UN 2817

AMMONIUM HYDROGENDIFLUORIDE SOLUTION

UN 2817 (variant 1 of 2, packing group II) — ADR 2025 Table A: class 8, classification code CT1, packing group II, labels 8 +6.1, special provisions —, limited quantity 1 L, excepted quantity E2, packing instructions P001 IBC02, transport category 2, tunnel restriction code (E), hazard identification number 86.

UN 2817 (variant 2 of 2, packing group III) — ADR 2025 Table A: class 8, classification code CT1, packing group III, labels 8 +6.1, special provisions —, limited quantity 5 L, excepted quantity E1, packing instructions P001 IBC03 R001, transport category 3, tunnel restriction code (E), hazard identification number 86.

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

Table A — ADR 2025 (ECE/TRANS/352), UN 2817 — variant 1 of 2, packing group II
(1) UN No.2817
(2) Name and descriptionAMMONIUM HYDROGENDIFLUORIDE SOLUTION
(3a) Class8
(3b) Classification codeCT1
(4) Packing groupII
(5) Labels8 +6.1
(6) Special provisions—
(7a) Limited quantities1 L
(7b) Excepted quantitiesE2
(8) Packaging: packing instructionsP001 IBC02
(9a) Packaging: special packing provisions—
(9b) Packaging: mixed packing provisionsMP15
(10) Portable tanks and bulk containers: instructionsT8
(11) Portable tanks and bulk containers: special provisionsTP2
(12) ADR tank: tank codeL4DH
(13) ADR tank: special provisionsTU14 TE21
(14) Vehicle for tank carriageAT
(15) Transport category (Tunnel restriction code)2 (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: operation—
(20) Hazard identification No.86
Table A — ADR 2025 (ECE/TRANS/352), UN 2817 — variant 2 of 2, packing group III
(1) UN No.2817
(2) Name and descriptionAMMONIUM HYDROGENDIFLUORIDE SOLUTION
(3a) Class8
(3b) Classification codeCT1
(4) Packing groupIII
(5) Labels8 +6.1
(6) Special provisions—
(7a) Limited quantities5 L
(7b) Excepted quantitiesE1
(8) Packaging: packing instructionsP001 IBC03 R001
(9a) Packaging: special packing provisions—
(9b) Packaging: mixed packing provisionsMP19
(10) Portable tanks and bulk containers: instructionsT4
(11) Portable tanks and bulk containers: special provisionsTP1
(12) ADR tank: tank codeL4DH
(13) ADR tank: special provisionsTU14 TE21
(14) Vehicle for tank carriageAT
(15) Transport category (Tunnel restriction code)3 (E)
(16) Special provisions for carriage: packagesV12
(17) Special provisions for carriage: bulk—
(18) Special provisions for carriage: loading, unloading and handlingCV13 CV28
(19) Special provisions for carriage: operation—
(20) Hazard identification No.86

ADR 2027 (accepted) — no change for UN 2817

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 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 8 (Corrosive substances), model 6.1 (Toxic substances) (ADR 5.2.2.2.2, label model No. 8, 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 MP15: Up to 3 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, MP15; paraphrase, not yet reviewed)
Tanks
Portable tank instruction T8: Portable tank, Class 1 and 3–9: test 4 bar; shell See 6.7.2.4.2; relief Normal; 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 L4DH: ADR tank code for Classes 1 and 3–9: liquid tank, 4 bar, openings D, 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); D: filled and discharged from the top; nothing opens below the liquid surface; H: hermetically closed (see 1.2.1) Tank provision TU14: Protective caps on the closures must be locked during carriage. 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 T8, 4.2.5.3, TP2, 4.3.4.1.1, tank code L4DH, 4.3.5, TU14, 6.8.4 (b), TE21, 9.1.1.2, AT 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. (ADR 7.5.11, CV13, 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.

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 8 (Corrosive substances), model 6.1 (Toxic substances) (ADR 5.2.2.2.2, label model No. 8, 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 IBC03: Liquids under IBC03 may use metal 31-series, rigid plastics 31H1/31H2 or a wider set of 31H composite IBCs. Packing instruction R001: R001 permits light gauge metal packagings 0A1 and 0A2 up to 40 l / 50 kg for packing groups II and III; packing group I is not allowed. 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, IBC03, 4.1.4.1, R001, 4.1.10.4, MP19; paraphrase, not yet reviewed)
Tanks
Portable tank instruction T4: Portable tank, Class 1 and 3–9: test 2.65 bar; shell See 6.7.2.4.2; relief Normal; bottom openings See 6.7.2.6.3. Portable tank provision TP1: Portable tank must not be filled beyond the degree of filling set by 4.2.1.9.2 (the 97-based formula). Tank code L4DH: ADR tank code for Classes 1 and 3–9: liquid tank, 4 bar, openings D, 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); D: filled and discharged from the top; nothing opens below the liquid surface; H: hermetically closed (see 1.2.1) Tank provision TU14: Protective caps on the closures must be locked during carriage. 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 T4, 4.2.5.3, TP1, 4.3.4.1.1, tank code L4DH, 4.3.5, TU14, 6.8.4 (b), TE21, 9.1.1.2, AT vehicle; paraphrase, not yet reviewed)
Carriage
Carriage provision V12: IBCs of type 31HZ2 (31HA2, 31HB2, 31HN2, 31HD2, 31HH2) must be carried in closed vehicles or closed containers. 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. (ADR 7.2.4, V12, 7.5.11, CV13, 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 8 — Corrosive SubstancesPacking Group II2 variants
UN 2817 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 2817Class 8 — Corrosive SubstancesPG IIVariant 1 of 2
AMMONIUM HYDROGENDIFLUORIDE SOLUTION
Packing Group
II
Medium danger
Classification Code
CT1
Tunnel Code
(E) meaning →
Code governing tunnel passage
Transport Category
2
For the 1,000-point rule (0 = highest restriction)
Hazard ID No.
86
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
Hazard Labels Required
Label 8Label 6.1

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

UN 2817Class 8 — Corrosive SubstancesPG IIIVariant 2 of 2
AMMONIUM HYDROGENDIFLUORIDE SOLUTION
Packing Group
III
Low danger
Classification Code
CT1
Tunnel Code
(E) meaning →
Code governing tunnel passage
Transport Category
3
For the 1,000-point rule (0 = highest restriction)
Hazard ID No.
86
Kemler code
Limited Quantity
5 L
Max per inner package for LQ relief
Excepted Quantity
E1
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
5 L
Max per inner packaging for LQ relief (Chapter 3.4)
Excepted Quantity
E1
Max 30 ml/g per inner, 1,000 ml/g per outer package (Chapter 3.5)
Tunnel Code
Governs which tunnel categories the load may pass
Hazard Labels Required
Label 8Label 6.1

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

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Other Corrosive Substances near UN 2817 (Class 8)

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Sodium aluminate, solid
UN 2815
N-AMINOETHYLPIPERAZINE
UN 2818
AMMONIUM POLYSULPHIDE SOLUTION
UN 2819
AMYL ACID PHOSPHATE
UN 2820
BUTYRIC ACID
All Class 8 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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