ADR hazard number 558
Hazard identification number 558 on the orange plate: strongly oxidizing (fire-intensifying) substance that is also corrosive.
Printed in the upper half of the orange-coloured plate above the UN number, 558 identifies a strongly oxidizing (fire-intensifying) substance that is also corrosive. A repeated figure means that hazard is intensified.
| 5 | oxidizing effect: the substance intensifies fire |
|---|---|
| 5 | repeated 5: doubling a figure means that hazard (oxidizing effect) is intensified |
| 8 | corrosive |
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 1 Table A entry
Source: ADR 2025 (ECE/TRANS/352), Volume II, section 5.3.2.3.2, 558, page 268.
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.