Highly advanced on-line TOC Analyzer excels in a wide range of applications

The TOC-4200 is a high-performance on-line TOC analyzer, based on the proven 680°C Catalyst-aided Combustion technology. This established technology is featured in a large installed base of Shimadzu Total Organic Carbon Analyzers throughout the world, and has been applied to a broad field of industries.

Diverse Applications

Supports monitoring TOC removal rate based on EPA Regulations

  • Calculates TOC removal rate based on the United States EPA regulations
    (Part IV 40 CFR Part 9, 141 and 142, 1998)
    (when a 2- or more-stream switching option is provided)


Total pollutant load control regulation applications (organic pollution load) -Japanese regulation


  • Converting the measured TOC values allows applications to COD total volume control. (*1) TOC → COD conversion functions are installed as standard.
  • Reading flow rate signals from a flow meter (*2) permits COD load conversion calculations.


Wastewater treatment plant influent (upstream monitoring) and effluent


  • Measurements at a short measuring cycle (4 minutes minimum) rapidly capture dramatic changes in organic matter or abnormal effluent.
  • The powerful oxidation capacity of a combustion-type analyzer can detect organic matter that cannot be captured using a UV meter.
  • The short measuring cycle and powerful oxidation, combined with switching between up to six flow lines, offer detailed monitoring of treatment plants.


Monitoring of river water sampled at water purification plants and treated water (tap water)


  • Monitoring changes in river water quality due to rainfall and other factors to provide control indicators for treatment processes.
  • Permits simultaneous monitoring of treated tap water.


Plant water (washing water, cooling water, recovered water, boiler water, condensate, etc.)


  • Continuous monitoring of water used in a plant.

  • Continuous monitoring of pure boiler water assists in the detection of anomalies, such as damaged pipes.

  • The short measuring cycle (4 minutes minimum) of the combustion-type TOC analyzer achieves more rapid detection of anomalies.

*1 The TOC-COD conversion formula must be determined separately.
*2 With attached option


TOC-4200 is granted MCERTS accreditation

The TOC-4200 online total organic carbon analyser has been granted MCERTS accreditation based upon the performance standards and test procedures set for continuous water monitoring equipment.

MCERTS is the Environment Agency of England & Wales (UK) Monitoring Certification Scheme. It provides the framework for businesses to meet quality requirements. Compliance with MCERTS gives the Environment Agency confidence in the monitoring of emissions to the environment.

MCERTS is quickly becoming an internationally required performance and reliability standard by companies and authorities around the world that want to ensure that they are doing their utmost to protect the environment around them by using equipment with this accreditation. Requirements to gain this certificate include laboratory testing and a 3-month field test under real conditions. The TOC-4200 achieved 100% uptime in the field test highlighting its robustness.

The TOC-4200 is the only online TOC analyser that utilises catalytic combustion oxidation technology, with MCERTS accreditation, available on the market. This technology is a clear advantage for anyone interested in analysing water and effluent that has a high salt content, suspended solids, or particulates, and the most complex of organic compounds.

The certificate (MC160311/00) covers the ranges, 0-100, 0-500, 0-1000 and 0-10,000 mg/L of Total Organic Carbon. Utilising the automatic conversion function of the TOC-4200 to determine COD values.


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