GHS precautionary statement
P231: Handle and store contents under inert gas/
- P231
- Prevention
P231 says: “Handle and store contents under inert gas/”. It is a prevention statement. P200 series: actions to take before and during use to prevent or minimise harm, such as avoiding ignition sources, using ventilation and wearing protective equipment.
The dots (...) mark a blank that the supplier fills in with specific information, such as the equipment, material or temperature that applies to the product.
About the prevention group
P200 series: actions to take before and during use to prevent or minimise harm, such as avoiding ignition sources, using ventilation and wearing protective equipment. See all precautionary statements for the full list.
Hazards that call for P231
The GHS data recommends P231 for these hazard statements.
| Code | Statement | Hazard class and category | Signal word |
|---|---|---|---|
| H250 | Catches fire spontaneously if exposed to air | Pyrophoric liquids — Category 1 Pyrophoric solids — Category 1 | Danger |
Chemicals using P231
1 chemical in our database. Classification comes from each chemical's primary GHS source, so a supplier's SDS may differ.
P231 frequently asked questions
What does P231 mean?
P231 says: "Handle and store contents under inert gas/". It is a prevention precautionary statement in the Prevention (P200 series).
Which hazards call for P231?
In the GHS data, P231 is recommended for hazard statements H250.
What type of statement is P231?
P231 is in the Prevention (P200 series). P200 series: actions to take before and during use to prevent or minimise harm, such as avoiding ignition sources, using ventilation and wearing protective equipment.
Precautionary statements are general recommendations. Follow the specific instructions on your product's label and safety data sheet.
https://pubchem.ncbi.nlm.nih.gov/ghs/ghscode_10.txt (UN GHS Revision 10, retrieved 2026-10-12)