How microbes survive clean rooms and contaminate spacecraft
I don’t know what Kleenol 30 is, but I would have thought it obvious that ethanol and isopropyl alcohol are insufficient to sterilise.<p>My immediate thought with regard to cleanliness is always moulds.<p>It’s not clean until it’s been soaked in sodium hypochlorite and sodium hydroxide, UV sterilised, gamma irradiated, then parked in a decaying orbit above the sun.