Sr.no
Concentration of culture in stock culture
Dilution tube to be taken for analysis
1
1 × 10
7
to 10 × 10
7
cfu/ml
Stock
2
1 × 10
8
to 10 × 10
8
cfu/ml
10
-1
3
1 × 10
9
to 10 × 10
9
cfu/ml
10
-2
4
1 × 10
10
to 10 × 10
10
cfu/ml
10
-3
Table 5:
Selection of dilution for test.
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