CSA B339:25

1 Scope 1.1 General This Standard covers requirements for the manufacturing, inspection, testing, marking, requalification, reheat treatment, repair, and rebuilding of cylinders, spheres, and tubes (collectively referred to as “containers”) for the transportation of dangerous goods. In addition, this Standard includes the requirements for the qualification of new designs and registration requirements. 1.2 Designations and descriptions of containers 1.2.1 Subjects addressed This Standard covers the general requirements for containers (see Clause 4) and specific requirements as specifications (see Clauses 5to 23) for the manufacture of each type of container. The general requirements are applicable to all containers unless otherwise stated or unless they are not relevant to the individual specifications. 1.2.2 Container specifications covered in this Standard The specification designations and descriptions of containers covered in this Standard are listed in Tables 1to 6. Note: It should be noted that compliance with the provisions of the Transportation of Dangerous Goods Act and the regulations thereto might call for additional requirements due to particular characteristics or properties of individual dangerous goods. 1.3 Terminology In this Standard, “shall” is used to express a requirement, i.e., a provision that the user is obliged to satisfy in order to comply with the Standard; “should” is used to express a recommendation or that which is advised but not required; and “may” is used to express an option or that which is permissible within the limits of the Standard. Notes accompanying clauses do not include requirements or alternative requirements; the purpose of a note accompanying a clause is to separate from the text explanatory or informative material. Notes to tables and figures are considered part of the table or figure and may be written as requirements. Annexes are designated normative (mandatory) or informative (non-mandatory) to define their application. 1.4 Units of measurement The values given in SI units are the units of record for the purposes of this Standard except for the cylinder marking requirements where the service pressure and the test pressure, where applicable (e.g., Specification TC-39M), are expressed in bar. For consistency in the design and test requirements of all containers, MPa and kPa have been retained as units to express service pressure. Considering the use of the bar unit by ISO to mark service and test pressures, the Technical Committee decided to use the same unit for marking service pressure. The capital letter “M” is added to each specification designation to formally identify the container specification is metricated.