Question: Does my machinery room need an emergency ventilation system if it only has three walls? Answer: It may not require mechanical ventilation and could meet the requirements for “Natural Ventilation”. ANSI/IIAR 2-2021 §7.3.2 states that for outdoor systems, natural ventilation can be utilized instead of mechanical ventilation. For a machinery room to qualify for […]
Summary In October 2017, an ammonia release inside a machinery room resulted in the deaths of three people – two city workers and one refrigeration technician. A pinhole leak developed in a shell and tube brine chiller, which allowed ammonia to leak into the brine solution. The leak was discovered, but due to a lack […]
Detection systems are a key player in the realm of process safety. Early detection and notification of an ammonia leak has the potential to save lives. In addition to ensuring that ammonia detectors are operating and maintained correctly, it is equally important from a regulatory perspective to ensure required parameters are met. A partial list […]
It is here. On March 11, 2024, the Safer Communities by Chemical Accident Prevention (SCCAP) RMP rule changes were published in the Federal Register. This has started the clock on new Risk Management Program requirements that will become effective on May 10, 2024. However, many new requirements have deferred compliance dates written into the law, […]
Summary In July 2020, the installation of a brass plug in an ammonia refrigeration system resulted in a release of approximately 100-300 lbs of ammonia. Due to the corrosive nature of ammonia on brass, the plug developed a leak due to corrosion. Incident Description A brass plug was installed on a CUNO oil filter several […]
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