UN 1458 has 2 classification variants in ADR 2025 — different hazard divisions or descriptions for the same UN number. Each variant may have different transport requirements.
Variant 1 of 2
CHLORATE AND BORATE MIXTURE
Hazard Class
5.1
Oxidising Substances & Organic Peroxides
Classification Code
O2
Packing Group
II
Medium danger
Hazard ID No.
50
Kemler code
Transport Category
2
For 1,000-point rule
Tunnel Code
(E)
Tunnel restriction
Variant 2 of 2
CHLORATE AND BORATE MIXTURE
Hazard Class
5.1
Oxidising Substances & Organic Peroxides
Classification Code
O2
Packing Group
III
Low danger
Hazard ID No.
50
Kemler code
Transport Category
3
For 1,000-point rule
Tunnel Code
(E)
Tunnel restriction
Check if UN 1458 qualifies for 1.1.3.6 exemption
Calculate small load points and check exemption thresholds
Other Oxidising Substances & Organic Peroxides (Class 5)
Use this data programmatically
GET /api/adr?un=1458📅Data: UNECE ADR 2025, licensed from Labeline.com. Last verified May 2026
ADR reference data only. Classification is the consignor's legal responsibility. Consult a DGSA for compliance decisions.
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