HCA-100Type StandardCODDissolverIn accordance with the national standardsStrictly guarantees micro-boiling during recirculating heating.2Hourly dissolution operation; the preparation and amount of reagent solution are bothGBEnsure consistency in legal matters to guarantee reliable analysis results.HJ828-2017National Standard Analytical Method - Water Quality Chemical Oxygen DemandCOD（CrMeasurement of ）.
HCA-100Type StandardCODThe dissolver is mainly composed of the body, reflux tube, fan, electric furnace plate, etc.4Most components are equipped with microcomputer technology for timed control of the heating furnace plate and fan.6A conical flask reflux setup is heated simultaneously.
InstrumentWe are using glass burr reflux tubes instead of spherical reflux tubes and replacing the recirculating water cooling method with air and water cooling techniques, making the operation more convenient. The cooling section is mainly completed by water cooling of the burr condenser tubes and fan air cooling, with the upper part of the condenser tube being spherical.3Bubble; the catalyst is added here, preventing the immediate volatilization of light components in the sample, and a volatile cap can be sealed on. The lower part is“Burrs”Shape, extending from the condenser tube wall on a plane3PieceOpposite“Cold Brew”The cooling surface is increased compared to a simple spherical condenser tube.It effectively blocks the passage of volatile substances and vapors, coupled with the dual action of cooling water inside the upper spherical reflux tube and the internal fan, ensuring the sample is回流cooled.
Chemical Solution Preparation and Operation of InstrumentsCODThe calculation strictly adheres toGB 11914-89,$$ Less than50mg/LNo Chinese content provided.CODWater samples can be elevated by diluting titrant and oxidizing agents, above1000mg/LPlease provide the Chinese content you would like translated into American English.CODWater samples can be measured by diluting the water sample proportionally.
Technical Specifications
Measurement Range:0～1000mg/L, 1000～10000mg/L (Water Sample Dilution)
Sample Quantity:6Unit250mlConical flask
Measurement Time: Not greater than21.5 hours
Measurement Error: Potassium Phthalate Standard Solution500mg/L), relatively not greater than the standard deviation5.0%
Industrial Organic Wastewater500mg/L), relatively not greater than the standard deviation8.0%
Ambient Temperature:0～45℃
Heating Power:1350W （AC 220V±22V,50HZ）
Key Features
Technical Specifications:(1)The dissolution time can be set, and the instrument will automatically stop heating once the dissolution is complete, allowing for unattended operation.
(2)After the sample dissolution is complete, the instrument's fan continues to operate to assist in cooling the sample.(3)Replace with Feng Shui dual cooling instead of recirculating water cooling,Save on electricity and water usage, enhance efficiency, and improve the safety of the equipment.
