Ammonia as a refrigerant is an obvious choice in these times of ecological awareness. It is a natural substance and its thermodynamic properties are superior to many of the man-made alternatives. However, its hazardous nature must not be overlooked. End-users are legally and morally obliged to ensure that they have in place safety management sufficient to mitigate the risk associated with their ammonia refrigeration systems. The programme described herein outlines a number of safety management tools that will allow the risk level to be reduced to as low as is reasonably practical.
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