UN 3170

ALUMINIUM SMELTING BY-PRODUCTS or ALUMINIUM REMELTING BY-PRODUCTS

Class 4.3 — Flammable SolidsPacking Group II2 variants
UN 3170 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 3170Class 4.3 — Flammable SolidsPG IIVariant 1 of 2
ALUMINIUM SMELTING BY-PRODUCTS or ALUMINIUM REMELTING BY-PRODUCTS
Packing Group
II
Medium danger
Classification Code
W2
Tunnel Code
(D/E)
Code governing tunnel passage
Transport Category
2
For the 1,000-point rule (0 = highest restriction)
Hazard ID No.
423
Kemler code
Limited Quantity
500 g
Max per inner package for LQ relief
Excepted Quantity
E2
EQ code for excepted quantity relief
Hazard Labels Required
Label 4.3

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

Special Provisions
SP 244

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

UN 3170Class 4.3 — Flammable SolidsPG IIIVariant 2 of 2
ALUMINIUM SMELTING BY-PRODUCTS or ALUMINIUM REMELTING BY-PRODUCTS
Packing Group
III
Low danger
Classification Code
W2
Tunnel Code
(E)
Code governing tunnel passage
Transport Category
3
For the 1,000-point rule (0 = highest restriction)
Hazard ID No.
423
Kemler code
Limited Quantity
1 kg
Max per inner package for LQ relief
Excepted Quantity
E1
EQ code for excepted quantity relief
Hazard Labels Required
Label 4.3

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

Special Provisions
SP 244

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

Check if UN 3170 qualifies for 1.1.3.6 exemption
Calculate small load points and check exemption thresholds
Open calculator →

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=3170
View API Docs →
📅Data: UNECE ADR 2025 (ECE/TRANS/352), via EU Directive 2008/68/EC. Last verified July 2026

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

Stay updated
ADR 2027 changes, new tools, and freight industry updates. No spam, unsubscribe anytime.
Related Tools
ADR 1.1.3.6 Exemption Calculator →LQ/EQ Checker →ADR Dangerous Goods Lookup →

Found an error? Let us know → contact@freightutils.com

← UN3169↑ Back to searchUN3171 →