UN 1994

IRON PENTACARBONYL

UN 1994 — ADR 2025 Table A: class 6.1, classification code TF1, packing group I, labels 6.1 +3, special provisions 354, limited quantity 0, excepted quantity E0, packing instructions P601, transport category 1, tunnel restriction code (C/D), hazard identification number 663.

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

Table A — ADR 2025 (ECE/TRANS/352), UN 1994
(1) UN No.1994
(2) Name and descriptionIRON PENTACARBONYL
(3a) Class6.1
(3b) Classification codeTF1
(4) Packing groupI
(5) Labels6.1 +3
(6) Special provisions354
(7a) Limited quantities0
(7b) Excepted quantitiesE0
(8) Packaging: packing instructionsP601
(9a) Packaging: special packing provisions—
(9b) Packaging: mixed packing provisionsMP2
(10) Portable tanks and bulk containers: instructionsT22
(11) Portable tanks and bulk containers: special provisionsTP2
(12) ADR tank: tank codeL15CH
(13) ADR tank: special provisionsTU14 TU15 TU31 TE19 TE21 TM3
(14) Vehicle for tank carriageFL
(15) Transport category (Tunnel restriction code)1 (C/D)
(16) Special provisions for carriage: packages—
(17) Special provisions for carriage: bulk—
(18) Special provisions for carriage: loading, unloading and handlingCV1 CV13 CV28
(19) Special provisions for carriage: operationS2 S9 S14
(20) Hazard identification No.663

ADR 2027 (accepted) — no change for UN 1994

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=1994&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 (C/D): in tanks, Prohibited in C, D, E; in other carriage, Prohibited in D, E. Tanks: A, B. Packages: A, B, C. (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 6.1 (Toxic substances), model 3 (Flammable liquids) (ADR 5.2.2.2.2, label model No. 6.1, 5.2.2.2.2, label model No. 3; paraphrase, not yet reviewed)
Packing
Packing instruction P601: Hermetically sealed packagings for highly toxic liquids: canned glass inners (15 kg gross), 5 l inners (75 kg), drum-in-drum, or pressure receptacles. Mixed packing provision MP2: No mixed packing: the goods must be alone in their package. (ADR 4.1.4.1, P601, 4.1.10.4, MP2; paraphrase, not yet reviewed)
Tanks
Portable tank instruction T22: Portable tank, Class 1 and 3–9: test 10 bar; shell 10 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). Tank code L15CH: ADR tank code for Classes 1 and 3–9: liquid tank, 15 bar, openings C, hermetically closed. — L: tank for liquid-state substances (liquids, or solids handed over molten); 15: minimum calculation pressure of 15 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 TU31: Tanks may be filled to no more than 1 kg per litre of capacity. Tank provision TE19: Top fittings recessed, valved or shielded against overturning; bottom fittings recessed 200 mm or rail-protected; rear fittings behind the 9.7.6 bumper. Tank provision TE21: Closures must be protected by lockable caps. Tank provision TM3: Plate must also give the proper shipping name and, in kg, the highest load mass permitted for this substance. 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 T22, 4.2.5.3, TP2, 4.3.4.1.1, tank code L15CH, 4.3.5, TU14, 4.3.5, TU15, 4.3.5, TU31, 6.8.4 (b), TE19, 6.8.4 (b), TE21, 6.8.4 (e), TM3, 9.1.1.2, FL vehicle; paraphrase, not yet reviewed)
Carriage
Loading provision CV1: Public-place loading/unloading: special permission needed inside built-up areas, advance notice to the authorities outside them. 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 S9: Any quantity: avoid service stops near inhabited or busy places; longer stops there need authority consent. Operation provision S14: Chapter 8.4 vehicle supervision applies for any amount of these substances. (ADR 7.5.11, CV1, 7.5.11, CV13, 7.5.11, CV28, 8.5, S2, 8.5, S9, 8.5, S14; 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 6.1 — Toxic & Infectious SubstancesPacking Group I
UN 1994Class 6.1 — Toxic & Infectious SubstancesPG I
Packing Group
I
High danger
Classification Code
TF1
Tunnel Code
(C/D) meaning →
Code governing tunnel passage
Transport Category
1
For the 1,000-point rule (0 = highest restriction)
Hazard ID No.
663
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 354
May alter scope or limits — full text in ADR 2025 Chapter 3.3
Hazard Labels Required
Label 6.1Label 3

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

Special Provisions
SP 354

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

Check if UN 1994 qualifies for 1.1.3.6 exemption
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Other Toxic & Infectious Substances near UN 1994 (Class 6.1)

UN 2016
AMMUNITION, TOXIC, NON-EXPLOSIVE…
UN 2017
AMMUNITION, TEAR-PRODUCING, NON-…
UN 2018
CHLOROANILINES, SOLID
UN 2019
CHLOROANILINES, LIQUID
UN 2020
CHLOROPHENOLS, SOLID
All Class 6.1 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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