What does P410+P403 mean?

What kind of precautionary statement is P410+P403?

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, P410+P403 is assigned to the classes of these hazard statements:

• H280Contains gas under pressure; may explode if heated.
• H281Contains refrigerated gas; may cause cryogenic burns or injury.

Parts of the combined statement

• P410
• P403

How many hazard statements is P410+P403 assigned to?

In the CLP Annex IV assignment table, P410+P403 is provided for the classes of 2 H statements in total: 2 physical hazard statements. The lowest-numbered example is H280 and the highest-numbered is H281. 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 P410+P403 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.
• P403+P235Store in a well-ventilated place. Keep cool.
• 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 P410+P403 read?

The length of P410+P403 is 8 words. Because it is a combined statement, it replaces 2 separate statements in a single line; the parts are listed below.

Where is P410+P403 written in the SDS?

When you prepare an SDS, P410+P403 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 P410+P403 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 P410+P403 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 P410+P403 assigned to?

In the CLP Annex IV assignment table, P410+P403 appears in 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”, 1 carry “Warning” and 0 need no signal word. The pictograms that most often accompany it: GHS04 (1).

The class families it appears in most often: Press. Gas* (1).

Classes that P410+P403 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 P410+P403

The precautionary statements that most often appear with P410+P403 in the same class entries (with entry count):

• P410+P403Protect from sunlight. Store in a well-ventilated place. (1)

Where does P410+P403 stand in the storage group?

P410+P403 is number 17 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 P410+P403 feed?

Because of its number and its storage kind, P410+P403 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 P410+P403

• P410+P403 should agree with Section 7; in Section 2.2 it is written with its code and text.
• The text is 8 words long; if the label space is narrow, choosing a combined statement can save room.

Official EU wording of P410+P403 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 P410+P403 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 P410+P403 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