71. The owner-user of a pressure installation must have it inspected by a recognized person, except in the cases of the following installations:(1) a refrigeration pressure installation using an A1 or B1 refrigerant;
(2) a drain tank;
(3) an air tank installation whose authorized maximum operating pressure does not exceed 1,725 kPa, whose volume does not exceed 0.651 m3 and whose diameter does not exceed 0.61 m.