We've learned that this stuff is extremely pure, hard to identify for lack of Environmental impurities ,can be potent for 50 yrs, that Skripals may have washed their hands reducing it's impact ,that it didn't degrade enviromentally or in precipitation, that chemicals or incineration may destroy it, that washing /dry clearing and wet wipes are the go to solutions for Joe public.
That is Military grade a term introduced into the debate here from other weaponry.
Water is not the neutraliser, but washing the hands may just save a life .
The door knob was laced with the stuff 10x more potent than VX they should be dead?