UN 3176 (variant 1 of 2, packing group II) — ADR 2025 Table A: class 4.1, classification code F2, packing group II, labels 4.1, special provisions 274, limited quantity 0, excepted quantity E0, packing instructions —, transport category 2, tunnel restriction code (E), hazard identification number 44.
UN 3176 (variant 2 of 2, packing group III) — ADR 2025 Table A: class 4.1, classification code F2, packing group III, labels 4.1, special provisions 274, 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 3176 — variant 1 of 2, packing group II| (1) UN No. | 3176 |
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| (2) Name and description | FLAMMABLE SOLID, ORGANIC, MOLTEN, N.O.S. |
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| (3a) Class | 4.1 |
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| (3b) Classification code | F2 |
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| (4) Packing group | II |
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| (5) Labels | 4.1 |
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| (6) Special provisions | 274 |
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| (7a) Limited quantities | 0 |
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| (7b) Excepted quantities | E0 |
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| (8) Packaging: packing instructions | — |
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| (9a) Packaging: special packing provisions | — |
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| (9b) Packaging: mixed packing provisions | — |
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| (10) Portable tanks and bulk containers: instructions | T3 |
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| (11) Portable tanks and bulk containers: special provisions | TP3 TP26 |
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| (12) ADR tank: tank code | LGBV |
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| (13) ADR tank: special provisions | TU27 TE4 TE6 |
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| (14) Vehicle for tank carriage | AT |
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| (15) Transport category (Tunnel restriction code) | 2 (E) |
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| (16) Special provisions for carriage: packages | — |
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| (17) Special provisions for carriage: bulk | — |
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| (18) Special provisions for carriage: loading, unloading and handling | — |
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| (19) Special provisions for carriage: operation | — |
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| (20) Hazard identification No. | 44 |
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Table A — ADR 2025 (ECE/TRANS/352), UN 3176 — variant 2 of 2, packing group III| (1) UN No. | 3176 |
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| (2) Name and description | FLAMMABLE SOLID, ORGANIC, MOLTEN, N.O.S. |
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| (3a) Class | 4.1 |
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| (3b) Classification code | F2 |
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| (4) Packing group | III |
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| (5) Labels | 4.1 |
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| (6) Special provisions | 274 |
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| (7a) Limited quantities | 0 |
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| (7b) Excepted quantities | E0 |
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| (8) Packaging: packing instructions | — |
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| (9a) Packaging: special packing provisions | — |
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| (9b) Packaging: mixed packing provisions | — |
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| (10) Portable tanks and bulk containers: instructions | T1 |
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| (11) Portable tanks and bulk containers: special provisions | TP3 TP26 |
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| (12) ADR tank: tank code | LGBV |
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| (13) ADR tank: special provisions | TU27 TE4 TE6 |
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| (14) Vehicle for tank carriage | AT |
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| (15) Transport category (Tunnel restriction code) | 3 (E) |
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| (16) Special provisions for carriage: packages | — |
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| (17) Special provisions for carriage: bulk | — |
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| (18) Special provisions for carriage: loading, unloading and handling | — |
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| (19) Special provisions for carriage: operation | — |
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| (20) Hazard identification No. | 44 |
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ADR 2027 (accepted) — no change for UN 3176
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=3176&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 — variant 1 of 2, packing group II
- 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 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 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 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 TP26: When carried heated, the heating device goes outside the shell (for UN 3176 only if it reacts dangerously with water). Tank code LGBV: ADR tank code for Classes 1 and 3–9: liquid tank, G (general minimum), openings B, valves/devices V. — 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 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 T3, 4.2.5.3, TP3, 4.2.5.3, TP26, 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.
In plain words — variant 2 of 2, packing group III
- 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. 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 LGBV: ADR tank code for Classes 1 and 3–9: liquid tank, G (general minimum), openings B, valves/devices V. — 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 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, 4.2.5.3, TP26, 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 II2 variants
UN 3176 has 2 classification variants in ADR 2025 — different hazard divisions or descriptions for the same UN number. Each variant may have different transport requirements.
UN 3176Class 4.1 — Flammable SolidsPG IIVariant 1 of 2
FLAMMABLE SOLID, ORGANIC, MOLTEN, N.O.S.
- Packing Group
- II
- Medium danger
- Classification Code
- F2
- Tunnel Code
- (E) meaning →
- Code governing tunnel passage
- Transport Category
- 2
- 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 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
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 274
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 274
Refer to ADR 2025 Chapter 3.3 for full text of each provision.
UN 3176Class 4.1 — Flammable SolidsPG IIIVariant 2 of 2
FLAMMABLE SOLID, ORGANIC, MOLTEN, N.O.S.
- Packing Group
- III
- Low danger
- Classification Code
- F2
- 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 274
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 274
Refer to ADR 2025 Chapter 3.3 for full text of each provision.
Check if UN 3176 qualifies for 1.1.3.6 exemption
Calculate small load points and check exemption thresholds
📅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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