UN 1463

CHROMIUM TRIOXIDE, ANHYDROUS

UN 1463 — ADR 2025 Table A: class 5.1, classification code OTC, packing group II, labels 5.1 +6.1 +8, special provisions 510, limited quantity 1 kg, excepted quantity E2, packing instructions P002 IBC08, transport category 2, tunnel restriction code (E), hazard identification number 568.

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

Table A — ADR 2025 (ECE/TRANS/352), UN 1463
(1) UN No.1463
(2) Name and descriptionCHROMIUM TRIOXIDE, ANHYDROUS
(3a) Class5.1
(3b) Classification codeOTC
(4) Packing groupII
(5) Labels5.1 +6.1 +8
(6) Special provisions510
(7a) Limited quantities1 kg
(7b) Excepted quantitiesE2
(8) Packaging: packing instructionsP002 IBC08
(9a) Packaging: special packing provisionsB4
(9b) Packaging: mixed packing provisionsMP2
(10) Portable tanks and bulk containers: instructionsT3
(11) Portable tanks and bulk containers: special provisionsTP33
(12) ADR tank: tank codeSGAN
(13) ADR tank: special provisionsTU3
(14) Vehicle for tank carriageAT
(15) Transport category (Tunnel restriction code)2 (E)
(16) Special provisions for carriage: packagesV11
(17) Special provisions for carriage: bulk—
(18) Special provisions for carriage: loading, unloading and handlingCV24 CV28
(19) Special provisions for carriage: operation—
(20) Hazard identification No.568

ADR 2027 (accepted) — no change for UN 1463

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 2: at most 333 per transport unit under 1.1.3.6, counted ×3 toward the 1,000-point limit (ADR 1.1.3.6.3; from the ADR table itself)
Labels
Labels: model 5.1 (Oxidizing substances), model 6.1 (Toxic substances), model 8 (Corrosive substances) (ADR 5.2.2.2.2, label model No. 5.1, 5.2.2.2.2, label model No. 6.1, 5.2.2.2.2, label model No. 8; paraphrase, not yet reviewed)
Packing
Packing instruction P002: General packing instruction for solids: combination, single, composite packagings and pressure receptacles, with net mass limits by packing group. Packing instruction IBC08: IBC08 is the widest solids IBC instruction: metal, rigid plastics, composite, fibreboard 11G, wooden and flexible 13-series IBCs. Special packing provision B4: Flexible, fibreboard and wooden IBCs must be sift-proof and water-resistant, or be lined with a liner that is. Mixed packing provision MP2: No mixed packing: the goods must be alone in their package. (ADR 4.1.4.1, P002, 4.1.4.2, IBC08, 4.1.4.2, IBC08, B4, 4.1.10.4, MP2; paraphrase, not yet reviewed)
Tanks
Portable tank instruction T3: Portable tank, Class 1 and 3–9: test 2.65 bar; shell See 6.7.2.4.2; relief Normal; bottom openings See 6.7.2.6.2. Portable tank provision TP33: The assigned tank instruction covers granular/powdered solids and solids loaded hot but carried as a solid mass. Tank code SGAN: ADR tank code for Classes 1 and 3–9: solid tank, G (general minimum), openings A, valves/devices N. — S: tank for solid-state substances (powdery or granular); G: minimum calculation pressure under the general requirements of 6.8.2.1.14; A: filling or discharge openings at the bottom, each with 2 closures; N: has no 6.8.2.2.6 breather device and is not hermetically closed Tank provision TU3: Shell interior and every part touching the substance kept clean; no lubricant that could react dangerously with it on pumps or valves. 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 T3, 4.2.5.3, TP33, 4.3.4.1.1, tank code SGAN, 4.3.5, TU3, 9.1.1.2, AT vehicle; paraphrase, not yet reviewed)
Carriage
Carriage provision V11: IBCs other than metal or rigid plastics IBCs must be carried in closed or sheeted vehicles or containers. Loading provision CV24: Clean the vehicle or container of combustible debris before loading; no readily flammable stowage material. Loading provision CV28: Pointer: the provisions of 7.5.4 apply. (ADR 7.2.4, V11, 7.5.11, CV24, 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 5.1 — Oxidising Substances & Organic PeroxidesPacking Group II
UN 1463Class 5.1 — Oxidising Substances & Organic PeroxidesPG II
Packing Group
II
Medium danger
Classification Code
OTC
Tunnel Code
(E) meaning →
Code governing tunnel passage
Transport Category
2
For the 1,000-point rule (0 = highest restriction)
Hazard ID No.
568
Kemler code
Limited Quantity
1 kg
Max per inner package for LQ relief
Excepted Quantity
E2
EQ code for excepted quantity relief
Thresholds — why, not just the verdict
Transport Category
Category 2
×3 points per kg/L — up to 333 kg/L of this substance alone stays under the 1,000-point threshold
Per-substance max
333 kg/L
Per-substance maximum for 1.1.3.6 relief (1.1.3.6.3)
Limited Quantity
1 kg
Max per inner packaging for LQ relief (Chapter 3.4)
Excepted Quantity
E2
Max 30 ml/g per inner, 500 ml/g per outer package (Chapter 3.5)
Tunnel Code
Governs which tunnel categories the load may pass
Special Provisions
SP 510
May alter scope or limits — full text in ADR 2025 Chapter 3.3
Hazard Labels Required
Label 5.1Label 6.1Label 8

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

Special Provisions
SP 510

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

Check if UN 1463 qualifies for 1.1.3.6 exemption
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Other Oxidising Substances & Organic Peroxides near UN 1463 (Class 5.1)

UN 1459
CHLORATE AND MAGNESIUM CHLORIDE …
UN 1461
CHLORATES, INORGANIC, N.O.S.
UN 1462
CHLORITES, INORGANIC, N.O.S.
UN 1465
DIDYMIUM NITRATE
UN 1466
FERRIC NITRATE
All Class 5.1 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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