The GHS hazard statement for acute toxicity, dermal, category 4. Here is what it means, the label elements that travel with it, and the substances that carry it.
| Official statement | Harmful in contact with skin. |
| Hazard class | Acute toxicity, dermal |
| Category | Category 4 |
| Signal word | Warning |
| Pictogram |
Serious harm from skin contact over a single short exposure. Categories are set from acute toxicity estimates (ATE) per GHS Chapter 3.1.
When the engine writes SDS Section 2 or a container label for a product carrying H312, these are the P-codes it assigns, in the official Annex 3 groups:
| Prevention | P280 | Wear protective gloves/protective clothing/eye protection/face protection. |
| Response | P302 | IF ON SKIN: |
| P312 | Call a POISON CENTER or doctor if you feel unwell. | |
| P321 | Specific treatment (see supplemental first-aid instructions on this label). | |
| P352 | Wash with plenty of water/soap. | |
| P363 | Wash contaminated clothing before reuse. | |
| Disposal | P501 | Dispose of contents/container in accordance with local/regional/national/international regulations. |
3 of the 4,225 substances in our database carry H312 when classified in pure form — recognizable examples:
When SDS HQ authors an SDS or a container label, it assigns the hazard statements, signal word, pictograms, and precautionary statements from these same tables — automatically, with the calculation shown.