Credentials

Bacteriological Report from Haffkine Institute, Mumbai

Report on the effect of stainless steel on the growth of bacterial species present in the Stainless Steel Water Tank.

Sr.
No.
Organism Viable count of organism inoculated water stored in the
No. tank after different period.

  On 0 day
(Initial viable count)
After 3 days After 7 days
1. E. coil (ATCC -10148) 8.2 X 103 7.1 X 103 5.0 X 103
2. S. typhi (NCTC - 786) 7.5 X 103 6.2 X 103 4.0 X 104
3.
Ps. Aeruginosa
(Fisner's immunotype IV)
5.0 X 102 2.0 X 102 7.0 X 101
The result therefore indicated that the above mentioned stainless steel tank does neither promote the growth of the organisms nor does it exhibits any bactericidal activity.