Second (2nd) Public Review of
BSR/IIAR 4-202x
Installation of Closed-Circuit
Ammonia Refrigeration Systems

Background Information

The revised standard, BSR/IIAR 4-202X, is intended to apply to installation of closed-circuit ammonia refrigeration systems. It supplements existing general refrigeration standards issued by IIAR and other organizations such as ASME and ANSI. It is not intended to supplant existing safety codes (e.g., model mechanical or fire codes).

This revised standard for periodic maintenance requirements has been approved by IIAR's Board of Directors for public review. The standard includes criteria for the safe installation of closed-circuit ammonia refrigeration systems. The appendices are informative.

The second (2nd) public review of the draft standard will be conducted from July 10th, 2020 through August 24th, 2020. Comments must be submitted to IIAR no later than August 24th, 2020. Click here for a copy of the public review draft in electronic (pdf) form that can be printed from your computer.

Copies will also be provided by fax or mailed upon request. Click here for the on-line request form, or click here to download a pdf file of the request form.

American National Standards Institute (ANSI) procedures will be utilized to develop evidence of consensus for this revised standard. IIAR is the ANSI-Accredited standards developer for ANSI/IIAR 4-202X. Individuals, organizations, companies, government agencies, standards developers, etc., who are directly and materially affected by the proposed standard are invited to participate in the public review.

Letter to IIAR Members | Background Information | Public Review Announcement
Public Review Draft | Online Comment Form