ADR tank code PxBN(M)

ADR tank code for Class 2 gases: liquefied/dissolved gas tank, X (test pressure from 4.3.3.2.5), openings B, valves/devices N, suffix (M).

PxBN(M) is decoded part by part from the 4.3.3.1.1 table for Class 2 gases. Part 1 "P" is a tank, battery-vehicle or MEGC for liquefied or dissolved gases; part 2 "X" is the minimum relevant test pressure taken from the table in 4.3.3.2.5 for the gas. Part 3 "B" (openings): tank filled or discharged from the bottom through openings having 3 closures; or a battery-vehicle/MEGC with openings below the liquid surface or for compressed gases. Part 4 "N" (safety valves/devices): the tank has a safety valve conforming to 6.8.3.2.9 / 6.8.3.2.10 that is not hermetically closed. The "(M)" after the code means the gas may also go in battery-vehicles or MEGCs. The code gives the least stringent tank accepted; others may be used under the hierarchy in 4.3.3.1.2.

Note. Tank codes permitted in place of this one: see the hierarchy in 4.3.3.1.2 (Volume II page 208); not computed here. "x" in the code stands for the value X, read per gas from the 4.3.3.2.5 table. The (M) suffix is explained in 3.2.1 under column (12) (Volume I page 297), not in the 4.3.3.1.1 table.

Refers to: 4.3.3.1.1; 4.3.3.1.2; 4.3.3.2.5; 6.8.3.2.9; 6.8.3.2.10; 1.2.1; 6.8.2.2; 6.8.3.2.

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