Since every compartment in a ship is given a marking by the 1950 system, it is both convenient and desirable to refer to many compartments and fittings by the deck number and section letter rather than by an arbitrary number, for example' 3N flour store' and' 4K hull and fire pump' .
Ukusukela ukuba indawo nganye yokuhlala enqanaweni iyaphawulwa ngenkqubo yango-1950, kuluncedo kwaye kungumqweno ukubhekiselela kwindawo ezininzi zokuhlala kunye nemelinganiselo yenombolo yedekhi kunye nonobumba wecandelo endaweni yenombolo yokuzithandela, umzekelo 'isitora seflawa' esingu-3N kunye 'nesiqu senqanawa kunye nempompo yomlilo' engu-4Kit.