JQ-100 standard COD digester (10 tubes)

one、 JQ-100 typeStandard COD digester (10 tubes)Product Introduction:
The JQ-100 standard COD digester follows the basic principles of ISO and HJ828-2017 standards, ensuring a 2-hour digestion operation with reflux heating and micro boiling. The preparation and addition of reagent solutions are consistent with the HJ method, ensuring reliable and accurate analysis results.
The JQ-100 standard COD digester adoptsMicrocomputer technology for timed control of heating electric furnace5 (standard), 6 (standard), and 10 (customized) digestion bottles can be heated simultaneously. To achieve the goals of energy conservation, reducing power load, water conservation, and improving efficiency.
The JQ-100 standard COD digester adopts a glass burr reflux tube instead of a spherical reflux tube, and uses air cooling technology instead of tap water cooling. This not only saves water and standardizes the instrument, but also improves the safety of instrument use.

The national standard HJ828-2017 specifies the steps for determining the chemical oxygen demand (COD) (cr) of water quality, and strictly specifies the conditions and indicators such as heating digestion time, solution acidity, and oxidant dosage for the method. It is obvious that the determination of COD (cr) in water quality has strict conditions, and any operation that violates these conditions will affect the accuracy of the determination.

II JQ-100Technical characteristics of standard COD digester:

1. No need to pour into other bottles, the digestion bottle can be directly measured after heating, making it convenient to use
2. Surface corrosion resistance and insulation type
3. Energy saving, reducing power load, and improving efficiency
4. Uniform heating and long service life
5. Burr reflux pipe, good cooling effect
6. Equipped with air cooling function, economical and practical
III JQ-100Performance parameters of standard COD digester:
1. Measurement range:10-700mg/L (measured after dilution of water samples greater than 700mg/L)
2. Temperature range: 30-399 ℃
3. Set time: 10~150min
4. Measurement time: no more than 2 hours
5. Measurement error: The relative standard deviation of potassium hydrogen phthalate standard solution (500mg/L) is not more than 5.0% for industrial organic wastewater (500mg/L), and the relative standard deviation is not more than 8.0%

6. Environmental temperature: 5-40 ℃
7. Heating power: 1200W (AC 220 ± 22V, 50HZ)
8. Dissolved samples: 6 (standard), 5 (standard), 10 (customized)

Dissolving bottle capacity: 250ml triangular conical flask with 5 holes

6-pole 250ml triangular conical flask

10 hole 150ml cylindrical bottle

9. Dissolving volume: 250ML
10. Power supply: AC220V 50Hz

The above parameters * comply with the requirements of relevant national standards. Due to product upgrades or discrepancies between pictures and actual machines, please refer to the actual machine.