Features ◆ KDB-9016 devices follow the standard COD digestion with international standards (ISO) and the national standard GB11914-89 analysis of water quality norms to formulate the determination of chemical oxygen demand COD steps to ensure the heating of micro boiling reflux for 2 hours digestion operation , reagent preparation and addition of the solution and the GB method are consistent, ensuring reliable and accurate analysis results. 
 ◆ The use of computer technology equipment timing control heating furnace, which can return multiple cone-shaped device for heating digestion 
 ◆ instrument also used instead of spherical glass burr return pipe return pipe, and air-cooled technology to replace the water cooling method, both water-saving equipment and enables standardization, but also improve the safety of the instrument used. 
 ◆ chemical solution preparation equipment, operation and calculation of COD values ??in full compliance with GB11914-89, COD values ??of less than 50mg / L of water samples can be titrated by dilution and oxidizer to improve accuracy, higher than 1000mg / L of COD in water samples can be diluted by the ratio of water to complete the determination. 

 The Company series ◆ 4 COD digestion tubes (4 samples simultaneously digestion) ◆ 5 tubes (5 samples simultaneously digestion) 
 ◆ 6 tubes (6 samples simultaneously digestion) ◆ 10 tubes (10 samples simultaneously digestion) 
 ◆ In addition, I also six stainless steel digestion device 

 Main parameters of technical indicators parameter range 

 Measuring range 0 ~ 1000mg / L, 0 ~ 10000mg / L (water sample dilution) 

 Measurement time of 10 minutes to 2 hours 

 Measurement error of potassium hydrogen phthalate standard solution (500mg / L), relative standard deviation was less than 5.0% 

 Industrial organic wastewater (500mg / L), relative standard deviation was less than 8.0% 
 Heating power 1200W (AC 220V ± 10%, 50HZ) 
 5 ~ 40 ℃ ambient temperature