Look, you come on here stating that you know everything about MSDS label this and osha standards that. The FACTS are this:
when you have FOR EXAMPLE, methyl ethyl ketone, you must identify it as such, so that you can pull an MSDS sheet.
BUT IM TELLING YOU RIGHT NOW, it doesnt matter if you put MEK in a windex bottle, a pb blaster bottle, an oil jug, or a milk carton. WHAT MATTERS is what the MSDS label says. IT DOES NOT MATTER WHAT BRAND OF CONTAINER OR WHO manufactured it, just WHAT is in it. The containers all contain that information. There is no problem. There is no worry. Stop making something out of nothing, please.