ADR hazard number 339
Hazard identification number 339 on the orange plate: highly flammable liquid able to lead spontaneously to a violent reaction.
Printed in the upper half of the orange-coloured plate above the UN number, 339 identifies a highly flammable liquid able to lead spontaneously to a violent reaction. A repeated figure means that hazard is intensified.
| 3 | flammable liquid (vapours) or gas, or a self-heating liquid |
|---|---|
| 3 | repeated 3: doubling a figure means that hazard (flammable liquid) is intensified |
| 9 | risk of a spontaneous violent reaction (by the nature of the substance: explosion, disintegration or polymerization with much heat or flammable and/or toxic gases released) |
Note. Number and meaning pairing checked against a second text extraction of the list.
Refers to: 5.3.2.3.1; 5.3.2.2.3; Table A column (20).
Carried by 16 Table A entries
UN 1144 · UN 1167 · UN 1218 · UN 1246 · UN 1247 · UN 1301 · UN 1302 · UN 1303 · UN 1304 · UN 1917 · UN 1919 · UN 2251 · UN 2277 · UN 2352 · UN 2838 · UN 3022
Source: ADR 2025 (ECE/TRANS/352), Volume II, section 5.3.2.3.2, 339, page 267.
Paraphrase in FreightUtils' own words, not the official text. Not yet reviewed.
ADR 2027 amendments (accepted, applying from 1 January 2027) are not yet reflected on this page.