P342 · Precautionary statementIf experiencing respiratory symptoms:
P342 is the GHS precautionary statement “If experiencing respiratory symptoms:”. UN GHS Annex 3 assigns it to Respiratory sensitization (chapter 3.4), Category 1, 1A, 1B. 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 “En cas de symptômes respiratoires:” and Mexico’s Spanish text is “En caso de síntomas respiratorios”.
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 UNIf experiencing respiratory symptoms:
UN GHS Rev.11, Annex 3, Table A3.2.3, PDF p. 325
US OSHA HCS
In combined statementsUsed in OSHA App. C only inside combined statements: P342+P311. Precautionary statements may be combined (App. C, C.2.4.6).
EU CLP
Same as UNIf experiencing respiratory symptoms:
EU CLP, Annex IV, Part 2
Canada (EN)
Same as UNIf experiencing respiratory symptoms:
GHS Rev.7 Annex 3 Table A3.2
Canada (FR)
AdoptedEn cas de symptômes respiratoires:
GHS Rev.7 Annex 3 Table A3.2
Mexico (ES)
AdoptedEn caso de síntomas respiratorios
NOM-018-STPS-2015, DOF 9 October 2015, Apéndice D, Tabla D.1, PDF p. 36
Hazard classes and categories
- Respiratory sensitization (chapter 3.4) · Category 1, 1A, 1B
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 P342. 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.