GHS precautionary statement
P251: Do not pierce or burn, even after use
- P251
- Prevention
P251 says: “Do not pierce or burn, even after use”. 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.
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 P251
The GHS data recommends P251 for these hazard statements.
Chemicals using P251
No chemicals in our database list P251 in their primary classification yet.
P251 frequently asked questions
What does P251 mean?
P251 says: "Do not pierce or burn, even after use". It is a prevention precautionary statement in the Prevention (P200 series).
Which hazards call for P251?
In the GHS data, P251 is recommended for hazard statements H222, H223, H229.
What type of statement is P251?
P251 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)