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e-CFR data is current as of January 14, 2021

Title 46Chapter ISubchapter NPart 148Subpart A → §148.11

Title 46: Shipping
Subpart A—General

§148.11   Hazardous or potentially dangerous characteristics.

(a) General. When Column 5 refers to a code for a hazardous material or PDM, the meaning of that code is set forth in this section.

(b) Table of Hazardous or Potentially Dangerous Characteristics.

CodeHazardous or potentially dangerous characteristic
1Contact with water may cause heating.
2Contact with water may cause evolution of flammable gases, which may form explosive mixtures with air.
3Contact with water may cause evolution of toxic gases.
4If involved in a fire, will greatly intensify the burning of combustible materials.
5A major fire aboard a vessel carrying this material may involve a risk of explosion in the event of contamination (e.g., by a fuel oil) or strong confinement. If heated strongly will decompose, giving off toxic gases that support combustion.
6These mixtures may be subject to self-sustaining decomposition if heated. Decomposition, once initiated, may spread throughout the remainder, producing gases that are toxic.
7Toxic if swallowed and by dust inhalation.
8Harmful and irritating by dust inhalation.
9Highly corrosive to steel.
10Powerful allergen. Toxic by ingestion. Skin contact or inhalation of dust may cause severe irritation of skin, eyes, and mucous membranes in some people.
11May be susceptible to spontaneous heating and ignition.
12Liable to cause oxygen depletion in the cargo space.
13Liable to emit methane gas which can form explosive mixtures with air.
14Dust forms explosive mixtures with air.
15May present substantial danger to the public health or welfare or the environment when released into the environment. Skin contact and dust inhalation should be avoided.
16Combustible. Burns with dense black smoke. Dust may cause skin and eye irritation.
17Radiation hazard from dust inhalation and contact with mucous membranes.
18Susceptible to fire from sparks and open flames.
19May self-heat slowly and, if wet or containing an excessive proportion of unoxidized oil, ignite spontaneously.
20Fire may produce irritating or poisonous gases.
21Dust may contain toxic constituents.
22Lead nitrate and lead sulfide are hazardous substances; see code 15 of this table and §148.270.
23Hazardous substance when consisting of pieces having a diameter less than 100 micrometers (0.004 in.); see code 15 of this table and §148.270.
24Cargo subject to liquefaction.
25Subject to liquefaction if average particle size of cargo is less than 10 mm (.394 in.).
26This entry is considered a Marine Pollutant in accordance with 49 CFR 172.101 Appendix B.
27This entry is considered a certain dangerous cargo in accordance with 33 CFR 160.202.

[75 FR 64591, Oct. 19, 2010, as amended by USCG-2005-21869, 80 FR 5336, Jan. 30, 2015]

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