Shipped: April 9, 2018
W181 Preliminary results
Sample Number Organism Total Colony Count (Group Means)
Membrane Filtration Method cfu/100mL
Total coliforms Thermotolerant coliforms E.coli
W181-1 Enterobacter species 35±5, MU 13% 0 0
W181-2 No organisms present 0 0 0
W181-3 E. coli 64±13, MU 20% 56±11, MU 17% 64±13, MU 20%
W181-4 Enterobacter species 18±5, MU 25% 0 0
MU: measure of uncertainty
H181 Preliminary results
| Samples | Organism | Total Colony Count (Group Means) |
|---|---|---|
| H181-1 | No organisms present | 0 |
| H181-2 | E. coli | 167±19, MU 11% |
| H181-3 | E. coli | 66±6, MU 8% |
| H181-4 | Enterobacter species | 110±11, MU 10% |
MU (%): Measurement Uncertainty in percentage outliers excluded in group means
ISO17043