Caustic alkali liquids, n.o.s.
HMT 15 June 2026Caustic alkali liquids, n.o.s.
Caustic most commonly refers to: Causticity, the property of being able to corrode organic tissue Sodium hydroxide, sometimes called caustic soda Potassium hydroxide, sometimes called caustic potash Calcium oxide, sometimes called caustic lime Caustic may also refer to: Caustic (band), an American industrial/powernoise band Caustic (mathematics), the envelope of rays reflected or refracted by a manifold Caustic (optics), optic phenomenon due to light rays reflecting/refracting through curved surfaces/objects Caustic Graphics, a graphics technology developer, part of Imagination Technologies Caustic Window, an alias of Aphex Twin (electronic musician Richard D. James) A playable character in the battle royale game Apex Legends Wikipedia
| Emergency Response Guide No. 154 |
Hazardous Materials Table
Source: 49 CFR §172 (15 June 2026)(3) Hazard class8Corrosive liquids |
(4) Identification number |
(5) Packing Group |
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(6) Labels |
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(1) Symbols |
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| B2 | |
|---|---|
| IB2 | |
| T11 | |
| TP2 | |
| TP27 |
(8) Packing Authorizations (§173.***) 
| (8A) Exceptions | 154 | see 49 CFR §173.154 |
|---|---|---|
| (8B) Non-bulk | 202 | see 49 CFR §173.202 |
| (8C) Bulk | 242 | see 49 CFR §173.242 |
(9) Quantity Limits 
| (9A) Passenger aircraft/rail | 1 L |
|---|---|
| (9B) Cargo aircraft only | 30 L |
(10) Vessel stowage 
| (10A) Location | |
|---|---|
| (10B) Other |
(3) Hazard class8Corrosive liquids |
(4) Identification number |
(5) Packing Group |
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(6) Labels |
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(1) Symbols |
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| IB3 | |
|---|---|
| T7 | |
| TP1 | |
| TP28 |
(8) Packing Authorizations (§173.***) 
| (8A) Exceptions | 154 | see 49 CFR §173.154 |
|---|---|---|
| (8B) Non-bulk | 203 | see 49 CFR §173.203 |
| (8C) Bulk | 241 | see 49 CFR §173.241 |
(9) Quantity Limits 
| (9A) Passenger aircraft/rail | 5 L |
|---|---|
| (9B) Cargo aircraft only | 60 L |
(10) Vessel stowage 
| (10A) Location | |
|---|---|
| (10B) Other |
Packing group comparison
Multiple packing groups apply to this entry. See assignment criteria in 49 CFR §173 Subpart D. Details are in the tabs above; differences are highlighted.
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![]() |
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3 ![]() | ||||||||||||||||||
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7 ![]() | ||||||||||||||||||
8 ![]() |
| Must not be loaded, transported, or stored together in the same vehicle or facility. | |
| May be loaded, transported, or stored together. | |
| May be loaded, transported, or stored together only with restrictions. |


