| Code | Display | Definition | status | V2 Concept Comment | V2 Concept Comment As Published | status | V2 Concept Comment | V2 Concept Comment As Published |
| COR | Corrosive | Corrosive | A, A | Material is corrosive and may cause severe injury to skin, mucous membranes and eyes. Avoid any unprotected contact., Material is corrosive and may cause severe injury to skin, mucous membranes and eyes. Avoid any unprotected contact. | Material is corrosive and may cause severe injury to skin, mucous membranes and eyes. Avoid any unprotected contact., Material is corrosive and may cause severe injury to skin, mucous membranes and eyes. Avoid any unprotected contact. | A, A | Material is corrosive and may cause severe injury to skin, mucous membranes and eyes. Avoid any unprotected contact., Material is corrosive and may cause severe injury to skin, mucous membranes and eyes. Avoid any unprotected contact. | Material is corrosive and may cause severe injury to skin, mucous membranes and eyes. Avoid any unprotected contact., Material is corrosive and may cause severe injury to skin, mucous membranes and eyes. Avoid any unprotected contact. |
| FLA | Flammable | Flammable | A, A | Material is highly flammable and in certain mixtures (with air) may lead to explosions. Keep away from fire, sparks and excessive heat., Material is highly flammable and in certain mixtures (with air) may lead to explosions. Keep away from fire, sparks and excessive heat. | Material is highly flammable and in certain mixtures (with air) may lead to explosions. Keep away from fire, sparks and excessive heat., Material is highly flammable and in certain mixtures (with air) may lead to explosions. Keep away from fire, sparks and excessive heat. | A, A | Material is highly flammable and in certain mixtures (with air) may lead to explosions. Keep away from fire, sparks and excessive heat., Material is highly flammable and in certain mixtures (with air) may lead to explosions. Keep away from fire, sparks and excessive heat. | Material is highly flammable and in certain mixtures (with air) may lead to explosions. Keep away from fire, sparks and excessive heat., Material is highly flammable and in certain mixtures (with air) may lead to explosions. Keep away from fire, sparks and excessive heat. |
| EXP | Explosive | Explosive | A, A | Material is an explosive mixture. Keep away from fire, sparks, and heat., Material is an explosive mixture. Keep away from fire, sparks, and heat. | Material is an explosive mixture. Keep away from fire, sparks, and heat., Material is an explosive mixture. Keep away from fire, sparks, and heat. | A, A | Material is an explosive mixture. Keep away from fire, sparks, and heat., Material is an explosive mixture. Keep away from fire, sparks, and heat. | Material is an explosive mixture. Keep away from fire, sparks, and heat., Material is an explosive mixture. Keep away from fire, sparks, and heat. |
| INJ | Injury Hazard | Injury Hazard | A, A | Material is solid and sharp (e.g., cannulas.) Dispose in hard container., Material is solid and sharp (e.g., cannulas.) Dispose in hard container. | Material is solid and sharp (e.g., cannulas.) Dispose in hard container., Material is solid and sharp (e.g., cannulas.) Dispose in hard container. | A, A | Material is solid and sharp (e.g., cannulas.) Dispose in hard container., Material is solid and sharp (e.g., cannulas.) Dispose in hard container. | Material is solid and sharp (e.g., cannulas.) Dispose in hard container., Material is solid and sharp (e.g., cannulas.) Dispose in hard container. |
| TOX | Toxic | Toxic | A, A | Material is toxic to humans and/or animals. Special care must be taken to avoid incorporation, even of small amounts., Material is toxic to humans and/or animals. Special care must be taken to avoid incorporation, even of small amounts. | Material is toxic to humans and/or animals. Special care must be taken to avoid incorporation, even of small amounts., Material is toxic to humans and/or animals. Special care must be taken to avoid incorporation, even of small amounts. | A, A | Material is toxic to humans and/or animals. Special care must be taken to avoid incorporation, even of small amounts., Material is toxic to humans and/or animals. Special care must be taken to avoid incorporation, even of small amounts. | Material is toxic to humans and/or animals. Special care must be taken to avoid incorporation, even of small amounts., Material is toxic to humans and/or animals. Special care must be taken to avoid incorporation, even of small amounts. |
| RAD | Radioactive | Radioactive | A, A | 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., 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. | 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., 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. | A, A | 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., 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. | 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., 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. |
| UNK | Unknown | Unknown | A, A | Material hazard level is unknown., Material hazard level is unknown. | Material hazard level is unknown., Material hazard level is unknown. | A, A | Material hazard level is unknown., Material hazard level is unknown. | Material hazard level is unknown., Material hazard level is unknown. |