TC51
- Portable tank for liquefied compressed gases (e.g., LPG, NH3)
- Steel
- Seamless or welded, or a combination of the two
- Water capacity greater than or equal to 450 L (119 US gal)
- Design pressure of at least 690 kPa (100 psi) and no more than 3450 kPa (500 psi)
TC60
- Portable tank for corrosive and some other liquids
- Fusion welded
- Cylindrical shape
- Maximum Allowable Working Pressure (MAWP) not less than 276 kPa (40 psi)
TC11
- Portable tank for nonflammable refrigerated liquidfied gases
- Design pressure of 174.3 kPa (25.3 psi) or greater
- Minimum water capacity of 450 L (119 US gal)
- Inner vessel shall be seamless or welded
- Circular cross-section
- Insulated (often by vacuum)
TC44
- Portable tank
- Steel or aluminum
- Slab-sided or other configurations accommodated
- MAWP between 18 and 28 kPa (2.65 and 4 psig)
- Minimum water capacity 3000L (660 Imp gal)
