UN 3539 — ADR 2025 Table A: class 2, classification code 6T, packing group —, labels See 5.2.2.1.12, special provisions 274, limited quantity 0, excepted quantity E0, packing instructions P006 LP03, transport category 4, tunnel restriction code (E), hazard identification number —.

UNECE ADR 2025, ECE/TRANS/352 · checked 2026-10-28

Table A — ADR 2025 (ECE/TRANS/352), UN 3539
(1) UN No.	3539
(2) Name and description	ARTICLES CONTAINING TOXIC GAS, N.O.S.
(3a) Class	2
(3b) Classification code	6T
(4) Packing group	—
(5) Labels	See 5.2.2.1.12
(6) Special provisions	274
(7a) Limited quantities	0
(7b) Excepted quantities	E0
(8) Packaging: packing instructions	P006 LP03
(9a) Packaging: special packing provisions	—
(9b) Packaging: mixed packing provisions	—
(10) Portable tanks and bulk containers: instructions	—
(11) Portable tanks and bulk containers: special provisions	—
(12) ADR tank: tank code	—
(13) ADR tank: special provisions	—
(14) Vehicle for tank carriage	—
(15) Transport category (Tunnel restriction code)	4 (E)
(16) Special provisions for carriage: packages	—
(17) Special provisions for carriage: bulk	—
(18) Special provisions for carriage: loading, unloading and handling	CV13 CV28
(19) Special provisions for carriage: operation	—
(20) Hazard identification No.	—

ADR 2027 (accepted) — no change for UN 3539

ADR 2027 was accepted: depositary notification C.N.395.2026 (9 October 2026) records no objection to the amendments proposed by C.N.252.2026. It applies from 1 January 2027, and ADR 2025 may still be applied until 30 June 2027 (1.6.1.1). (C.N.395.2026)

ADR 2027: no Table A change for this entry (checked against ECE/TRANS/WP.15/274, Add.1 and Corr.1). Other parts of ADR 2027 may still affect its carriage.

ADR 2025 remains the edition FreightUtils serves and the one that applies until ADR 2027 takes effect on 1 January 2027; after that, ADR 2025 may still be applied until 30 June 2027 (1.6.1.1).

All ADR 2027 Table A changes →Check a list of UN numbers →

In plain words

Tunnels: Tunnel code (E): in tanks, Prohibited in E; in other carriage, Prohibited in E. Every category except E. (ADR 8.6.4; from the ADR table itself)
Small-load exemption: Transport category 4: no quantity limit under 1.1.3.6 (ADR 1.1.3.6.3; from the ADR table itself)
Packing: Packing instruction P006: Articles containing dangerous goods (UN 3537-3548): drums, boxes, jerricans at PG II level, strong outer packagings or unpackaged for robust articles. Packing instruction LP03: Articles of UN 3537 to 3548 in rigid 50-series large packagings at packing group II level, with rules on internal receptacles and prototypes. (ADR 4.1.4.1, P006, 4.1.4.3, LP03; paraphrase, not yet reviewed)
Carriage: Loading provision CV13: After a leak or spill, clean (and if needed disinfect or decontaminate) the vehicle or container before reuse; check other goods for contamination. Loading provision CV28: Pointer: the provisions of 7.5.4 apply. (ADR 7.5.11, CV13, 7.5.11, CV28; paraphrase, not yet reviewed)

Assembled from FreightUtils' meanings of the Table A codes, not the official text. A statement marked “not yet reviewed” has not yet been checked against ADR by a person.

Class 2 — Gases

UN 3539Class 2 — Gases