Flammable solids — dangerous goods classification
Division 4.1 covers readily combustible solids, self-reactive substances and desensitised explosives. Matches, fire starters and sulfur are the common cases.
The mistake this category generates
Safety matches are forbidden in cargo by air, despite being packing group III and looking entirely innocuous.
Entries (3)
| UN | Proper shipping name | Class | PG | Labels | Air |
|---|---|---|---|---|---|
| UN1944 | Matches, safety | 4.1 | III | FLAMMABLE SOLID | pax forbidden·cargo forbidden |
| UN1325 | Flammable solid, organic, n.o.s. | 4.1 | none | FLAMMABLE SOLID | pax limited·cargo permitted |
| UN1350 | Sulfur | 4.1 | III | FLAMMABLE SOLID | pax limited·cargo permitted |
Shipper notes
UN1944 Matches, safety
- Forbidden in cargo by air. A passenger may carry one small packet on their person.
UN1325 Flammable solid, organic, n.o.s.
- Packing group follows the burning rate measured in the UN test N.1.
UN1350 Sulfur
- Not regulated when formed to a specific shape under special provision 30.
Questions
- What UN number applies to flammable solids?
- Division 4.1 covers readily combustible solids, self-reactive substances and desensitised explosives. Matches, fire starters and sulfur are the common cases.
- What do people get wrong about shipping flammable solids?
- Safety matches are forbidden in cargo by air, despite being packing group III and looking entirely innocuous.
- Which entries does Classify7 encode for flammable solids?
- UN1944 Matches, safety (class 4.1, packing group III); UN1325 Flammable solid, organic, n.o.s. (class 4.1); UN1350 Sulfur (class 4.1, packing group III)
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Which of these entries applies depends on the formulation, not the category. Send the product and Classify7 returns the entry with the evidence that selected it — or tells you which measurement it needs first.
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