GHS hazard statement
H340
May cause genetic defects (mutagen)
GHS08 · Health hazard- Hazard group
- Health hazards
- Hazard class
- Germ cell mutagenicity
- Signal word
- Danger
What H340 means
H340 is the GHS (Globally Harmonized System) hazard statement “May cause genetic defects (mutagen).” It belongs to the Germ cell mutagenicity hazard class and appears in Section 2 of a Safety Data Sheet and on the product label when a substance or mixture meets the classification criteria for that class and category.
Where H340 applies, GHS assigns the signal word Danger and the GHS08 (Health hazard) pictogram. The exact signal word and pictogram set on a finished label come from the whole classification — the most severe endpoint drives the signal word, so a milder statement can be present without changing an already-Danger label.
Related statements — Germ cell mutagenicity
Classifying a mixture for this hazard? Try the free Health hazard (sum-of-parts) calculator — it runs the GHS math for you, nothing stored.
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Reference information, not a compliance determination. Actual label elements depend on the full classification of your specific substance or mixture and require review by a qualified professional.