UN 2623Class 4.1 — Flammable SolidsPG III
- Packing Group
- III
- Low danger
- Classification Code
- F1
- Transport Category
- 4
- For the 1,000-point rule (0 = highest restriction)
- Hazard ID No.
- —
- Kemler code
- Limited Quantity
- 5 kg
- 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 4
0 points per kg/L — unlimited under 1.1.3.6
Per-substance max
Unlimited
Per-substance maximum (1.1.3.6.3) — no cap for Category 4
Limited Quantity
5 kg
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)
Hazard Labels Required
Label 4.1
These labels must be displayed on packages and vehicle placards in accordance with ADR 2025.