This standard covers tanks (single-walled, double-walled, fuel tanks), containers (pressurized containers, vacuum containers), ammonia storage containers (large-capacity refrigeration systems, fertilizer storage), and parts (laminated, lined, double-walled). This specifies a leak test method that uses a detection agent to detect ammonia gas leaking from test specimens such as wall specifications), seals made of different materials (glass, metal), and other test specimens (complex piping systems, flexible containers).