Scope 1.1 This Standard details the requirements for the selection and use, handling, filling, and unloading of highway tanks, TC portable tanks, and ton containers used as means of containment for the transportation of dangerous goods of Class 2.1.2 This Standard sets out certain minimum requirements for the selection of the appropriate means of containment for the transportation of dangerous goods. This Standard does not, however, prescribe selection of the materials of construction of the means of containment to ensure chemical compatibility with the dangerous goods. Consequently, it is essential to exercise competent technical and engineering judgment in conjunction with this Standard.1.3 Where any requirement of this Standard differs from the Transportation of Dangerous Goods (TDG) Regulations, the requirements of the TDG Regulations apply. 1.4 This Standard does not apply to tubes for the transportation of gases. Requirements for these tubes are provided in CSA B340.