W163 & H163 Preliminary results

Shipped: October 23, 2016

W163 Preliminary results

Sample Number	Organism	Total Colony Count (Group Means)
		Membrane Filtration Method cfu/100mL
		Total coliforms	Thermotolerant coliforms	E.coli
W163-1	E. coli	18±4, MU 22%	17 ± 4, MU 21%	18 ± 4, MU 24%
W163-2	Enterobacter species	48±10, MU 21%	0 ± 0	0 ± 0
W163-3	E. coli	53±5, MU 9%	51±4, MU 8%	53±5, MU 9%
W163-4	Blank	0±0	0±0	0±0

MU: measure of uncertainty

H163 Preliminary results

Samples	Organism	Total Colony Count (Group Means)
H163-1	Enterobacter species MU(%)	95±13 14%
H163-2	E. coli MU(%)	98±14 14%
H163-3	E. coli MU(%)	127±21 16%
H163-4	Blank	0±0

MU (%): Measurement Uncertainty in percentage outliers excluded in group means