ADR special packing provision PP93
UN 3532 and 3534 packagings must be built to vent gas or vapour so pressure cannot burst them if stabilization fails.
Under P001, packagings for UN 3532 and 3534 must be designed to let gas or vapour escape, so a pressure build-up after loss of stabilization cannot rupture them.
Note. Appears only in P001. Same effect as PP92 (P002) and the IBC provisions B18 and B19.
Carried by 2 Table A entries
Source: ADR 2025 (ECE/TRANS/352), Volume II, section 4.1.4.1, P001, PP93, page 50.
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.