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UN1421

ALKALI METAL ALLOY, LIQUID, N.O.S.

Class 4.3Flammable SolidsPacking Group I
Hazard Class
4.3
Flammable Solids
Classification Code
W1
Packing Group
I
High danger
Hazard ID No.
X323
Kemler code
Transport Category
1
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 182

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
1
0=highest, 4=lowest restriction
Tunnel Restriction
(B/E)
Code governing tunnel passage
Check if UN 1421 qualifies for 1.1.3.6 exemption
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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…
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📅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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ADR 1.1.3.6 Exemption Calculator LQ/EQ Checker ADR Dangerous Goods Lookup

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