What does P407 mean?

What kind of precautionary statement is P407?

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, P407 is assigned to the classes of these hazard statements:

• H251Self-heating: may catch fire.
• H252Self-heating in large quantities; may catch fire.

How many hazard statements is P407 assigned to?

In the CLP Annex IV assignment table, P407 is provided for the classes of 2 H statements in total: 2 physical hazard statements. The lowest-numbered example is H251 and the highest-numbered is H252. 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 P407 in the storage group:

• P404Store in a closed container.
• P405Store locked up.
• P406Store in a corrosion-resistant/… container with a resistant inner liner.
• P410Protect from sunlight.
• P411Store at temperatures not exceeding … o C/… o F.
• P412Do not expose to temperatures exceeding 50 o C/122 o F.

How is P407 read?

This statement is a 7-word text. The text is a single instruction without options and is written as it appears in Annex IV.

Where is P407 written in the SDS?

If P407 is on the list of precautionary statements in Section 2.2, it is printed with its code and the text "Maintain air gap between stacks or pallets.". The statement should also agree with the safe storage conditions in Section 7.2.

How does P407 appear on the label?

P407 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 P407 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 P407 assigned to?

In the CLP Annex IV assignment table, P407 appears in 1 class/category entries (1 different H statements). Priority split: secondary (priority 2) 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: Self-heat. * (1).

Classes that P407 is assigned to

The first 1 rows of 1 entries in the CLP Annex IV assignment table (by priority and hazard order):

Statements assigned together with P407

The precautionary statements that most often appear with P407 in the same class entries (with entry count):

• P235Keep cool. (1)
• P280Wear protective gloves/protective clothing/eye protection/face protection. (1)
• P413Store bulk masses greater than … kg/… lbs at temperatures not exceeding … o C/… o F. (1)
• P420Store separately. (1)

Where does P407 stand in the storage group?

P407 is number 7 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 P407 feed?

Because of its number and its storage kind, P407 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 P407

• P407 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 P407 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 P407 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 P407 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