This document contains definitions for various chemical hazard symbols, explaining that they indicate chemicals that are self-reactive and can explode, are irritants to skin and lungs, will chemically damage skin, are easily flammable, can harm aquatic environments if misused, are poisonous and can kill, may make you ill in some environments, require protective eyewear, and can cause electric shock if mishandled.

3.  This symbol means that a
substance is self-reactive and
can explode if not handled
correctly.

5.  The word “irritant” means
that the chemical may give
you a rash if you get it on you
or make you choke if you
breathe it in.

7.  This chemical will attack your
skin if u get on you.(Eats)

9. • This chemical will catch fire
easily.

11.  If used wrongly, it could
cause harm to the aquatic
environment.

13.  Poisonous can kill.

15.  There is some type of living
thing in an area which may
make you ill.

17.  Reminds you to wear safety
glasses or goggles.

19.  Wash your hands after you
have done an experiment.

21.  Causes electric shock if
handled incorrectly.