CSA Z275.1:23

Preface 

This is the sixth edition of CSA Z275.1, Hyperbaric operations and work in compressed air environments. It supersedes the previous editions published in 2016, 2005, 1993, 1982, and 1974 under the title Hyperbaric facilities. For improved application to dive support and clinical settings, this edition has been significantly updated and reorganized to incorporate requirements from CSA Z275.3. As well, it has been technically updated to correspond with updates to other related standards in the CSA Z275 series of standards as well as with ASME PVHO-1. Changes to this edition include the following: a) updated definitions (Clause 3); b) updated chamber design requirements (Clause 4); c) added requirements for single-occupancy chambers (Clause 15); d) updated requirements for single and multiple hyperbaric chamber operators (Clause 18.2.3); e) added Clause 19on hyperbaric operations in support of compressed air environments; f) added Annex Ion single-occupancy clinical hyperbaric chamber operators; and g) added Annex J, which is a bibliography on offshore hyperbaric standards, regulations, and guidance documents. This Standard was developed by CSA Group with funding support provided by the Canadian Association of Administrators of Labour Law — Occupational Safety and Health (CAALL-OSH), including provincial and territorial governments, as well as the Government of Canada. CSA Group is solely responsible for the content of this Standard, and CSA Group and the funding bodies disclaim any liability in connection with the use of the information contained in this Standard. This Standard was prepared by the Subcommittee on Hyperbaric Facilities and Compressed Air Environments, under the jurisdiction of the Technical Committee on Occupational Diving and Hyperbaric Environments and the Strategic Steering Committee on Occupational Health and Safety, and has been formally approved by the Technical Committee. This Standard has been developed in compliance with Standards Council of Canada requirements for National Standards of Canada. It has been published as a National Standard of Canada by CSA Group. 

Scope 

1.1 General 

1.1.1 Application 

This Standard applies to hyperbaric chambers that have as their primary function the subjection of humans to pressure environments exceeding 1 atmosphere absolute, such as those required in a) diving operations; b) work under compressed-air conditions; c) medical treatment; d) training; and e) research. 

1.1.2 Minimum requirements 

This Standard establishes minimum requirements for the following of all hyperbaric chambers: a) operation; b) use; c) design; d) construction; e) maintenance; and f) testing. 1.2 Classification of human occupancy hyperbaric chambers 

1.2.1 General 

This Standard addresses the following classes of human-occupancy chambers: a) chambers used for clinical hyperbaric oxygen (HBO) treatment and/or for research purposes; b) chambers used for occupational diving operations; c) chambers used for tunneling and caisson operations; and d) hyperbaric chamber systems in support of offshore diving operations. 

1.2.2 Chambers used for clinical HBO treatment and/or research purposes 

A clinical HBO chamber is a hyperbaric facility that is overseen by a trained safety officer and a Level 2 or Level 3 hyperbaric physician, licensed in the jurisdiction in which they practice medicine, who adheres to the CUHMA Guidelines. Refer to Clause 17 for requirements applicable to research facilities used for human-subject research. 

1.2.3 Types of hyperbaric chambers 

1.2.3.1 Single-occupancy chamber 

A single-occupancy or mono-place chamber is a hyperbaric chamber normally intended for the treatment of one person and capable of oxygen or air pressurization to a depth not exceeding 20 msw (66 fsw) for the provision of hyperbaric oxygen therapy, normally for clinical applications only. 

1.2.3.2 Stationary (multiple-occupancy chamber)

A stationary chamber is a multiple-occupancy or multi-place hyperbaric chamber permanently installed in a vessel, platform, or shore-based facility and fixed to a permanent foundation, i.e., the vessel, platform, or building in which it is housed. Note: Single-lock multiple-occupancy stationary chambers may fall within this category. This is to be approved by the AHJ. 

1.2.3.3 Transportable double-lock chambers (DDC) for occupational diving/hyperbaric operations in support of tunnel construction 

A DDC is a multiple-occupancy hyperbaric chamber with two locks (compartments) that can a) operate to transfer personnel in and out of the main lock while maintaining pressure of the main lock; and b) be moved to a diving or caisson site to support on-site operations. This chamber may be temporarily set up as a stationary chamber during the period o

Product Details

Edition:

6th

Published:

05/11/2023

ISBN(s):

9781488347825

Number of Pages:

159

File Size:

1 file , 2 MB

Product Code(s):

2430585, 2430585

Note:

This product is unavailable in Russia, Ukraine, Belarus

Document History

CSA Z275.1:23

CSA Z275.1:16 (R2021)

CSA Z275.1-05 (R2012)

CSA Z275.1-93 (R2003)