This standard is intended to apply to the design, construction, repair, alteration, location, installation, and operation of anhydrous ammonia systems including refrigerated ammonia storage systems.This standard does not apply to:- Ammonia manufacturing plants;- Refrigeration systems where ammonia is used solely as a refrigerant. Such systems are covered in American National Standards Institute (ANSI)/American Society of Heating, Refrigerating and Air-Conditioning Engineers (ASHRAE) 15, Safety Standard for Refrigeration Systems and ANSI/International Institute of Ammonia Refrigeration (IIAR) 2, American National Standard for Equipment, Design and Installation of Closed-Circuit Ammonia Mechanical Refrigerating Systems;- Ammonia transportation pipelines; and- Ammonia barges and tankers.