November 10th, 2017 To: IIAR Members Re: First (1st) Public Review of Standard BSR/IIAR 7-201x, Developing Operating Procedures for Closed-Circuit Ammonia Refrigeration Systems. A first (1st) public review of draft standard BSR/IIAR 7-201x, Developing Operating Procedures for Closed-Circuit Ammonia Refrigeration Systems is now … Continue reading IIAR 7 update now open for Public Review