AOAC 2018 Methods

Table 2018.02. Interlaboratory Study Results of MC-Media Pad YM vs. the FDA BAM Chapter 18

MC-Media Pad YM

FDA BAM Chapter 18

Difference of Means c 95% LCL, UCL

Difference of Means b

Mean Log 10 CFU/g

Mean Log 10 CFU/g

s r

s r

Matrix

Lot

N a

s R

Lot

N

s R

a

Uninoculat

Uninoculat

Orange

11 0.000

0.00 0.00

11

0.00

0.00

0.00

0.00

0.00, 0.00

ed

ed

Juice

Low

11 1.704

0.13 0.41

Low

11 1.893 0.11

0.33

-0.19

-0.04, -0.34

Concentrate

48 Hour

Medium

11 2.486

0.05 0.20

Medium

11 2.615 0.05

0.26

-0.10

-0.01, -0.20

Incubation

High

11 3.326

0.13 0.20

High

11 3.367 0.09

0.17

-0.04

-0.15, 0.07

Uninoculat

Uninoculat

Orange

11 0.000

0.00 0.00

11 0.000 0.00

0.00

0.00

0.00, 0.00

ed

ed

Juice

Low

11 1.996

0.10 0.22

Low

11 1.893 0.11

0.33

0.10

-0.14, 0.22

Concentrate

72 Hour

Medium

11 2.555

0.09 0.25

Medium

11 2.615 0.05

0.26

-0.06

-0.20, 0.08

Incubation

High

11 3.505

0.10 0.13

High

11 3.367 0.09

0.17

0.14

0.05, 0.23

a Number of laboratories that reported complete results.

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