ADR special provision 581
Covers propadiene with 1–4 % methylacetylene and the named mixtures P1 and P2, which may be described as "Mixture P1"/"Mixture P2".
The entry takes in propadiene containing 1 to 4 % methylacetylene, plus two defined mixtures. Mixture P1 has at most 63 % methylacetylene and propadiene, at most 24 % propane and propylene, and at least 14 % C4-saturated hydrocarbons. Mixture P2 has at most 48 %, at most 50 % and at least 5 % of the same components. These mixtures may use "Mixture P1" or "Mixture P2" as the technical name in the transport document (5.4.1.1).
| Value | Applies when |
|---|---|
| 1 to 4 % methylacetylene | propadiene mixtures covered generally |
| 63 % by volume, max | Mixture P1, methylacetylene and propadiene |
| 24 % by volume, max | Mixture P1, propane and propylene |
| 14 % by volume, min | Mixture P1, C4-saturated hydrocarbons |
| 48 % by volume, max | Mixture P2, methylacetylene and propadiene |
| 50 % by volume, max | Mixture P2, propane and propylene |
| 5 % by volume, min | Mixture P2, C4-saturated hydrocarbons |
Note. The mixture table prints as scrambled columns; values assigned to P1/P2 row-by-row as printed (63/24/14 and 48/50/5). The third component heading reads "4-saturated hydrocarbons", read as C4-saturated.
Refers to: 5.4.1.1.
Carried by 1 Table A entry
Source: ADR 2025 (ECE/TRANS/352), Volume I, section 3.3.1, special provision 581, page 645.
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.