检测化学需氧量

Titer standardisation of the titration solution
The titer of the solution is determined in use on a daily basis. To do so, 10.0 ml of the potassium dichromate solution 0.02 mol/l are diluted with water to approx. 100 ml. 30 ml of sulphuric acid are added carefully to this solution. After coo领 down the solution is placed on the magnetic stirrer and titrated using 3 times the method ?Titer COD. A triple determination is carried out. The average value is automatically calculated in mol/l and stored into the exchange unit. ChemTron Titroline 6000自动电位滴定仪 优莱博 TitroLine 7500KF容量法卡式水份滴定仪 优莱博 TitroLine 6000自动电位滴定仪