Ifanelekile kumaziko ophando lwenzululwazi, i-electronic, ikhemikhali, amayeza kunye namanye amashishini amashishini anxulumeneyo, iilebhu, izikhululo zegazi, izibhedlele, amaziko okulawula izifo kunye nokuthintela kunye namaziko onyango.Izikhongozeli ezifanelekileyo zokugcina nokugcinwa zisebenza kwiingxowa zegazi, iisampulu zebhayoloji, imathiriyeli yebhayoloji, izitofu zokugonya kunye nezixhobo ezisebenza ngokutsha njengemizekelo engundoqo.