UN 1588

CYANIDES, INORGANIC, SOLID, N.O.S.

Class 6.1Toxic & Infectious SubstancesPacking Group I3 variants
UN 1588 has 3 classification variants in ADR 2025 — different hazard divisions or descriptions for the same UN number. Each variant may have different transport requirements.
UN 1588Class 6.1 — Toxic & Infectious SubstancesPG IVariant 1 of 3
CYANIDES, INORGANIC, SOLID, N.O.S.
Packing Group
I
High danger
Classification Code
T5
Tunnel Code
(C/E) meaning →
Code governing tunnel passage
Transport Category
1
For the 1,000-point rule (0 = highest restriction)
Hazard ID No.
66
Kemler code
Limited Quantity
0
Max per inner package for LQ relief
Excepted Quantity
E5
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
E5
Max 1 ml/g per inner, 300 ml/g per outer package (Chapter 3.5)
Tunnel Code
Governs which tunnel categories the load may pass
Special Provisions
SP 47, SP 274
May alter scope or limits — full text in ADR 2025 Chapter 3.3
Hazard Labels Required
Label 6.1

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

Special Provisions
SP 47SP 274

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

UN 1588Class 6.1 — Toxic & Infectious SubstancesPG IIVariant 2 of 3
CYANIDES, INORGANIC, SOLID, N.O.S.
Packing Group
II
Medium danger
Classification Code
T5
Tunnel Code
(D/E) meaning →
Code governing tunnel passage
Transport Category
2
For the 1,000-point rule (0 = highest restriction)
Hazard ID No.
60
Kemler code
Limited Quantity
500 g
Max per inner package for LQ relief
Excepted Quantity
E4
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
500 g
Max per inner packaging for LQ relief (Chapter 3.4)
Excepted Quantity
E4
Max 1 ml/g per inner, 500 ml/g per outer package (Chapter 3.5)
Tunnel Code
Governs which tunnel categories the load may pass
Special Provisions
SP 47, SP 274
May alter scope or limits — full text in ADR 2025 Chapter 3.3
Hazard Labels Required
Label 6.1

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

Special Provisions
SP 47SP 274

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

UN 1588Class 6.1 — Toxic & Infectious SubstancesPG IIIVariant 3 of 3
CYANIDES, INORGANIC, SOLID, N.O.S.
Packing Group
III
Low danger
Classification Code
T5
Tunnel Code
(E) meaning →
Code governing tunnel passage
Transport Category
2
For the 1,000-point rule (0 = highest restriction)
Hazard ID No.
60
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 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
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)
Tunnel Code
Governs which tunnel categories the load may pass
Special Provisions
SP 47, SP 274
May alter scope or limits — full text in ADR 2025 Chapter 3.3
Hazard Labels Required
Label 6.1

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

Special Provisions
SP 47SP 274

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

Check if UN 1588 qualifies for 1.1.3.6 exemption
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📅Data: UNECE ADR 2025 (ECE/TRANS/352), via EU Directive 2008/68/EC. Last verified August 2026

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

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