Briefly, everyone who handles everything has to know what they're doing -- we verify that people can handle guns, automobiles, construction equipment in a variety of different ways, as an example. People have, historically, gone litigious very quickly when there's an accident involving laboratory or industrial use of chemicals. So, various national and international organizations have come together to make up a specific format so everyone has the same information, all in one handy spot -- the Safety Data Sheet.
Do you have one? For what chemical? Can you read what it says? Do you find the information useful or handy?
P.S. they're drafted to a specific format controlled by licensed authorities, but every manufacturer provides them with every order of any chemicals. And you can always find them on the manufacturer's website, or even by simply Googling.