UN 2870

ALUMINIUM BOROHYDRIDE

UN 2870 (variant 1 of 2, packing group I) — ADR 2025 Table A: class 4.2, classification code SW1, packing group I, labels 4.2 +4.3, special provisions —, limited quantity 0, excepted quantity E0, packing instructions P400, transport category 0, tunnel restriction code (B/E), hazard identification number X333.

UN 2870 (variant 2 of 2) — ADR 2025 Table A: class 4.2, classification code SW2, packing group —, labels 4.2 +4.3, special provisions —, limited quantity 0, excepted quantity E0, packing instructions P002, transport category 0, tunnel restriction code (E), hazard identification number —.

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

Table A — ADR 2025 (ECE/TRANS/352), UN 2870 — variant 1 of 2, packing group I
(1) UN No.2870
(2) Name and descriptionALUMINIUM BOROHYDRIDE
(3a) Class4.2
(3b) Classification codeSW1
(4) Packing groupI
(5) Labels4.2 +4.3
(6) Special provisions—
(7a) Limited quantities0
(7b) Excepted quantitiesE0
(8) Packaging: packing instructionsP400
(9a) Packaging: special packing provisions—
(9b) Packaging: mixed packing provisionsMP2
(10) Portable tanks and bulk containers: instructionsT21
(11) Portable tanks and bulk containers: special provisionsTP7 TP33
(12) ADR tank: tank codeL21DH
(13) ADR tank: special provisionsTU14 TC1 TE21 TM1
(14) Vehicle for tank carriageAT
(15) Transport category (Tunnel restriction code)0 (B/E)
(16) Special provisions for carriage: packagesV1
(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.X333
Table A — ADR 2025 (ECE/TRANS/352), UN 2870 — variant 2 of 2
(1) UN No.2870
(2) Name and descriptionALUMINIUM BOROHYDRIDE IN DEVICES
(3a) Class4.2
(3b) Classification codeSW2
(4) Packing group—
(5) Labels4.2 +4.3
(6) Special provisions—
(7a) Limited quantities0
(7b) Excepted quantitiesE0
(8) Packaging: packing instructionsP002
(9a) Packaging: special packing provisionsPP13
(9b) Packaging: mixed packing provisionsMP2
(10) Portable tanks and bulk containers: instructions—
(11) Portable tanks and bulk containers: special provisions—
(12) ADR tank: tank code—
(13) ADR tank: special provisions—
(14) Vehicle for tank carriage—
(15) Transport category (Tunnel restriction code)0 (E)
(16) Special provisions for carriage: packagesV1
(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.—

ADR 2027 (accepted) — no change for UN 2870

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=2870&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 I

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 4.3 (Substances which emit flammable gases in contact with water) (ADR 5.2.2.2.2, label model No. 4.2, 5.2.2.2.2, label model No. 4.3; paraphrase, not yet reviewed)
Packing
Packing instruction P400: Steel pressure receptacles under inert gas, or hermetically sealed metal cans with small glass/metal inners in cushioned drums, boxes or jerricans. Mixed packing provision MP2: No mixed packing: the goods must be alone in their package. (ADR 4.1.4.1, P400, 4.1.10.4, MP2; 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 TP7: Air must be removed from the vapour space, by nitrogen or another method. Portable tank provision TP33: The assigned tank instruction covers granular/powdered solids and solids loaded hot but carried as a solid mass. Tank code L21DH: ADR tank code for Classes 1 and 3–9: liquid tank, 21 bar, openings D, hermetically closed. — L: tank for liquid-state substances (liquids, or solids handed over molten); 21: minimum calculation pressure of 21 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 TC1: The materials and construction requirements of 6.8.5 apply to these shells. Tank provision TE21: Closures must be protected by lockable caps. Tank provision TM1: Tanks must additionally be marked "Do not open during carriage. Liable to spontaneous combustion". 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, TP7, 4.2.5.3, TP33, 4.3.4.1.1, tank code L21DH, 4.3.5, TU14, 6.8.4 (a), TC1, 6.8.4 (b), TE21, 6.8.4 (e), TM1, 9.1.1.2, AT vehicle; paraphrase, not yet reviewed)
Carriage
Carriage provision V1: Packages must go on a closed or sheeted vehicle or in a closed or sheeted container; open vehicles and containers are not allowed. Operation provision S20: Chapter 8.4 supervision applies above 10 000 kg in packages, or above 3 000 litres in tanks. (ADR 7.2.4, V1, 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.

In plain words — variant 2 of 2

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 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 4.3 (Substances which emit flammable gases in contact with water) (ADR 5.2.2.2.2, label model No. 4.2, 5.2.2.2.2, label model No. 4.3; paraphrase, not yet reviewed)
Packing
Packing instruction P002: General packing instruction for solids: combination, single, composite packagings and pressure receptacles, with net mass limits by packing group. Special packing provision PP13: UN 2870 articles: only combination packagings meeting packing group I performance are allowed. Mixed packing provision MP2: No mixed packing: the goods must be alone in their package. (ADR 4.1.4.1, P002, 4.1.4.1, P002, PP13, 4.1.10.4, MP2; paraphrase, not yet reviewed)
Carriage
Carriage provision V1: Packages must go on a closed or sheeted vehicle or in a closed or sheeted container; open vehicles and containers are not allowed. Operation provision S20: Chapter 8.4 supervision applies above 10 000 kg in packages, or above 3 000 litres in tanks. (ADR 7.2.4, V1, 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 I2 variants
UN 2870 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 2870Class 4.2 — Flammable SolidsPG IVariant 1 of 2
ALUMINIUM BOROHYDRIDE
Packing Group
I
High danger
Classification Code
SW1
Tunnel Code
(B/E) meaning →
Code governing tunnel passage
Transport Category
0
For the 1,000-point rule (0 = highest restriction)
Hazard ID No.
X333
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 4.3

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

UN 2870Class 4.2 — Flammable SolidsVariant 2 of 2
ALUMINIUM BOROHYDRIDE IN DEVICES
Packing Group
N/A
Not applicable
Classification Code
SW2
Tunnel Code
(E) meaning →
Code governing tunnel passage
Transport Category
0
For the 1,000-point rule (0 = highest restriction)
Hazard ID No.
—
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 4.3

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

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Other Flammable Solids near UN 2870 (Class 4.2)

UN 2793
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UN 2845
PYROPHORIC LIQUID, ORGANIC, N.O.S.
UN 2846
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UN 2881
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UN 2940
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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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