ADR tank code LGAV(+)

ADR tank code for Classes 1 and 3–9: liquid tank, G (general minimum), openings A, valves/devices V, suffix (+).

LGAV(+) 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 "G" is minimum calculation pressure under the general requirements of 6.8.2.1.14. Part 3 "A" (openings): filling or discharge openings at the bottom, each with 2 closures. Part 4 "V" (safety valves/devices): the tank has a 6.8.2.2.6 breather device but no flame-propagation protection, or is not explosion-pressure-shock resistant. 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: Gminimum calculation pressure under the general requirements of 6.8.2.1.14
openings: Afilling or discharge openings at the bottom, each with 2 closures
safety valves: Vhas a 6.8.2.2.6 breather device but no flame-propagation protection, or is not explosion-pressure-shock resistant
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. LGAV 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 1 Table A entry

UN 3375

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

Paraphrase in FreightUtils' own words, not the official text. Not yet reviewed.

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