What does P402 mean?

What kind of precautionary statement is P402?

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 used by Chemoris, P402 is not linked directly to a class; it is used as part of a combined statement or at the supplier's choice.

Combined statements containing this code

• P402+P404

Neighbouring statements of the same kind

The statements closest in number to P402 in the storage group:

• P401Store in accordance with… .
• P403Store in a well-ventilated place.
• P404Store in a closed container.
• P405Store locked up.

How is P402 read?

The length of P402 is 5 words. The text is a single instruction without options and is written as it appears in Annex IV.

Where is P402 written in the SDS?

When you prepare an SDS, P402 goes into Section 2.2; options in the text (slashes or square brackets) are narrowed down to the product before it is written. The statement should also agree with the safe storage conditions in Section 7.2.

How does P402 appear on the label?

The classes and the use of the product decide whether it reaches the label; not all candidates are written, at most 6 statements remain. 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 P402 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 P402 assigned to?

Related assignment entries: 1 class/category entries, 1 different H statements. Priority split: core (priority 1) in 1 entries. Of these entries, 0 carry the signal word “Danger”, 0 carry “Warning” and 1 need no signal word.

The class families it appears in most often: Water-react. * (1).

Classes that P402 is assigned to

P402 is not assigned to a class on its own; the combined statements it belongs to (P402+P404) are assigned to these classes:

Where does P402 stand in the storage group?

P402 is number 2 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 The group holds 6 combined and 2 withdrawn statements and 12 single valid statements.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 P402 feed?

Because of its number and its storage kind, P402 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 P402

• P402 is a part of the combined statements P402+P404; when a combined statement is selected, P402 is not repeated on the label.
• P402 should agree with Section 7; in Section 2.2 it is written with its code and text.
• The text is 5 words long; if the label space is narrow, choosing a combined statement can save room.

Official EU wording of P402 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 P402 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 P402 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