UN 2337Class 6.1 — Toxic & Infectious SubstancesPG I
- Packing Group
- I
- High danger
- Classification Code
- TF1
- Transport Category
- 1
- For the 1,000-point rule (0 = highest restriction)
- Hazard ID No.
- 663
- 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 1
×50 points per kg/L — up to 20 kg/L of this substance alone stays under the 1,000-point threshold
Per-substance max
20 kg/L
Per-substance maximum for 1.1.3.6 relief (1.1.3.6.3)
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)
Special Provisions
SP 354
May alter scope or limits — full text in ADR 2025 Chapter 3.3
Hazard Labels Required
Label 6.1Label 3
These labels must be displayed on packages and vehicle placards in accordance with ADR 2025.
Special Provisions
SP 354
Refer to ADR 2025 Chapter 3.3 for full text of each provision.