P232 · Precautionary statementProtect from moisture.
P232 is the GHS precautionary statement “Protect from moisture”. UN GHS Annex 3 assigns it to Substances and mixtures which, in contact with water, emit flammable gases (chapter 2.12), Category 1, 2, 3. The English wording is the same as UN GHS Rev.11 in EU CLP and Canada. OSHA uses it only inside combined statements. Canada’s official French text is “Protéger de l'humidité” and Mexico’s Spanish text is “Proteger de la humedad”.
Heading text: UN GHS Rev.11 Annex 3. Wording can differ by jurisdiction; see the table below.
Wording by jurisdiction
UN GHS Rev.11
Same as UNProtect from moisture.
UN GHS Rev.11, Annex 3, Table A3.2.2, PDF p. 316
US OSHA HCS
In combined statementsUsed in OSHA App. C only inside combined statements: P231+P232. Precautionary statements may be combined (App. C, C.2.4.6).
EU CLP
Same as UNProtect from moisture.
EU CLP, Annex IV, Part 2
Canada (EN)
Same as UNProtect from moisture.
GHS Rev.7 Annex 3 Table A3.2
Canada (FR)
AdoptedProtéger de l'humidité.
GHS Rev.7 Annex 3 Table A3.2
Mexico (ES)
AdoptedProteger de la humedad
NOM-018-STPS-2015, DOF 9 October 2015, Apéndice D, Tabla D.1, PDF p. 35
Hazard classes and categories
- Substances and mixtures which, in contact with water, emit flammable gases (chapter 2.12) · Category 1, 2, 3
UN GHS Rev.11 Annex 3, sections 1 and 2
Change in UN GHS Rev.11
No change to the wording or the hazard classes in Annex 3 compared with Rev.10.
Sources
Each cell in the table names the official table and page for P232. Full citations, links and revision notes for UN GHS Rev.11, US OSHA, EU CLP, Canada and Mexico: Sources and revision notes.
These are regulatory phrases for labels and safety data sheets. Check them against the official source for your jurisdiction before use.