October 5th, 2018
To: IIAR Members
Re: Fourth (4th) Public Review of Standard BSR/IIAR 7-201x, Developing Operating Procedures for Closed-Circuit Ammonia Refrigeration Systems.

A fourth (4th) public review of draft standard BSR/IIAR 7-201x, Developing Operating Procedures for Closed-Circuit Ammonia Refrigeration Systems is now closed.