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Polyhalogenated biphenyls, liquid or Halogenated monomethyldiphenyl-methanes, liquid or Polyhalogenated terphenyls, liquid

HMT May 2026

UN / ID: UN 3151
Hazard class: 9
Packing group: II
ERG guide: ERG 171
Special provisions: SP IB2
Source: 49 CFR §172 (2026/05)

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Polyhalogenated biphenyls, liquid or Halogenated monomethyldiphenyl-methanes, liquid or Polyhalogenated terphenyls, liquid

Emergency Response Guide No. 171

Hazardous Materials Table

Source: 49 CFR §172 (2026/05)

(3) Hazard Class

9
Miscellaneous hazardous materials

(7) Special Provisions (§172.102)

×Note:
Special provisions may be very complex. The extracts are taken from 49 CFR §172.102. Please be careful with the information, as necessary, additional conditions may be applied that are not written here. Please check the original source and report bugs.

IB2	Authorized IBCs: Metal (31A, 31B and 31N); Rigid plastics (31H1 and 31H2); Composite (31HZ1). Additional Requirement: Only liquids with a vapor pressure less than or equal to 110 kPa at 50 °C (1.1 bar at 122 °F), or 130 kPa at 55 °C (1.3 bar at 131 °F) are authorized. Browse special provision IB2

(8) Packing Authorizations (§173.***)

(8A) Exceptions	155	see 49 CFR §173.155
(8B) Non-bulk	204	see 49 CFR §173.204
(8C) Bulk	241	see 49 CFR §173.241

(9) Quantity Limits

(9A) Passenger aircraft/rail	100 L
(9B) Cargo aircraft only	220 L

(10) Vessel stowage

(10A) Location

Stowage category “A” means the material may be stowed “on deck” or “under deck” on a cargo vessel or on a passenger vessel.

Source: 49 CFR §172.101(k)

(10B) Other

95	see 49 CFR §176.84

Source: 49 CFR §176.84

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.

No compatibility information for class 9 in 49 CFR §177.848 included.

Scope & sources (important)Click to show CFR references

This check evaluates segregation per 49 CFR §177.848. Additional loading/unloading and handling requirements may still apply; see 49 CFR §177 Subpart B (Loading and Unloading):

§177.834 - General requirements
§177.835 - Class 1 materials
§177.837 - Class 3 materials
§177.838 - Class 4 (flammable solid) materials, Class 5 (oxidizing) materials, and Division 4.2 (pyroforic liquid) materials
§177.839 - Class 8 (corrosive) materials
§177.840 - Class 2 (gases) materials
§177.841 - Division 6.1 and Division 2.3 materials
§177.842 - Class 7 (radioactive) material
§177.843 - Contamination of vehicles

Similar substances

UN / ID	Proper shipping name	Hazard class
UN 3152	Polyhalogenated biphenyls, solid or Halogenated monomethyldiphenyl-methanes, solid or Polyhalogenated terphenyls, solid	9