Edition currently in force:
CSA B341-25
Date Published:
January 2025
Previous edition:
CSA B341-18
Upcoming edition/amendment:
CSA B341-29
On this page
- Scope of the standard
- Finding the standard in the TDG Regulations
- Obtaining or viewing a copy of the standard
- Contact us
Scope of the standard
CSA B341 sets out the requirements for the design, construction, initial inspection and testing, marking, periodic inspection and testing, and repair of UN pressure receptacles and multiple-element gas containers for the transport of dangerous goods and carried out under the approval of the Canadian authority.
Finding the standard in the TDG Regulations
- Section 1.3.1: Definitions — Safety Standards and Safety Requirement Documents
- Section 1.3.2: Transitional Period
- Section 1.50: Hot Air Balloon Cylinder Exemption
- Section 5.10: Means of Containment for Class 2, Gases:
- Section 5.10 of the TDG Regulations specifies that for the transportation of dangerous goods in Class 2 by any mode, means of containment in accordance with CSA B342 are permitted
- CSA B342 invokes CSA B341 in relation to the design, construction, initial inspection and test, repair, and periodic inspection and test of UN pressure receptacles and multiple-element gas containers
Obtaining or viewing a copy of the standard
A copy of the standard can be obtained directly from the Canadian Standards Association (CSA).
To view the standards, the CSA Group offers an online platform where registered users can access, free of charge, the Transportation of Dangerous Goods (TDG) safety standards published by CSA and referenced in the federal TDG Regulations. Users must log into CSA’s Communities of Interest and register for access to the TDG View Access site.
Contact us
Inquiries pertaining to applications for registration
Telephone: 1-855-298-1520
After choosing the language (1 for English, 2 for French), press option 1.
Email: MOCregister-Registrecontenant@tc.gc.ca
Technical inquiries
Email: tdgcontainers-tmdcontenants@tc.gc.ca
Please include the text "Cylinders" in the subject line.
Related links
- Standard CSA B342
- TDG facilities database (UN pressure receptacle manufacturers, UN pressure receptacle periodic inspection and test facilities (requalifiers), inspection bodies for manufacture of UN pressure receptacles, design review agencies for multiple-element gas containers (MEGC))