This standard is applicable to pressure pipes in ammonia refrigeration system installation projects with a maximum working pressure greater than or equal to 0.1 MPa, a nominal diameter greater than 25 mm, and a medium operating temperature higher than -45°C.
DB34/T 1488-2011 Referenced Document
GB 50235 Code for construction of industrial metallic piping engineering
GB 50274 Code for construction and acceptance of refrigeration plant and air seperation plant installation
SBJ 12 Code for installation and acceptance specification of ammonia refrigeration system