What does H314 mean?

Categories and label elements

CLP abbreviation	Pictogram	Signal word
Skin Corr. 1A	GHS05Corrosion	Danger
Skin Corr. 1B	GHS05Corrosion	Danger
Skin Corr. 1C	GHS05Corrosion	Danger

Related precautionary statements (P codes)

The precautionary statements that CLP Annex IV assigns to this class. Not all of them go on the label: under CLP Article 28(3), no more than six precautionary statements appear on the label unless the nature and severity of the hazard require more; the selection depends on the product and its users.

When does a mixture need H314?

For a pure substance H314 comes straight from the classification; for a mixture it is derived from component data. The calculation rules applied to this code are:

• Skin Corr. 1A: A component of this class is taken into account in a mixture only at a concentration of ≥ 1 %. (CLP Annex I Table 1.1; 3.2.3.3.1)
• Skin Corr. 1A: Summation method: the weighted sum of the qualifying components must reach ≥ 5 % for the mixture to be classified Skin Corr. 1A (H314). (CLP Annex I Table 3.2.3)
• Skin Corr. 1A: If a component has a harmonised specific concentration limit (SCL) and meets it, the mixture takes the corresponding class directly.
• Skin Corr. 1B: Summation method: the weighted sum of the qualifying components must reach ≥ 5 % for the mixture to be classified Skin Corr. 1B (H314). (CLP Annex I Table 3.2.3)
• Skin Corr. 1C: Summation method: the weighted sum of the qualifying components must reach ≥ 5 % for the mixture to be classified Skin Corr. 1C (H314). (CLP Annex I Table 3.2.3)

For a step-by-step worked example see classifying a mixture under CLP.

Where is H314 written in the SDS?

In the prepared SDS the class "Skin Corr. 1A / Skin Corr. 1B / Skin Corr. 1C" is matched with the code in Section 2.1, the text of H314 is written in Section 2.2 next to the pictogram and signal word, and the class of the component shows up in Section 3. Section 16 collects the full text of the H statements cited by code. For H314, it appears in Section 11 (toxicological information), under heading 11.1, as a "Classified" line when the class is among the classes of the mixture.

How does H314 appear on the label?

When you see H314 on a label it is accompanied by GHS05 (corrosion), and it is written with the signal word "Danger". In the Chemoris template Section 2.2 carries at most 8 H statements; if the limit is exceeded the least severe ones are dropped and a warning is shown. For the bottom of the label, 12 P statements are candidates for this class in CLP Annex IV; under CLP Article 28 at most 6 of them are selected.

Where does it appear in the safety data sheet?

• Section 2.1: classification; the class abbreviation and H314 are given together.
• Section 2.2: label elements; H314 with its full text, pictogram and signal word.
• Section 3: composition table; in the row of every component that has this class.
• Section 16: the full text of the H statements cited as codes in earlier sections.

Class criteria and thresholds for H314

The values below come from the Chemoris rule file (CLP Annex I). They show the condition under which H314 arises in a mixture. For physical hazards and other classes that depend on test data, the result comes from the mixture's own measurement, not from component percentages.

H314 compared with H318 and H315

The table below puts H314 next to its closest neighbouring statements; the values are read from the rule data.

H314 and H318 carry the same signal word (Danger). Both are shown with the same pictogram (GHS05). They are not printed together: when Skin Corr. 1A/1B/1C/1 applies, Eye Dam. 1 is not repeated (CLP Annex I 3.3.2.1 and ECHA CLP Kriterleri Rehberi 3.3.2 (H314 → H318 etikette tekrarlanmaz)). The signal word differs: Danger for H314, Warning for H315. The pictogram differs: GHS05 for H314, GHS07 for H315. They are not printed together: when Skin Corr. 1A/1B/1C/1 applies, Skin Irrit. 2 + Eye Irrit. 2 is not repeated (CLP Annex I 3.2.3.3.4 / 3.3.3.3.4 (the more severe class takes precedence)).

H318 H315

In which SDS sections does H314 appear?

H314 does not stay only in the label section of an SDS; the class itself and the precautionary statements assigned to it shape the content of other sections too. The counts are calculated from the P statements that Annex IV assigns to this class.

Statements that appear on the label together with H314

H314 is never printed alone on a label; it sits next to the pictogram and the signal word. The Chemoris selection method (response, prevention, storage, disposal in that order; core statements first) gives these first 5 candidates for this class:

(Skin Corr. 1A)

The GHS05 pictogram and “Danger” are printed together. This ranking applies because a label usually carries at most 6 statements; when a combined statement is selected, its parts are not printed again.

Official EU wording of H314 in other languages

When a product is exported to the EU, the SDS and label are expected in the official language of the Member State where it is placed on the market (REACH Article 31(5)). The table gives the official wording of H314 from the CLP Annex III/IV language versions published in the Official Journal of the European Union. Source: EUR-Lex CELEX 02008R1272-20260701.

Common mistakes with H314

• Pouring every P candidate onto the label: there are 12 candidates, but CLP Article 28(3) limits a label to 6 precautionary statements (up to 8 when needed).
• Writing unlimited H statements for a multi-class product: in the Chemoris template, Section 2.2 holds at most 8 H statements.

Next steps

To read a statement like H314 correctly on a label and in an SDS, see the guide How to read H and P codes; to pick the class and prepare the label automatically, use the free label tool.

Related hazard statements

Other H statements in the same hazard family as H314 (Skin Corr.). The difference between categories mostly comes from the degree of severity.

• H310Fatal in contact with skin.
• H311Toxic in contact with skin.
• H312Harmful in contact with skin.
• H315Causes skin irritation.
• H317May cause an allergic skin reaction.
• H318Causes serious eye damage.
• H319Causes serious eye irritation.

Frequently asked questions