HazMat Tool — substance information
Self-heating solid, oxidizing, n.o.s.
HMT 15 June 2026- UN / ID
- UN 3127
- Hazard class
- 4.2
- Packing group
- —
- ERG guide
- ERG 135
- Special provisions
- —
- Source
- 49 CFR §172 (15 June 2026)
Self-heating solid, oxidizing, n.o.s.
| Emergency Response Guide No. 135 |
Hazardous Materials Table
Source: 49 CFR §172 (15 June 2026)(3) Hazard Class4.2Spontaneously combustible materials |
(4) Identification number |
(5) Packing Group |
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(6) Labels |
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(1) Symbols |
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(8) Packing Authorizations (§173.***)
|
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| (8A) Exceptions | None | |
|---|---|---|
| (8B) Non-bulk | 214 | see 49 CFR §173.214 |
| (8C) Bulk | 214 | see 49 CFR §173.214 |
(9) Quantity Limits 
| (9A) Passenger aircraft/rail | Forbidden |
|---|---|
| (9B) Cargo aircraft only | Forbidden |
(10) Vessel stowage
| (10A) Location | |
|---|---|
| (10B) Other | n/a |
Segregation chart for load, transport, and storage
This chart shows whether loading, transport, or storage with other hazard classes is permitted, prohibited, or restricted. Based on 49 CFR §177.848.
| Hazard class | 8 | 7 | 6.1 | 5.2 | 5.1 | 4.3 | 4.2 | 4.1 | 3 | 2.3B | 2.3A | 2.2 | 2.1 | 1.6 | 1.5 | 1.4 | 1.3 | 1.1/1.2 |
| 1.1/1.2 |  | | | | | | | | | | | | |  | | | | |
| 1.3 | |  | | | | | | | | | | | | | | | | |
| 1.4 | | | | | | | | | | | | | | | | | ||
| 1.5 | | | | | | | | | | | | | | | | |||
| 1.6 | | | | | | | | | | | | | | | ||||
| 2.1 | | | | | | | | | | | | | | |||||
| 2.2 | | | | | | | | | | | | | ||||||
| 2.3A | | | | | | | | | | | | |||||||
| 2.3B | | | | | | | | | | | ||||||||
| 3 | | | | | | | | | | |||||||||
| 4.1 | | | | | | | | | ||||||||||
| 4.2 | | | | | | | | |||||||||||
| 4.3 | | | | | | | ||||||||||||
| 5.1 | | | | | | |||||||||||||
| 5.2 | | | | | ||||||||||||||
| 6.1 | | | | |||||||||||||||
| 7 | | | ||||||||||||||||
| 8 | |
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Must not be loaded, transported, or stored together in the same vehicle or facility. |
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May be loaded, transported, or stored together. |
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May be loaded, transported, or stored together only with restrictions. |