ADR special packing provision B20
UN 3550 may also go in flexible IBCs 13H3 or 13H4 fitted with siftproof liners against dust escape.
Under IBC07, UN 3550 may additionally be carried in flexible IBCs of type 13H3 or 13H4, provided they have siftproof liners that stop dust from escaping during carriage.
Note. Appears only in IBC07.
Carried by 1 Table A entry
Source: ADR 2025 (ECE/TRANS/352), Volume II, section 4.1.4.2, IBC07, B20, page 149.
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.