1. esetyenziswa kakhulu ekutsalweni kwe-oyile, ukusulungekiswa kwe-oyile, kushishino lweekhemikhali, emkhosini nakwezinye iindawo ezinobungozi kunye namaqonga e-oyile angaphesheya kolwandle, iinqwelo ze-oyile kunye nezinye iindawo zokukhanya okuqhelekileyo kunye nokukhanyisa okusebenzayo;
2. Ifanele indawo yerhasi eqhumayo kwindawo 1, indawo yesi-2;
3. Umoya oqhumayo: iklasi ⅡA,ⅡB, ⅡC;
4. Ifanele indawo yothuli oluvuthayo kwindawo ye-22, 21;
5. Ifanelekile kwiimfuno eziphezulu zokukhusela, iindawo ezimanzi.