Background Information

The proposed standard, IIAR 6-202x, is intended for providing the minimum requirements for inspection, testing, and maintenance (ITM) applicable to closed-circuit ammonia refrigeration systems. This proposed standard reflects the input received and consensus thereof from ammonia refrigeration industry practitioners for inspection, testing, and maintenance requirements. This proposed standard is not intended to serve as a comprehensive, detailed technical inspection, testing, and maintenance manual and shall not be used as such.

This proposed standard defines minimum requirements for ITM of closed-circuit ammonia refrigeration systems. Additional precautions may be necessary because of particular circumstances, project specifications, or other jurisdictional considerations.

This proposed standard is directed towards the safety of persons and property on or near the premises where the refrigeration systems are located. It supplements existing general refrigeration standards issued by IIAR and other organizations such as ASHRAE, ASME, and ANSI. It is not intended to supplant existing safety codes (e.g., model mechanical or fire codes).

This proposed standard revision has been approved by IIAR's Board of Directors for public review. It includes direction for the minimum requirements for record keeping and inspection, testing, and maintenance (ITM) tasks for safe closed-circuit ammonia refrigeration systems.

This first (1st) public review of the proposed standard will be conducted from April 12th, 2024 through May 27th, 2024. Comments must be submitted to IIAR no later than 5:00 pm Eastern Standard Time (EST) on May 27th, 2024. Click here for a copy of the public review draft in electronic (pdf) form.

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 proposed standard. IIAR is the ANSI-Accredited standards developer for IIAR 6-202x. 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