COD Umhlahlandlela Wokukhetha: Izinsimbi Eziphathekayo T-6800 Amapharamitha amaningi we-colorimeter ephathekayo Amathuluzi Welebhu I-Z-T700 Intelligent Multi-parameter Analyzer I-Z-D700 Multi-parameter Analyzer I-Z-T500 Intelligent Multi-parameter Analyzer I-Z-D500 Multi-parameter Analyzer I-TA-60 Intelligent Multi-function Water Analyser ehlakaniphile TA-98 I-Spectrophotometer Ebonakalayo ye-UV