Regulatory Proposals under Development

Public Notice – 60-day consultation for new editions of CSA B339, CSA B340, CSA B341, and CSA B342

New editions of the following standards are being developed by the Canadian Standards Association’s (CSA) Technical Committee on Cylinders, Spheres, and Tubes for the Transportation of Dangerous Goods and are expected to be published in early 2018:

CSA B339 "Cylinders, spheres, and tubes for the transportation of dangerous goods"

CSA B340 "Selection and use of cylinders, spheres, tubes, and other containers for the transportation of dangerous goods, Class 2"

CSA B341 "UN pressure receptacles and multiple-element gas containers for the transport of dangerous goods"

CSA B342 "Selection and use of UN pressure receptacles and multiple-element gas containers for the transport of dangerous goods, Class 2"

The most notable proposed changes that appear in the draft standards are summarized below:

CSA B339

  • Revised burst test requirements for specification TC-4LM containers
  • Revised pressure-cycling test requirements for specification TC-4LM containers
  • Revised requirements for the carbon fibre used in specification TC-3CCM cylinders
  • Clarified requirements for the wall thickness calculation of specification TC-4BWM, TC-4BM, TC-4BAM, and TC-4AAM33 cylinders
  • Revised requirements for ultrasonically inspecting the starting stock of specification TC-3ALM cylinders
  • New provisions for requalifying seamless aluminum cylinders manufactured to grandfathered special permits and exemptions
  • Revised requirements for requalifying foreign specification containers other than those already addressed by CSA B339 and CSA B341

CSA B340

  • New provisions to authorize the use of United States Department of Transport (U.S. DOT) specification containers
  • New provisions to authorized the use of containers manufactured in accordance with grandfathered U.S. DOT special permits and exemptions
  • New provisions allowing containers to be requalified, repaired, reheat treated and rebuilt in accordance with the U.S. DOT’s 49 CFR outside of Canada
  • New provisions for vacuum-insulated closed containers for helium refrigerated liquid

CSA B341

  • Alignment with the 19th edition of the UN Model Regulations:
    • New reference to ISO 3807:2013 "Gas cylinders — Acetylene cylinders — Basic requirements and type testing"
    • New reference to ISO 11515:2013 "Gas cylinders – Refillable composite reinforced tubes of water capacity between 450 L and 3000 L – Design, construction, and testing"

CSA B342

  • Alignment with the 19th edition of the UN Model Regulations:
    • New reference to ISO 3807:2013 "Gas cylinders — Acetylene cylinders — Basic requirements and type testing"
    • New reference to ISO 11515:2013 "Gas cylinders – Refillable composite reinforced tubes of water capacity between 450 L and 3000 L – Design, construction, and testing"
    • New reference to ISO 10297:2014 "Gas cylinders — Cylinder valves — Specification and type testing"
    • New provisions for liquefied gases charged with compressed gases
    • New provisions for liquids charged with compressed gases
  • New provisions allowing UN pressure receptacles to be repaired in accordance with the U.S. DOT’s 49 CFR outside of Canada
  • New provisions allowing the use of multiple-element gas containers that comply with the U.S. DOT’s 49 CFR
  • New provisions allowing multiple-element gas containers to be periodically inspected, tested and repaired in accordance with the U.S. DOT’s 49 CFR outside of Canada

As part of the standards development process, the CSA has posted the draft standards for public review and comment on its website:

The public review and comment period will remain open for a period of 60 days. Stakeholders must register on the CSA’s website in order to access the draft standards and all comments must be submitted in writing via the CSA’s website. The Technical Committee on Cylinders, Spheres, and Tubes for the Transportation of Dangerous Goods will take all comments into consideration in the development of the final standards.

Canadian Standards Association (CSA) Contact:

Ron Meyers
Project Manager, Worker and Public Safety
CSA Group
178 Rexdale Blvd.
Toronto, ON  M9W 1R3
Tel: 416-747-2496
ron.meyers@csagroup.org
www.csagroup.org

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