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UN2813

WATER-REACTIVE SOLID, N.O.S.

Class 4.3 — Flammable SolidsPacking Group I3 variants
UN 2813 has 3 classification variants in ADR 2025 — different hazard divisions or descriptions for the same UN number. Each variant may have different transport requirements.
Variant 1 of 3

WATER-REACTIVE SOLID, N.O.S.

Hazard Class
4.3
Flammable Solids
Classification Code
W2
Packing Group
I
High danger
Hazard ID No.
X423
Kemler code
Transport Category
0
For 1,000-point rule
Tunnel Code
(B/E)
Tunnel restriction
Hazard Labels Required
Label 4.3

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.

Quantity Limits & Transport
Limited Quantity
0
Max per inner package for LQ relief
Excepted Quantity
E0
EQ code for excepted quantity relief
Transport Category
0
0=highest, 4=lowest restriction
Tunnel Restriction
(B/E)
Code governing tunnel passage
Variant 2 of 3

WATER-REACTIVE SOLID, N.O.S.

Hazard Class
4.3
Flammable Solids
Classification Code
W2
Packing Group
II
Medium danger
Hazard ID No.
423
Kemler code
Transport Category
0
For 1,000-point rule
Tunnel Code
(D/E)
Tunnel restriction
Hazard Labels Required
Label 4.3

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.

Quantity Limits & Transport
Limited Quantity
500 g
Max per inner package for LQ relief
Excepted Quantity
E2
EQ code for excepted quantity relief
Transport Category
0
0=highest, 4=lowest restriction
Tunnel Restriction
(D/E)
Code governing tunnel passage
Variant 3 of 3

WATER-REACTIVE SOLID, N.O.S.

Hazard Class
4.3
Flammable Solids
Classification Code
W2
Packing Group
III
Low danger
Hazard ID No.
423
Kemler code
Transport Category
0
For 1,000-point rule
Tunnel Code
(E)
Tunnel restriction
Hazard Labels Required
Label 4.3

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.

Quantity Limits & Transport
Limited Quantity
1 kg
Max per inner package for LQ relief
Excepted Quantity
E1
EQ code for excepted quantity relief
Transport Category
0
0=highest, 4=lowest restriction
Tunnel Restriction
(E)
Code governing tunnel passage
Check if UN 2813 qualifies for 1.1.3.6 exemption
Calculate small load points and check exemption thresholds
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Other Flammable Solids (Class 4)

UN 1183
ETHYLDICHLOROSILANE
UN 1242
METHYLDICHLOROSILANE
UN 1295
TRICHLOROSILANE
UN 1309
ALUMINIUM POWDER, COATED
UN 1310
AMMONIUM PICRATE, WETTED with no…
Use this data programmatically
GET /api/adr?un=2813
View API Docs →
📅Data: UNECE ADR 2025, licensed from Labeline.com. Last verified May 2026

ADR reference data only. Classification is the consignor's legal responsibility. Consult a DGSA for compliance decisions.

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