| Code | Description | Nederlands (Dutch) | Comment | Version |
| cor | Corrosive | | Material is corrosive and may cause severe injury to skin, mucous membranes and eyes. Avoid any unprotected contact. | added v2.6 |
| exp | Explosive | | Material is an explosive mixture. Keep away from fire, sparks, and heat. | added v2.6 |
| fla | Flammable | | Material is highly flammable and in certain mixtures (with air) may lead to explosions. Keep away from fire, sparks and excessive heat. | added v2.6 |
| inj | Injury Hazard | | Material is solid and sharp (e.g. cannulas.) Dispose in hard container. | added v2.6 |
| rad | Radioactive | | Material is a source for ionizing radiation and must be handled with special care to avoid injury of those who handle it and to avoid environmental hazards. | added v2.6 |
| tox | Toxic | | Material is toxic to humans and/or animals. Special care must be taken to avoid incorporation, even of small amounts. | added v2.6 |
| unk | Unknown | Onbekend | Material hazard level is unknown. | added v2.6 |