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.My immediate thought with regard to cleanliness is always moulds.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.