AOAC ERP MICRO AUGUST 2018

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

Table 2016.01D. ( continued )

Candidate presumptive

Candidate confirmed

Candidate result

Reference method

Candidate versus reference

Matrix and inoculation level MPN, CFU/ test portion

Statistic

POD CC

POD C

POD R

dLPOD C

dLPOD CP

Laboratory

N X POD CP N X

N X

N X

Estimate 0.70

All 132 78 0.59 132 76 0.58 132 76 0.58 132 68 0.52 0.06 0.02

LCL UCL

0.55 0.89

0.50 0.68 0.50 0.45 0.52 0.00 0.00 0.16 0.50 0.45 0.52

0.49 0.66 0.51 0.45 0.52 0.00 0.00 0.13 0.51 0.46 0.52

0.49 0.66 0.51 0.45 0.52 0.00 0.00 0.13 0.51 0.46 0.52

0.43 −0.06 −0.11

0.61 0.18

0.14

0.51 0.45 0.52 0.00 0.00 0.15 0.51 0.46 0.52

s r

LCL UCL

s L

LCL UCL

s R

UCL LCL

0.8294

0.9590

0.9590

0.8762

P T

Creamy peanut butter, high inoculum level

1 2

12 12 1.00 12 12 1.00 12 12 12 1.00 12 12 1.00 12 12 12 1.00 12 12 1.00 12 12 12 1.00 12 12 1.00 12

12 1.00 12 12 1.00 0.00 12 1.00 12 12 1.00 0.00 12 1.00 12 12 1.00 0.00 12 1.00 12 12 1.00 0.00

0.00 0.00 0.00 0.00

3 a

4

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 a 12 12 1.00 12 12 1.00 12 12 1.00 12 12 1.00 0.00 0.00 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 12 12 1.00 12 12 1.00 12 12 1.00 12 12 1.00 0.00 0.00 11 b NA NA 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 0.00 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 d NA NA NA NA NA NA NA NA NA NA NA NA NA NA ERP Use Only All 132 132 1.00 132 132 1.00 132 132 1.00 132 132 1.00 0.00 0.00 0.97 −0.03 −0.03 1.00 0.03 0.03

MPN, CFU/ test portion

Estimate 5.35

LCL UCL

3.46 8.24

0.97 1.00 0.00 0.00 0.16 0.00 0.00 0.16 0.00 0.00 0.23

0.97 1.00 0.00 0.00 0.16 0.00 0.00 0.16 0.00 0.00 0.23

0.97 1.00 0.00 0.00 0.16 0.00 0.00 0.16 0.00 0.00 0.23

0.00 0.00 0.16 0.00 0.00 0.16 0.00 0.00 0.23

s r

LCL UCL

s L

LCL UCL

s R

UCL LCL

1.000

1.000

1.000

1.000

P T

a Results from Laboratories 3 and 7 were not used in statistical analysis due to a reported contamination of control samples and a deviation from the testing protocol, respectively. b Laboratories 5 and 11 were unable to conduct the analysis did not submit data for this matrix.

c NA = No data were submitted by the collaborating laboratory. d Laboratory 16 did not participate in the evaluation of this matrix.

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