P302+P335+P334 · Precautionary statementIF ON SKIN: Brush off loose particles from skin and immerse in cool water [or wrap in wet bandages].

Precautionary · ResponsePhysicalCombinedDiffers: US, EU, Canada

P302+P335+P334 is the GHS precautionary statement “IF ON SKIN: Brush off loose particles from skin and immerse in cool water [or wrap in wet bandages]”. UN GHS Annex 3 assigns it to Pyrophoric solids (chapter 2.10), Category 1 and Substances and mixtures which, in contact with water, emit flammable gases (chapter 2.12), Category 1, 2. The wording differs in US OSHA, EU CLP and Canada. The Canadian French and Mexican Spanish wording is in the table below. In the UN GHS Rev.11 label matrix it is used with 3 hazard statements (UN only).

Maintained by Valenc. Data checked 2026-10-20.

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 UN

GHS Rev.11 (2025), Annex 3

IF ON SKIN: Brush off loose particles from skin and immerse in cool water [or wrap in wet bandages].

UN GHS Rev.11, Annex 3, Table A3.2.3, PDF p. 331

US OSHA HCS

Differs

HCS 2024 · primarily GHS Rev.7, some Rev.8

If on skin: Brush off loose particles from skin. Immerse in cool water or wrap in wet bandages.

29 CFR 1910.1200 App. C, matched by wording

EU CLP

Differs

EU_CLP_2025 · consolidated 1 Jul 2026

IF ON SKIN: Brush off loose particles from skin. Immerse in cool water [or wrap in wet bandages].

EU CLP, Annex IV, Part 2

Canada (EN)

Differs

WHMIS_2022 · GHS Rev.7 (Rev.8 for chemicals under pressure)

IF ON SKIN: Brush off loose particles from skin. Immerse in cool water [or wrap in wet bandages].

GHS Rev.7 Annex 3 Table A3.2

Canada (FR)

Adopted

WHMIS_2022 · SGH Rév.7, texte officiel

EN CAS DE CONTACT AVEC LA PEAU : Enlever avec précaution les particules déposées sur la peau. Rincer à l'eau fraîche [ou poser une compresse humide].

GHS Rev.7 Annex 3 Table A3.2

Mexico (ES)

Adopted

NOM-018-STPS-2015 · GHS 5th revised edition

En caso de contacto con la piel, cepillar las partículas sueltas depositadas en la piel; sumergir en agua fría o envolver en vendas húmedas

NOM-018-STPS-2015, DOF 9 October 2015, Apéndice D, Tabla D.1, PDF p. 37

Hazard classes and categories

Pyrophoric solids (chapter 2.10) · Category 1
Substances and mixtures which, in contact with water, emit flammable gases (chapter 2.12) · Category 1, 2

UN GHS Rev.11 Annex 3, sections 1 and 2

H statements it is used with in the UN GHS Rev.11 label matrix only

UN GHS Rev.11 only. EU CLP, US OSHA, Canada (GHS Rev.7) and Mexico assign their own P statements; check the regulation for your market.

H250 H260 H261

UN GHS Rev.11 Annex 3, section 3. Listed for at least one category that uses each H statement.

Conditions for use

text in square brackets to be used for pyrophoric solids
use only “Immerse in cool water.” Text in square brackets should not be used.

Quoted as published in UN GHS Rev.11 Annex 3, section 2. List markers are shown as bullets.

Related codes

P302 P335 P334

Change in UN GHS Rev.11

No change to the wording or the hazard classes in Annex 3 compared with Rev.10.

Notes

EU CLP wording differs from UN GHS Rev.11.

Sources

Each cell in the table names the official table and page for P302+P335+P334. 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.