 12 1.00 0.00 0.00 12 12 11 0.92 12 11 0.92 12 11 0.92 12 12 1.00 −0.08 0.00 13 12 12 1.00 12 12 1.00 12 12 1.00 12 12 1.00 0.00 0.00 14 12 12 1.00 12 12 1.00 12 12 1.00 12 12 1.00 0.00 0.00 15 12 12 1.00 12 12 1.00 12 12 1.00 12 12 1.00 0.00 0.00 16 12 12 1.00 12 12 1.00 12 12 1.00 12 12 1.00 0.00 0.00 ERP Use Only All 156 155 0.99 156 155 0.99 156 155 0.99 156 156 1.00 −0.01 0.00 0.98 −0.04 −0.03 1.00 0.02 0.03

MPN, CFU/test portion

Estimate

4.76 3.41 6.65

LCL UCL

0.96 1.00 0.08 0.07 0.15 0.00 0.00 0.03 0.08 0.07 0.09

0.96 1.00 0.08 0.07 0.15 0.00 0.00 0.03 0.08 0.07 0.09

0.96 1.00 0.08 0.07 0.15 0.00 0.00 0.03 0.08 0.07 0.09

s r

0.00 0.00 0.15 0.00 0.00 0.15 0.00 0.00 0.21 1.00

LCL UCL

s L

LCL UCL

s R

UCL LCL

0.4395

0.4395

0.4395

P T

a NA = No data submitted by the collaborating laboratory. b Laboratory 5 was unable to conduct the analysis did not submit data for this matrix. c Laboratories 7 and 10 did not participate in the evaluation of this matrix.

d LCL = Lower confidence limit. e UCL = Upper confidence limit.