I-COD Test Tube ekhiqizwe i-Aijiren ivamise ukusetshenziselwa ukuhlaziya izinga lamanzi, ukuqapha indawo ezungezile, ukutholwa kwesidingo komoyampilo kanye nokunye ukuhlola kwamakhemikhali. Lokhu kudinga izinto ezingavuthiwe eziphezulu zokukhiqizwa kwe-COD Test Tube, futhi kudinga ingilazi ezinzile nengasebenziyo ukuze kukhiqizwe. Izidingo zobuchwepheshe zabakhiqizi ziphakeme kakhulu. Njengefekthri enamashumi eminyaka esipiliyoni sokukhiqiza, i-Aijiren ingawuphatha kalula lo msebenzi.