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COD Set-Up MD50

The Lovibond® MD50 COD Set-Up brings together everything needed for routine Chemical Oxygen Demand (COD) testing in one convenient package. Combining the MD50 photometer with ready-to-use ST-COD tube tests, a digestion reactor and essential accessories, it provides a straightforward solution for measuring COD in a wide range of water samples.

With the introduction of Very Low Range (VLR) COD measurement, concentrations can be measured from just 2 mg/L, extending COD analysis to applications where greater sensitivity is required for low-pollution water samples.


Suitable for laboratories, industrial facilities and environmental monitoring, the MD50 COD Set-Up provides a complete solution for efficient, repeatable COD analysis.

Simple, Reliable COD Testing

The MD50 COD Set-Up uses the established sealed-tube method to simplify routine COD analysis and minimise sample handling. Simply add the water sample to a Lovibond® ST-COD tube, digest at 150 °C for two hours, then measure the prepared sample using the MD50 photometer.


Ready-to-use, prefilled ST-COD tubes make sample preparation straightforward and help reduce handling and the potential for operator error. The MD50 then uses photometric measurement to determine the COD concentration, providing consistent results for routine water quality monitoring.


The combination of prefilled reagents, controlled digestion and photometric analysis creates a straightforward workflow suitable for regular laboratory and field-based testing.

Flexible Measurement Across Different Water Samples

Lovibond® ST-COD tube tests are available in multiple measuring ranges, allowing the appropriate method to be selected for different sample types and expected COD concentrations.


For samples containing chloride, selected methods incorporate chemistry designed to suppress chloride interference. This provides interference suppression up to 1,000 mg/L chloride for Low and Medium Range methods and up to 10,000 mg/L for the High Range method.


Mercury-free ST-COD tube tests are also available for applications where chloride interference is not present, providing an alternative option for suitable water samples.

Key Features

  • Complete solution for routine COD analysis
  • COD measurement from 2 mg/L with the Very Low Range (VLR) method
  • Ready-to-use, prefilled ST-COD tube tests
  • Straightforward sealed-tube digestion method
  • Accurate, repeatable photometric measurement
  • Multiple measuring ranges for different water samples
  • Mercury-free tube tests available for suitable applications
  • Chloride interference suppression up to 1,000 mg/L for LR and MR methods
  • Chloride interference suppression up to 10,000 mg/L for the HR method
  • Suitable for laboratory and field-based water analysis

Applications

  • Wastewater Treatment
  • Raw Water Monitoring
  • Boiler Water
  • Cooling Water
  • Industrial Process Water
  • Environmental Water Analysis

   Order Code   Parameter Test Parameter Measuring Range
 280240 COD Set-Up MD50COD RH TT
COD LMR TT 
COD LR TT
COD MR TT
COD VLR TT		0.2 - 15 g/L O2
15 - 300 mg/L O2
3 - 150 mg/L O2
20 - 1500 mg/L O2
2.0 - 60 mg/L O2

Reagents

   Order Code TitleMeasuring RangePack Size
 2420710 COD LR/25 - Mercury Free
3 - 150 mg/L O2
25
2420711 COD MR/25 - Mercury Free20 - 1500 mg/L O2 25
 2420712  COD HR/25 - Mercury Free 0.2 - 15 g/L O2 25

MD50 Brochure

Product Codes