UN 3273

NITRILES, FLAMMABLE, TOXIC, N.O.S.

UN 3273 (variant 1 of 2, packing group I) — ADR 2025 Table A: class 3, classification code FT1, packing group I, labels 3 +6.1, special provisions 274, limited quantity 0, excepted quantity E0, packing instructions P001, transport category 1, tunnel restriction code (C/E), hazard identification number 336.

UN 3273 (variant 2 of 2, packing group II) — ADR 2025 Table A: class 3, classification code FT1, packing group II, labels 3 +6.1, special provisions 274, limited quantity 1 L, excepted quantity E2, packing instructions P001 IBC02, transport category 2, tunnel restriction code (D/E), hazard identification number 336.

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

Table A — ADR 2025 (ECE/TRANS/352), UN 3273 — variant 1 of 2, packing group I
(1) UN No.3273
(2) Name and descriptionNITRILES, FLAMMABLE, TOXIC, N.O.S.
(3a) Class3
(3b) Classification codeFT1
(4) Packing groupI
(5) Labels3 +6.1
(6) Special provisions274
(7a) Limited quantities0
(7b) Excepted quantitiesE0
(8) Packaging: packing instructionsP001
(9a) Packaging: special packing provisions—
(9b) Packaging: mixed packing provisionsMP7 MP17
(10) Portable tanks and bulk containers: instructionsT14
(11) Portable tanks and bulk containers: special provisionsTP2 TP27
(12) ADR tank: tank codeL10CH
(13) ADR tank: special provisionsTU14 TU15 TE21
(14) Vehicle for tank carriageFL
(15) Transport category (Tunnel restriction code)1 (C/E)
(16) Special provisions for carriage: packages—
(17) Special provisions for carriage: bulk—
(18) Special provisions for carriage: loading, unloading and handlingCV13 CV28
(19) Special provisions for carriage: operationS2 S22
(20) Hazard identification No.336
Table A — ADR 2025 (ECE/TRANS/352), UN 3273 — variant 2 of 2, packing group II
(1) UN No.3273
(2) Name and descriptionNITRILES, FLAMMABLE, TOXIC, N.O.S.
(3a) Class3
(3b) Classification codeFT1
(4) Packing groupII
(5) Labels3 +6.1
(6) Special provisions274
(7a) Limited quantities1 L
(7b) Excepted quantitiesE2
(8) Packaging: packing instructionsP001 IBC02
(9a) Packaging: special packing provisions—
(9b) Packaging: mixed packing provisionsMP19
(10) Portable tanks and bulk containers: instructionsT11
(11) Portable tanks and bulk containers: special provisionsTP2 TP27
(12) ADR tank: tank codeL4BH
(13) ADR tank: special provisionsTU15
(14) Vehicle for tank carriageFL
(15) Transport category (Tunnel restriction code)2 (D/E)
(16) Special provisions for carriage: packages—
(17) Special provisions for carriage: bulk—
(18) Special provisions for carriage: loading, unloading and handlingCV13 CV28
(19) Special provisions for carriage: operationS2 S22
(20) Hazard identification No.336

ADR 2027 (accepted) — no change for UN 3273

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 — variant 1 of 2, packing group I

Tunnels
Tunnel code (C/E): in tanks, Prohibited in C, D, E; in other carriage, Prohibited in E. Tanks: A, B. Packages: A, B, C, D. (ADR 8.6.4; from the ADR table itself)
Small-load exemption
Transport category 1: at most 20 per transport unit under 1.1.3.6, counted ×50 toward the 1,000-point limit (ADR 1.1.3.6.3; from the ADR table itself)
Labels
Labels: model 3 (Flammable liquids), model 6.1 (Toxic substances) (ADR 5.2.2.2.2, label model No. 3, 5.2.2.2.2, label model No. 6.1; paraphrase, not yet reviewed)
Packing
Packing instruction P001: General packing instruction for liquids: combination, single, composite packagings and pressure receptacles, with capacity/mass limits by packing group. Mixed packing provision MP7: Up to 5 litres per inner packaging may be mixed with same-class goods of other classification codes or with non-ADR goods. Mixed packing provision MP17: Up to 0.5 litre per inner and 1 litre per package may be mixed with other classes (not Class 7) that permit it, or with non-ADR goods. (ADR 4.1.4.1, P001, 4.1.10.4, MP7, 4.1.10.4, MP17; paraphrase, not yet reviewed)
Tanks
Portable tank instruction T14: Portable tank, Class 1 and 3–9: test 6 bar; shell 6 mm; relief See 6.7.2.8.3; bottom openings Not allowed. Portable tank provision TP2: Portable tank must not be filled beyond the degree of filling set by 4.2.1.9.3 (the 95-based formula). Portable tank provision TP27: A 4 bar minimum test pressure tank may be used if 4 bar or less is shown acceptable under 6.7.2.1. Tank code L10CH: ADR tank code for Classes 1 and 3–9: liquid tank, 10 bar, openings C, hermetically closed. — 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); C: filled and discharged from the top; below the liquid surface there are cleaning openings only; H: hermetically closed (see 1.2.1) Tank provision TU14: Protective caps on the closures must be locked during carriage. Tank provision TU15: Tank must not be used to carry foodstuffs, articles of consumption or animal feeds. Tank provision TE21: Closures must be protected by lockable caps. Vehicle for tank carriage: FL — Vehicle for flammable liquids (flash point ≤ 60 °C), flammable gases or UN 2015 > 60 % in tanks above set sizes. (ADR 4.2.5.2.6, portable tank instruction T14, 4.2.5.3, TP2, 4.2.5.3, TP27, 4.3.4.1.1, tank code L10CH, 4.3.5, TU14, 4.3.5, TU15, 6.8.4 (b), TE21, 9.1.1.2, FL vehicle; 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. Operation provision S2: Flammable liquids/gases: no ordinary portable lights in closed load compartments; FL heaters off during loading; earth FL vehicles before filling. Operation provision S22: Chapter 8.4 supervision applies above 5 000 kg in packages, or above 3 000 litres in tanks. (ADR 7.5.11, CV13, 7.5.11, CV28, 8.5, S2, 8.5, S22; 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 II

Tunnels
Tunnel code (D/E): in tanks, Prohibited in D, E (bulk or tanks); in other carriage, Prohibited in E. Bulk/tanks: A, B, C. Packages: A, B, C, D. (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 3 (Flammable liquids), model 6.1 (Toxic substances) (ADR 5.2.2.2.2, label model No. 3, 5.2.2.2.2, label model No. 6.1; paraphrase, not yet reviewed)
Packing
Packing instruction P001: General packing instruction for liquids: combination, single, composite packagings and pressure receptacles, with capacity/mass limits by packing group. Packing instruction IBC02: Liquids under IBC02 may use metal (31A/31B/31N), rigid plastics (31H1/31H2) or composite 31HZ1 IBCs, with B and BB limits per UN number. Mixed packing provision MP19: Up to 5 litres per inner packaging may be mixed with goods of other codes or classes that permit it, or with non-ADR goods. (ADR 4.1.4.1, P001, 4.1.4.2, IBC02, 4.1.10.4, MP19; paraphrase, not yet reviewed)
Tanks
Portable tank instruction T11: Portable tank, Class 1 and 3–9: test 6 bar; shell See 6.7.2.4.2; relief Normal; bottom openings See 6.7.2.6.3. Portable tank provision TP2: Portable tank must not be filled beyond the degree of filling set by 4.2.1.9.3 (the 95-based formula). Portable tank provision TP27: A 4 bar minimum test pressure tank may be used if 4 bar or less is shown acceptable under 6.7.2.1. Tank code L4BH: ADR tank code for Classes 1 and 3–9: liquid tank, 4 bar, openings B, hermetically closed. — L: tank for liquid-state substances (liquids, or solids handed over molten); 4: minimum calculation pressure of 4 bar (see 6.8.2.1.14); B: filling or discharge openings at the bottom, each with 3 closures; H: hermetically closed (see 1.2.1) Tank provision TU15: Tank must not be used to carry foodstuffs, articles of consumption or animal feeds. Vehicle for tank carriage: FL — Vehicle for flammable liquids (flash point ≤ 60 °C), flammable gases or UN 2015 > 60 % in tanks above set sizes. (ADR 4.2.5.2.6, portable tank instruction T11, 4.2.5.3, TP2, 4.2.5.3, TP27, 4.3.4.1.1, tank code L4BH, 4.3.5, TU15, 9.1.1.2, FL vehicle; 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. Operation provision S2: Flammable liquids/gases: no ordinary portable lights in closed load compartments; FL heaters off during loading; earth FL vehicles before filling. Operation provision S22: Chapter 8.4 supervision applies above 5 000 kg in packages, or above 3 000 litres in tanks. (ADR 7.5.11, CV13, 7.5.11, CV28, 8.5, S2, 8.5, S22; 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 3 — Flammable LiquidsPacking Group I2 variants
UN 3273 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 3273Class 3 — Flammable LiquidsPG IVariant 1 of 2
NITRILES, FLAMMABLE, TOXIC, N.O.S.
Packing Group
I
High danger
Classification Code
FT1
Tunnel Code
(C/E) meaning →
Code governing tunnel passage
Transport Category
1
For the 1,000-point rule (0 = highest restriction)
Hazard ID No.
336
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 1
×50 points per kg/L — up to 20 kg/L of this substance alone stays under the 1,000-point threshold
Per-substance max
20 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 3Label 6.1

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 3273Class 3 — Flammable LiquidsPG IIVariant 2 of 2
NITRILES, FLAMMABLE, TOXIC, N.O.S.
Packing Group
II
Medium danger
Classification Code
FT1
Tunnel Code
(D/E) meaning →
Code governing tunnel passage
Transport Category
2
For the 1,000-point rule (0 = highest restriction)
Hazard ID No.
336
Kemler code
Limited Quantity
1 L
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 L
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 274
May alter scope or limits — full text in ADR 2025 Chapter 3.3
Hazard Labels Required
Label 3Label 6.1

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 3273 qualifies for 1.1.3.6 exemption
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All Class 3 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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