Standard COD Dissolver (8 Cone Bottles)

KY-100 standard COD digesterBy using microelectronics technology for timed control of heating electric furnaces, it is possible to8A conical flask burr reflux tube is used instead of a ball reflux tube, and air cooling technology is used instead of tap water cooling, which can save water and standardize the instrument. They can maintain the necessary high temperature for the reaction within the set time to ensure digestion. It can be widely applied in fields such as environmental protection, scientific research monitoring, and production monitoring.

Main features of the instrument:

1.Adhered to the basic principles of ISO and GB standards, ensuring a digestion operation with reflux heating and micro boiling for 2 hours

2.The preparation and dosage of the reagent solution are consistent with the GB method * to ensure reliable and accurate analysis results

3.Simple, accurate analysis results, water conservation, automatic shutdown after completion

4.The instrument tray adopts a new type of high-temperature resistant inorganic environmentally friendly insulation material. The flat tray is made of high-temperature resistant microcrystalline glass panel. If the sample solution accidentally drips on it, simply wipe it dry with a cloth to reduce damage to the instrument caused by improper operation.

5.The standard COD digester follows the basic principles of the ISO standard HJ828-2017, ensuring a 2-hour digestion operation with reflux heating and slight boiling. The preparation and addition of reagent solutions are in accordance with the national standard.

6.The instrument adopts a glass burr reflux tube instead of a spherical reflux tube, and uses cold air technology instead of tap water reflux cooling method.

Instrument execution standard:

HJ828-2017 Determination of Chemical Oxygen Demand in Water Quality - Dichromate Method(Alternative)GB11914-89）

Main technical parameters:

1.Sample type: Liquid

2.Measurement range: 16-700mg/L (measured after dilution of water samples greater than 700mg/L)

3.Measurement time: ≤ 2h

4.Measurement error: The relative standard deviation of potassium hydrogen phthalate standard solution (500mg/L) is not more than 5.0%

Industrial organic wastewater (500mg/L) Relative standard deviation not exceeding 8.0%

5.Constant temperature accuracy: ± 1 ℃ 6.Heating time: (180 ℃)<20min

7.Heating power: ≤ 1600W (AC220V, 50HZ, users can choose their own heating power)

8.Dissolve 8 samples (using a 250mL conical flask with a 24 # grinding mouth)

9.Dissolving time: 10-2 hours and 30 minutes (users can set it freely)