Have you ever used an old coffee can at home to clean paint brushes? You probably didn’t label that can to show it contained solvent (but you didn’t leave it full of solvent and put it on the shelf, right?)
Construction site workers, unless they’ve been working for fly by night outfits, have extensive safety training. They typically know, for example, to label all containers (including open “temporary use” cans).
When a company opens a new pla