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Disinfectant Efficacy Testing

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#1 Sana4025



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Posted 19 July 2016 - 09:08 AM

Calling all microbiologists;


Can you please tell me how are organisms decided for disinfectant efficacy testing? what is the criteria?

Also, can you share any data with me that shows which organisms are difficult to kill and which easier?


Many thanks,

#2 hobglobin


    Growing old is mandatory, growing up is optional...

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Posted 01 August 2016 - 10:43 AM

Not a microbiologist but my ideas are:

- frequency (exotic organisms might be difficult to get/culture)

- ability to form spores or similar (reason for heat stability and longevity)

- pathogenicity (less is better)

- ease of detection (a long time of cultivation until you see a colony or not is not good)


A good example is this one: https://en.wikipedia...arothermophilus

One must presume that long and short arguments contribute to the same end. - Epicurus
...except casandra's that did belong to the funniest, most interesting and imaginative (or over-imaginative?) ones, I suppose.

#3 Phil Geis

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Posted 30 August 2016 - 08:44 AM

To use the disinfectant claim in many countries, there are specific bacterial isolates identified against which one must show efficacy n- e.g. https://www.epa.gov/...as-microbiology

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