I have some queries please clarify it.
We use Filtered Disinfectant for cleaning purpose in Pharmaceutical industry. My query is that Isopropyl Alcohol kills Microorganisms So what is the need to Filtered Isopropyl Alcohol.
Another one is we use 90mm Petriplates for settle plate Exposure Why wr only use 90mm Petriplates.What is the reason behind it.
And Why We use 0.45 Micron filter in water testing rather than 0.22 micron.
Please clarify all my queries as soon as you can