The TDG regulations identify the Means of Containment two ways: Small and Large.
A small Means of Containment (SMOC) is described as being able to hold:
A small Means of Containment includes:
➤ Drums ➤ Cylinders ➤ Bags ➤ Boxes ➤ Jerricans
To identify the hazards, a SMOC will require the proper TDG label(s). The labels are 100 mm x 100 mm (4″ x 4″) in size.
Each primary class hazard and every subsidiary (secondary) hazard must be shown.
Small MOC require additional information along with the labels. These markings consist of: