Intermodal Tanks
An intermodal tank is a tank container that can be transported by different modes (usually vessels, trains, and trucks). Most are built as a cylindrical tank (or set of pressure cylinders) within a metal support frame (usually 20 feet long, 8 feet wide, and 8.5 feet tall).
Intermodal tanks carry liquids or—less often—liquefied gases. To identify the tank's contents, check for a stenciled name, placards, or printed documentation. More tips on where to look for identifying informationMore tips on where to look for identifying information
To identify the contents of an intermodal tank, check for:
- Stenciled name. The shipping name of the hazardous material may be stenciled on the tank.
- Placards. DOT placards on the tank indicate the substance's main hazard and may also display the UN/NA number . Look for identical, diamond-shaped placards on the front, rear, and both sides of the tank. Sometimes the UN/NA number is included on the placard (or on an orange panel just below it). However, note that placards may be missing, and tanks may be incorrectly placarded.
- Hazard identification panel. Some intermodal tanks are placarded with an orange hazard identification panel displaying an international hazard identification code along with the UN/NA number for the tank contents.
- Document tube. This tube may be mounted on the frame near the dataplate. It may contain documentation for the transported substance. Look for the substance's name and identification numbers in the documents in the tube.Ìý
- Shipping papers or cargo manifest. Look for these documents for the vessel or vehicle carrying the intermodal tank; the documents should list the UN/NA number and name for each hazardous material. (Where can I find shipping papers or cargo manifests?)ÌýOn shipping papers or cargo manifests , look for theÌý UN/NA number and shipping name for each hazardous material. Below is an example of how these identifiers might be shown on a shipping paper. The shipping papers also show each substance's hazard class or division number (shown below afterÌýthe shipping name), which indicates its hazards.
Once you haveÌýfound identifiers for the chemical, you can look up its datasheet in CAMEO 365betÓéÀÖ.
Click on the link below each picture to see a description of that type of intermodal tank and its possible contents.
IM-101 Intermodal Tank (equivalent to IMO Type 1)
- Transports both hazardous and nonhazardous liquids and solids. May contain toxic , corrosive , or flammable materials with flash points Ìýbelow 32°F.
- Classified as nonpressurized, but can have a working pressure up to 100 psig .
- Capacity ranges from 5,000 to 6,300 gallons.
- Commonest type of intermodal tank container.
IM-102 Intermodal Tank (equivalent to IMO Type 2)
- Transports both hazardous and nonhazardous liquids and solids. Most likely to contain non-regulated materials such as food-grade commodities, but may contain alcohols, some corrosives, pesticides, resins , solvents , and flammable materials with flash points between 32°F and 140°F.
- Classified as nonpressurized, but can have a working pressure up to 25.4 psig.
- Capacity ranges from 5,000 to 6,300 gallons.
Spec 51 (DOT Specification 51 or IMO Type 5)Spec 51 (DOT Specification 51 or IMO Type 5)
- Typically contains gases liquefied by pressure, such as LPG and ammonia. May also contain high vapor pressure liquids (such as motor fuel antiknock compounds) and pyrophoric liquids (such as aluminum alkyls).
- Classified as pressurized. Working pressure may range from 100 to 500 psig .
- A nameplate must be fixed to each end of the tank. It lists DOT specification number (Spec 51), manufacturer's name and serial number, capacity, weight, and design pressure.
- Tank capacity can range from 50 to 5,500 gallons, and tank dimensions may vary.
- Less common than IM-101 and IM-102 tanks.
Cryogenic Tank Container (or IMO Type 7)Cryogenic Tank Container (or IMO Type 7)
- Transports gases liquefied by refrigeration, such as argon, oxygen, and helium (these gases are also called cryogenic gases).
- Transports gases in high-pressure cylinders tested to 3,000 or 5,000 psi Ìý(such as oxygen, nitrogen, helium, and hydrogen).