.13 Delovanje sistema za odkrivanje se občasno preskuša po zahtevah uprave države zastave z uporabo opreme, ki proizvaja vroč zrak ustrezne temperature, dim ali aerosolne delce, ki imajo ustrezno gostoto ali velikost, ali druge pojave, povezane z začetkom požara, na katerega se mora detektor odzvati.
13 The function of the detection system shall be periodically tested to the satisfaction of the Administration of the flag State by means of equipment producing hot air at the appropriate temperature, or smoke or aerosol particles having the appropriate range of density or particle size, or other phenomena associated with incipient fires to which the detector is designed to respond.