UN 1040

ETHYLENE OXIDE

Class 2 — Gases2 variants
UN 1040 has 2 classification variants in ADR 2025 — different hazard divisions or descriptions for the same UN number. Each variant may have different transport requirements.
UN 1040Class 2 — GasesVariant 1 of 2
ETHYLENE OXIDE
Packing Group
N/A
Not applicable
Classification Code
2TF
Tunnel Code
(B/D)
Code governing tunnel passage
Transport Category
1
For the 1,000-point rule (0 = highest restriction)
Hazard ID No.
263
Kemler code
Limited Quantity
0
Max per inner package for LQ relief
Excepted Quantity
E0
EQ code for excepted quantity relief
Hazard Labels Required
Label 2.3Label 2.1

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

Special Provisions
SP 342

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

UN 1040Class 2 — GasesVariant 2 of 2
ETHYLENE OXIDE WITH NITROGEN up to a total pressure of 1 MPa (10 bar) at 50 °C
Packing Group
N/A
Not applicable
Classification Code
2TF
Tunnel Code
(B/D)
Code governing tunnel passage
Transport Category
1
For the 1,000-point rule (0 = highest restriction)
Hazard ID No.
263
Kemler code
Limited Quantity
0
Max per inner package for LQ relief
Excepted Quantity
E0
EQ code for excepted quantity relief
Hazard Labels Required
Label 2.3Label 2.1

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

Special Provisions
SP 342

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

Check if UN 1040 qualifies for 1.1.3.6 exemption
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Other Gases (Class 2)

UN 1001
ACETYLENE, DISSOLVED
UN 1002
AIR, COMPRESSED
UN 1003
AIR, REFRIGERATED LIQUID
UN 1005
AMMONIA, ANHYDROUS
UN 1006
ARGON, COMPRESSED
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📅Data: UNECE ADR 2025 (ECE/TRANS/352), via EU Directive 2008/68/EC. Last verified July 2026

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

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