UN 2447

PHOSPHORUS, WHITE, MOLTEN

UN 2447 — ADR 2025 Table A: class 4.2, classification code ST3, packing group I, labels 4.2 +6.1, special provisions —, limited quantity 0, excepted quantity E0, packing instructions —, transport category 0, tunnel restriction code (B/E), hazard identification number 446.

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

Table A — ADR 2025 (ECE/TRANS/352), UN 2447
(1) UN No.2447
(2) Name and descriptionPHOSPHORUS, WHITE, MOLTEN
(3a) Class4.2
(3b) Classification codeST3
(4) Packing groupI
(5) Labels4.2 +6.1
(6) Special provisions—
(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: instructionsT21
(11) Portable tanks and bulk containers: special provisionsTP3 TP7 TP26
(12) ADR tank: tank codeL10DH(+)
(13) ADR tank: special provisionsTU14 TU16 TU21 TE3 TE21
(14) Vehicle for tank carriageAT
(15) Transport category (Tunnel restriction code)0 (B/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: operationS20
(20) Hazard identification No.446

ADR 2027 (accepted) — no change for UN 2447

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 (B/E): in tanks, Prohibited in B, C, D, E; in other carriage, Prohibited in E. Tanks: A only. Packages: A, B, C, D. (ADR 8.6.4; from the ADR table itself)
Small-load exemption
Transport category 0: no 1.1.3.6 exemption applies (ADR 1.1.3.6.3; from the ADR table itself)
Labels
Labels: model 4.2 (Substances liable to spontaneous combustion), model 6.1 (Toxic substances) (ADR 5.2.2.2.2, label model No. 4.2, 5.2.2.2.2, label model No. 6.1; paraphrase, not yet reviewed)
Tanks
Portable tank instruction T21: Portable tank, Class 1 and 3–9: test 10 bar; shell 10 mm; relief Normal; bottom openings Not allowed. 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. Portable tank provision TP7: Air must be removed from the vapour space, by nitrogen or another method. Portable tank provision TP26: When carried heated, the heating device goes outside the shell (for UN 3176 only if it reacts dangerously with water). Tank code L10DH(+): ADR tank code for Classes 1 and 3–9: liquid tank, 10 bar, openings D, hermetically closed, suffix (+). — L: tank for liquid-state substances (liquids, or solids handed over molten); 10: minimum calculation pressure of 10 bar (see 6.8.2.1.14); D: filled and discharged from the top; nothing opens below the liquid surface; H: hermetically closed (see 1.2.1); (+): 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 TU14: Protective caps on the closures must be locked during carriage. Tank provision TU16: Uncleaned empty tanks must be handed over filled with a protective agent: nitrogen, water and nitrogen, or water at 96–98 %. Tank provision TU21: Substance must be protected by nitrogen, water and nitrogen, or a water layer of at least 12 cm, with filling limits of 96 % or 98 % at 60 °C. Tank provision TE3: Phosphorus tanks: external heating only, top-entry piping, lockable caps on openings and a level gauge for phosphorus and water. Tank provision TE21: Closures must be protected by lockable caps. 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 T21, 4.2.5.3, TP3, 4.2.5.3, TP7, 4.2.5.3, TP26, 4.3.4.1.1, tank code L10DH(+), 4.3.5, TU14, 4.3.5, TU16, 4.3.5, TU21, 6.8.4 (b), TE3, 6.8.4 (b), TE21, 9.1.1.2, AT vehicle; paraphrase, not yet reviewed)
Carriage
Operation provision S20: Chapter 8.4 supervision applies above 10 000 kg in packages, or above 3 000 litres in tanks. (ADR 8.5, S20; 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 4.2 — Flammable SolidsPacking Group I
UN 2447Class 4.2 — Flammable SolidsPG I
Packing Group
I
High danger
Classification Code
ST3
Tunnel Code
(B/E) meaning →
Code governing tunnel passage
Transport Category
0
For the 1,000-point rule (0 = highest restriction)
Hazard ID No.
446
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 0
Never exempt — any quantity requires full ADR compliance
Per-substance max
0 kg/L
Per-substance maximum (1.1.3.6.3) — Category 0 is never exempt
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
Hazard Labels Required
Label 4.2Label 6.1

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

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All Class 4.2 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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