UN 1835Class 8 — Corrosive SubstancesPG IIVariant 1 of 2
TETRAMETHYLAMMONIUM HYDROXIDE AQUEOUS SOLUTION with more than 2.5 % but less than 25 % tetramethylammonium hydroxide
- Packing Group
- II
- Medium danger
- Classification Code
- CT1
- Transport Category
- 2
- For the 1,000-point rule (0 = highest restriction)
- Hazard ID No.
- 86
- Kemler code
- Limited Quantity
- 1 L
- Max per inner package for LQ relief
- Excepted Quantity
- E2
- EQ code for excepted quantity relief
Thresholds — why, not just the verdict
Transport Category
Category 2
×3 points per kg/L — up to 333 kg/L of this substance alone stays under the 1,000-point threshold
Per-substance max
333 kg/L
Per-substance maximum for 1.1.3.6 relief (1.1.3.6.3)
Limited Quantity
1 L
Max per inner packaging for LQ relief (Chapter 3.4)
Excepted Quantity
E2
Max 30 ml/g per inner, 500 ml/g per outer package (Chapter 3.5)
Special Provisions
SP 279, SP 408
May alter scope or limits — full text in ADR 2025 Chapter 3.3
Hazard Labels Required
Label 8Label 6.1
These labels must be displayed on packages and vehicle placards in accordance with ADR 2025.
Special Provisions
SP 279SP 408
Refer to ADR 2025 Chapter 3.3 for full text of each provision.