ADR tank code L10DH(+)

ADR tank code for Classes 1 and 3–9: liquid tank, 10 bar, openings D, hermetically closed, suffix (+).

L10DH(+) is decoded part by part from the 4.3.4.1.1 table for Classes 1 and 3–9. Part 1 "L" is a tank for liquid-state substances (liquids, or solids handed over molten); part 2 "10" is minimum calculation pressure of 10 bar (see 6.8.2.1.14). Part 3 "D" (openings): filled and discharged from the top; nothing opens below the liquid surface. Part 4 "H" (safety valves/devices): the tank is hermetically closed (see 1.2.1). The "(+)" restricts the tank: it may be used alternately for other substances only if its certificate of type approval allows it, and the column (13) special provisions complete the requirements (4.3.4.1.3). The code gives the least stringent tank accepted; others may be used under the hierarchy in 4.3.4.1.2.

The code, part by part
tank type: Ltank for liquid-state substances (liquids, or solids handed over molten)
calculation pressure: 10minimum calculation pressure of 10 bar (see 6.8.2.1.14)
openings: Dfilled and discharged from the top; nothing opens below the liquid surface
safety valves: Hhermetically closed (see 1.2.1)
suffix: (+)alternative use of the tank for other substances is allowed only where the certificate of type approval says so (3.2.1 column (12); 4.3.4.1.3)

Note. Tank codes permitted in place of this one: see the rationalized approach and hierarchy in 4.3.4.1.2 (Volume II pages 217–222); not computed here. L10DH is printed in the 4.3.4.1.3 list on page 222, whose columns read scrambled in the extraction; the UN numbers it applies to should be read from that list.

Refers to: 4.3.4.1.1; 4.3.4.1.2; 6.8.2.1.14; 6.8.2.2.2; 6.8.2.2.6; 1.2.1; 4.3.4.1.3.

Carried by 3 Table A entries

UN 1381 · UN 2447

Source: ADR 2025 (ECE/TRANS/352), Volume II, section 4.3.4.1.1, tank code L10DH(+), page 222.

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.