Page 115 - 2013 ISPAM Mid-Year Mtg Book
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ISO/TS 19036:2006/Amd.1:2009(E)
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5
The test result may be reported according to one of the following possibilities:
2,0
±
0,3 [log
10
(cfu/g)];
2,0 [log
10
(cfu/g)] [1,7; 2,3];
100 cfu/g [46; 220];
100 cfu/g [
−
54 %;
+
120 %].
NOTE
Applicable only if two formulae are used (see 8.2.2):
C
lim
=
144. Then, as
Σ
C
=
11
<
C
lim
=
144, simplified Equation (2) for
high counts cannot be used.
EXAMPLE 4 (applicable only if two formulae are used)
A standard deviation of reproducibility,
s
R
, of 0,22 [log
10
(cfu/g)] has been found.
C
lim
=
36. Then, if
Σ
C
>
C
lim
=
36, simplified Equation (2) for high counts,
U
=
2
×
0,22
=
0,44 applies.
A general rule, applicable only for results with
Σ
C
>
36, may be stated according to one of the following possibilities:
log result
±
0,44 [log
10
(cfu/g)];
log result [log
10
(cfu/g)] [log result
−
0,44; log result
+
0,44];
result cfu/g [10
log result
−
0,44
; 10
log result
+
0,44
];
result cfu/g [
−
64 %;
+
175 %].
If
Σ
C
u
36, or if a single universally applicable equation is preferred, use Equation (1).”
Page 16
Add Annex B (overleaf) before the bibliography.
