UN 2448

SULPHUR, MOLTEN

UN 2448 — ADR 2025 Table A: class 4.1, classification code F3, packing group III, labels 4.1, special provisions 538, limited quantity 0, excepted quantity E0, packing instructions —, transport category 3, tunnel restriction code (E), hazard identification number 44.

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

Table A — ADR 2025 (ECE/TRANS/352), UN 2448
(1) UN No.2448
(2) Name and descriptionSULPHUR, MOLTEN
(3a) Class4.1
(3b) Classification codeF3
(4) Packing groupIII
(5) Labels4.1
(6) Special provisions538
(7a) Limited quantities0
(7b) Excepted quantitiesE0
(8) Packaging: packing instructions—
(9a) Packaging: special packing provisions—
(9b) Packaging: mixed packing provisions—
(10) Portable tanks and bulk containers: instructionsT1
(11) Portable tanks and bulk containers: special provisionsTP3
(12) ADR tank: tank codeLGBV(+)
(13) ADR tank: special provisionsTU27 TE4 TE6
(14) Vehicle for tank carriageAT
(15) Transport category (Tunnel restriction code)3 (E)
(16) Special provisions for carriage: packages—
(17) Special provisions for carriage: bulk—
(18) Special provisions for carriage: loading, unloading and handling—
(19) Special provisions for carriage: operation—
(20) Hazard identification No.44

ADR 2027 (accepted) — no change for UN 2448

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.

This entry under ADR 2027 on the API: /api/adr?un=2448&edition=2027 (editions and as_of).

ADR 2025 is the edition that applies until ADR 2027 takes effect on 1 January 2027, and FreightUtils answers on it by default until then; the API answers on ADR 2027 now with edition=2027. After that date, 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 3: at most 1000 per transport unit under 1.1.3.6, counted ×1 toward the 1,000-point limit (ADR 1.1.3.6.3; from the ADR table itself)
Labels
Labels: model 4.1 (Flammable solids, self-reactive and polymerizing substances, and solid desensitized explosives) (ADR 5.2.2.2.2, label model No. 4.1; paraphrase, not yet reviewed)
Tanks
Portable tank instruction T1: Portable tank, Class 1 and 3–9: test 1.5 bar; shell See 6.7.2.4.2; relief Normal; bottom openings See 6.7.2.6.2. Portable tank provision TP3: For solids above melting point and hot liquids, maximum filling (%) is set by 4.2.1.9.5: 95 × dr/df. Tank code LGBV(+): ADR tank code for Classes 1 and 3–9: liquid tank, G (general minimum), openings B, valves/devices V, suffix (+). — L: tank for liquid-state substances (liquids, or solids handed over molten); G: minimum calculation pressure under the general requirements of 6.8.2.1.14; B: filling or discharge openings at the bottom, each with 3 closures; V: has a 6.8.2.2.6 breather device but no flame-propagation protection, or is not explosion-pressure-shock resistant; (+): alternative use of the tank for other substances is allowed only where the certificate of type approval says so (3.2.1 column (12); 4.3.4.1.3) Tank provision TU27: Tanks may be filled to no more than 98 % of capacity. Tank provision TE4: Shells must have thermal insulation made of materials that are not readily flammable. Tank provision TE6: Tanks may be fitted with a non-blocking device that prevents leakage and excess over- or under-pressure in the shell. Vehicle for tank carriage: AT — Tank vehicle for dangerous goods that is not EX/III, FL or a MEMU: tanks over 1 m³ / 3 m³, or battery-vehicle over 1 m³. (ADR 4.2.5.2.6, portable tank instruction T1, 4.2.5.3, TP3, 4.3.4.1.1, tank code LGBV(+), 4.3.5, TU27, 6.8.4 (b), TE4, 6.8.4 (b), TE6, 9.1.1.2, AT vehicle; 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 4.1 — Flammable SolidsPacking Group III
UN 2448Class 4.1 — Flammable SolidsPG III
Packing Group
III
Low danger
Classification Code
F3
Tunnel Code
(E) meaning →
Code governing tunnel passage
Transport Category
3
For the 1,000-point rule (0 = highest restriction)
Hazard ID No.
44
Kemler code
Limited Quantity
0
Max per inner package for LQ relief
Excepted Quantity
E0
EQ code for excepted quantity relief
Thresholds — why, not just the verdict
Transport Category
Category 3
×1 points per kg/L — up to 1,000 kg/L of this substance alone stays under the 1,000-point threshold
Per-substance max
1,000 kg/L
Per-substance maximum for 1.1.3.6 relief (1.1.3.6.3)
Limited Quantity
Not permitted
No limited-quantity relief for this entry (Chapter 3.4)
Excepted Quantity
E0
No excepted-quantity relief for this entry (Chapter 3.5)
Tunnel Code
Governs which tunnel categories the load may pass
Special Provisions
SP 538
May alter scope or limits — full text in ADR 2025 Chapter 3.3
Hazard Labels Required
Label 4.1

These labels must be displayed on packages and vehicle placards in accordance with ADR 2025.

Special Provisions
SP 538

Refer to ADR 2025 Chapter 3.3 for full text of each provision.

Check if UN 2448 qualifies for 1.1.3.6 exemption
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Other Flammable Solids near UN 2448 (Class 4.1)

UN 2304
NAPHTHALENE, MOLTEN
UN 2538
NITRONAPHTHALENE
UN 2555
NITROCELLULOSE WITH WATER (not l…
UN 2556
NITROCELLULOSE WITH ALCOHOL (not…
UN 2557
NITROCELLULOSE, with not more th…
All Class 4.1 UN numbers →
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📅Data: UNECE ADR 2025 (ECE/TRANS/352), via EU Directive 2008/68/EC. Last verified October 2026

ADR reference data only. Classification is the consignor's legal responsibility. Consult a DGSA for compliance decisions.

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