HAZARD SYMBOLS | EXPLANATION |
| E Explosive Chemical that explodes |
| O Oxidizing Chemicals that react exothermically with other chemicals. |
| F+ Extremely Flammable Chemical that has an extremely low flash point and boiling point, and gases that catch fire in contact with air. |
| F Highly Flammable Chemicals that may catch fire in contact with air, only need brief contact with an ignition source, have a very low flash point or evolve highly flammable gases in contact |
| T+ Very toxic Chemicals that at very low levels cause damage to health. |
| T Toxic Chemicals that at low levels cause damage to health. |
| Carc Cat 1 Category 1 carcinogens Chemicals that may cause cancer or increase incidence. |
| Carc Cat 2 Category 2 carcinogens Carcinogens |
| Carc Cat 3 Category 3 carcinogens Carcinogens |
| Muta Cat 1 Category 1 mutagens Chemicals that induce heritable genetic defects or increase their incidence. |
| Muta Cat 2 Category 2 mutagens Chemicals that induce heritable genetic defects or increase their incidence. |
| Muta Cat 3 Category 3 mutagens Chemicals that induce heritable genetic defects or increase their incidence. |
| Repr Cat 1 Category 1 Reproductive toxins Chemicals that produce or increase the incidence of non-heritable effects in progeny and/or impairment in reproductive functions or capacity. |
| Repr Cat 2 Category 2 Reproductive toxins Chemicals that produce or increase the incidence of non-heritable effects in progeny and/or impairment in reproductive functions or capacity. |
| Repr Cat 3 Category 3 Reproductive toxins Chemicals that produce or increase the incidence of non-heritable effects in progeny and/or impairment in reproductive functions or capacity. |
| Xn Harmful Chemicals that may cause damage to health. |
| C Corrosive Chemicals that may destroy living tissue on contact. |
| Xi Irritant Chemicals that may cause inflammation to the skin or other mucous membranes. |
| N Dangerous for that environment Chemicals that may present an immediate or delayed danger to one or more components of the environment. Environmental toxicity |