EUH018 · EU CLP Supplemental statementIn use may form flammable/explosive vapour-air mixture.

EUH · EU onlyPhysical

EUH018 is the EU CLP supplemental hazard statement “In use may form flammable/explosive vapour-air mixture”. Listed in EU CLP.

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

Heading text: EU CLP. Wording can differ by jurisdiction; see the table below.

Wording by jurisdiction

UN GHS Rev.11

Not in UN

GHS Rev.11 (2025), Annex 3

EU-only statement, not part of the UN GHS.

US OSHA HCS

Not adopted

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

EU-only statement.

EU CLP

EU only

EU_CLP_2025 · consolidated 1 Jul 2026

In use may form flammable/explosive vapour-air mixture.

EU CLP, Annex III, Part 2 (supplemental hazard information)

Canada (EN)

Not adopted

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

EUH statements are EU-only.

Canada (FR)

Not adopted

WHMIS_2022 · SGH Rév.7, texte officiel

EUH statements are EU-only.

Mexico (ES)

Not adopted

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

EUH statements are EU-only.

Related codes

EUH014 EUH019 EUH029 EUH031

Change in UN GHS Rev.11

Not part of the UN GHS, so Rev.11 does not apply.

Sources

Each cell in the table names the official table and page for EUH018. 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.