What does P403+P235 mean?

What kind of precautionary statement is P403+P235?

Storage statements (P4xx) set the conditions for keeping the product safely: locked up, in a cool, well-ventilated place or in the original container, protected from sunlight. Warehouse layout and container choice follow from these statements.

Which hazards is it used for?

In the CLP Annex IV assignment table, P403+P235 is assigned to the classes of these hazard statements:

• H224Extremely flammable liquid and vapour.
• H225Highly flammable liquid and vapour.
• H226Flammable liquid and vapour.
• H240Heating may cause an explosion.
• H241Heating may cause a fire or explosion.
• H242Heating may cause a fire.

Parts of the combined statement

• P403
• P235

How many hazard statements is P403+P235 assigned to?

In the CLP Annex IV assignment table, P403+P235 is provided for the classes of 6 H statements in total: 6 physical hazard statements. The lowest-numbered example is H224 and the highest-numbered is H242. Whether a mixture label carries this statement depends on those classes really applying to the mixture.

Neighbouring statements of the same kind

The statements closest in number to P403+P235 in the storage group:

• P402+P404Store in a dry place. Store in a closed container.
• P403+P233Store in a well-ventilated place. Keep container tightly closed.
• P410+P403Protect from sunlight. Store in a well-ventilated place.
• P410+P412Protect from sunlight. Do no expose to temperatures exceeding 50 o C/122 o F.
• P411+P235Store at temperatures not exceeding … o C/… o F. Keep cool.

How is P403+P235 read?

This statement is a 7-word text. Because it is a combined statement, it replaces 2 separate statements in a single line; the parts are listed below.

Where is P403+P235 written in the SDS?

If P403+P235 is on the list of precautionary statements in Section 2.2, it is printed with its code and the text "Store in a well-ventilated place. Keep cool.". The statement should also agree with the safe storage conditions in Section 7.2.

How does P403+P235 appear on the label?

P403+P235 shows up on a label only if it is selected: the candidates from Annex IV are reduced to at most 6 under Article 28(3). In the Chemoris selection method, storage statements are considered in position 3. If the core statements exceed 6, Article 28(3) allows up to 8; when a combined statement is chosen, its individual parts are not repeated on the label. As P403+P235 is on the list of precautionary statements of Annex IV, it can be used in current labels and SDSs; Chemoris writes it into the document only when the relevant storage candidate is selected.

Which classes and which priority is P403+P235 assigned to?

In the CLP Annex IV assignment table, P403+P235 appears in 5 class/category entries (1 different H statements). Priority split: core (priority 1) in 5 entries. Of these entries, 2 carry the signal word “Danger”, 1 carry “Warning” and 2 need no signal word. The pictograms that most often accompany it: GHS02 (3).

The class families it appears in most often: Flam. Liq. (3), Self-react. * (1) and Org. Perox. * (1).

Classes that P403+P235 is assigned to

The first 5 rows of 5 entries in the CLP Annex IV assignment table (by priority and hazard order):

Statements assigned together with P403+P235

The precautionary statements that most often appear with P403+P235 in the same class entries (with entry count):

• P370+P378In case of fire: Use… to extinguish. (5)
• P210Keep away from heat, hot surfaces, sparks, open flames and other ignition sources. No smoking. (5)
• P280Wear protective gloves/protective clothing/eye protection/face protection. (5)
• P403+P235Store in a well-ventilated place. Keep cool. (5)
• P501Dispose of contents/container to … (5)

Where does P403+P235 stand in the storage group?

P403+P235 is number 16 of the 19 statements in the P4xx group. The group holds 6 combined and 2 withdrawn statements and 12 single valid statements. Combined statements merge several situations on one line; withdrawn statements are replaced by their current equivalents.

Which SDS section does P403+P235 feed?

Because of its number and its storage kind, P403+P235 relates to Section 7 Handling and storage of the SDS; in Section 2.2 it is written with its code and text. Statements in the same number range feed the same section.

Checklist when writing P403+P235

• P403+P235 should agree with Section 7; in Section 2.2 it is written with its code and text.
• The text is 7 words long; if the label space is narrow, choosing a combined statement can save room.

Official EU wording of P403+P235 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 P403+P235 from the CLP Annex III/IV language versions published in the Official Journal of the European Union. Source: EUR-Lex CELEX 02008R1272-20260701.

Next steps

To read a statement like P403+P235 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.

Where does it appear in the safety data sheet?

Precautionary statements are given with their code and full text in Section 2.2 (label elements) of the safety data sheet. Alternatives separated by a slash or in square brackets (e.g. gloves/protective clothing) are narrowed down to suit the product.

Frequently asked questions