64. A safety device must be repaired or replaced in the following cases:
(1) the device is leaking, is cracked, does not operate in a satisfactory manner or has a broken seal;
(2) the outlet, outlet piping or piping linking the device to a pressure installation is blocked or the opening shows a risk of burn or injury;
(3) in the case of a valve, rust deposits have accumulated between the seat and the disk or the seat and the disk are stuck.