ADR special packing provision B5
UN 1791, 2014, 2984 and 3149 in IBCs need a venting device, with its inlet in the vapour space.
For UN 1791, 2014, 2984 and 3149 carried under IBC02, the IBC must have a device that lets it vent during carriage. The device inlet has to sit in the vapour space of the IBC when it is filled to its maximum filling for carriage.
Note. Appears only in IBC02. The packaging equivalent for these UN numbers is PP10 (P001, P504).
Carried by 5 Table A entries
UN 1791 · UN 2014 · UN 2984 · UN 3149
Source: ADR 2025 (ECE/TRANS/352), Volume II, section 4.1.4.2, IBC02, B5, page 148.
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.