The mark

Why there is no example mark here

On this page11

The regulation does provide examples But they are images So it reproduces nothing Which matters more here than elsewhere The same discipline appears twice more in this library What to do instead And ask the manufacturer for the documentation Which is the thing we cannot supply This is not hedging Read the mark on what you buy References

There is no sentence to quote, so this property does not invent one.

The regulation does provide examples

At paragraph (e)(2), for a fiberboard box, a steel drum for liquids and a steel drum for solids, each referring back to the numbered elements.

But they are images

The specimen marks are printed as graphics rather than as text, so there is no quotable string and nothing this property can reproduce exactly.

So it reproduces nothing

The elements and their order are quoted because they are text. A worked specimen is not, because inventing one would be publishing a mark that no regulation printed.

Which matters more here than elsewhere

A made-up example mark on a packaging catalog page is exactly the kind of thing somebody copies. A wrong one copied is worse than no example at all.

The same discipline appears twice more in this library

The model parts property declines to quote the small parts cylinder dimensions, which the rule gives in a figure. The fly tying property declines to list protected species.

What to do instead

Look at a marked container, or at the regulation's own figures. The elements on the previous page tell you what each position means and that is enough to read a real one.

And ask the manufacturer for the documentation

A UN specification packaging comes with a test report and a certification. The mark is the summary; the paperwork is the substance.

Which is the thing we cannot supply

We do not record the mark and we hold no test documentation. For specification packaging, buy from somebody who does both.

This is not hedging

It is the difference between a catalog that is useful and one that is dangerous. A buyer who believes an unmarked container is marked has been misled by the page.

Read the mark on what you buy

Whoever you buy from. The skill transfers and it is the only part of this that a container catalog can give you for free.

References

49 CFR 178.503(a), marking of UN specification packagings. In sequence: the United Nations symbol "as illustrated in paragraph (e)(1)(i)", or the letters UN on embossed metal receptacles; the packaging identification code designating type, material and category, with the letters V or W where applicable; a letter identifying the performance standard; the specific gravity or mass tested for; the test pressure or the letter S; "The last two digits of the year of manufacture"; the authorizing country, for example USA; "The name and address or symbol of the manufacturer"; and for reusable drums and jerricans the material thickness in millimetres. The example markings at (e)(2) are given as images rather than text. law.cornell.edu

Our catalog records material, capacity, neck finish, dimensions and case pack. It does NOT record whether a container carries a UN specification mark, which is the attribute that defines the product two of this group's four leaves describe. Nothing here is offered as UN specification packaging and nothing here should be assumed to be.

Written from 49 CFR 178.503 and from the catalog as it stood on 19 October 2026. No specimen UN mark appears here, because the regulation gives its examples as images rather than as text. Nothing in this catalog is offered as UN specification packaging: we do not record whether a container carries a mark, and the mark belongs to a tested design type and is applied by its manufacturer. Packing group determinations, shipping names and documentation are the shipper's.