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GL-208GL high chlorine COD digester
GL-208GL high chlorine COD digester
Product details
GL-208GL High Chlorine COD Dissolver Detailed Introduction
Product Introduction
The GL-208GL high chlorine COD digester follows the Chinese environmental protection industry standard - determination of chemical oxygen demand for high chlorine wastewater - chlorine gas calibration method. The chemical solution preparation, operation, and COD calculation of the instrument are fully in accordance with HJ/T70-2001.
application area
It can be widely used for water quality testing in research institutes, sewage engineering, water environment testing, petrochemicals, metallurgy and steel, biomedicine, food and dairy industry, wool textile printing and dyeing, electronic machinery, aquaculture, photovoltaics, leather, papermaking, and other fields.
Measurement principle
• National standard (GB11914-89) and environmental standard (HJ828-2017)
Product Features
• The wavy strip heating wire of the heating plate is a new imported alloy material with a long service life.
• Microcrystalline panels are capable of withstanding high temperatures up to 800 ℃, with uniform heating on the surface and fast heating and cooling speeds.
• The heating plate is made of high-temperature resistant and heat-insulating ceramic fiber material, which has low panel heat loss and uniform thermal conductivity.
• The microcrystalline panel is flat, smooth, and easy to clean. If the surface is contaminated, wipe it dry with a cloth.
• The glass burr reflux tube has a good digestion reflux effect to ensure the accuracy of sample digestion results.
• Dual screen digital display digestion time: temperature (between 165 ℃ -330 ℃) and timing can be set at any time.
• After digestion is complete, the heating will automatically stop and the fan will continue to work for 120 minutes to assist in cooling the sample. It can be left unattended.
Technical Parameter
| PRODUCT MODEL | GL-208GL |
| Execution standards | National Standard HJ/T70-2001 |
| Number of dissolved samples | 8 (COD specific for high chlorine wastewater) |
| Dissolving bottle capacity | 500ml (24 # ground conical bottle) |
| Dissolve sample quantity | 20ml |
| measuring range | 30-700mg/L (chloride concentration less than 20000mg/L) |
| digestion time | Nitrogen gas supply, recommended for digestion for 2 hours (user adjustable) |
| measurement error | The relative standard deviation of potassium hydrogen phthalate standard solution (500mg/L) shall not exceed 5.0%; The relative standard deviation of industrial organic wastewater (500mg/L) shall not exceed 8.0%; |
| ambient temperature | Environmental temperature: ≤ 35℃ |
| Power | 1600W (user adjustable, with temperature display) |
| heat panel | Microcrystalline glass panel |
| Instrument dimensions | 450mm× 350mm× 650mm |
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