COLO.Science — WATER QUALITY / COD ANALYSIS — COD100
COD100 Laboratory COD Analyzer
COD100 laboratory COD analyzer is a compact benchtop system for
Chemical Oxygen Demand (COD) determination in water and wastewater samples. The analyzer uses a
closed tube dichromate digestion workflow with spectrophotometric detection and is designed in line with
ISO 15705:2002 and EPA 410.4. With dual COD ranges, 420 / 620 nm optical detection,
two-point calibration, 200 data sets and USB export, COD100 is suitable for environmental laboratories, wastewater treatment plants,
industrial wastewater monitoring and routine laboratory COD testing.
| Overview | PDF Spec | Video Soon | Quote |
COLO.SCIENCE — LABORATORY COD ANALYSIS SYSTEM
Laboratory COD analyzer for closed tube digestion and spectrophotometric detection
The COD100 laboratory COD analyzer is designed for laboratories that need standardized, repeatable and documented Chemical Oxygen Demand testing. It supports low-range and high-range COD determination using closed tube dichromate digestion followed by optical measurement.
When used with the COD100R digestion reactor, the system supports efficient batch preparation of up to 21 samples, helping laboratories improve throughput while keeping the workflow suitable for environmental, wastewater and industrial water testing.
Key features
- Laboratory COD analyzer for Chemical Oxygen Demand testing in water and wastewater samples.
- Dual COD range: 0–150 mg/L and 150–1500 mg/L.
- Closed tube dichromate digestion with spectrophotometric detection.
- Detection wavelengths: 420 nm for low range and 620 nm for high range.
- Performance: ±8% accuracy and ≤3% repeatability.
- Data workflow: up to 200 data sets and USB export.
Suitable for
- Environmental laboratories and water quality control.
- Wastewater treatment plants and process monitoring.
- Industrial wastewater and effluent testing.
- Surface water contamination load assessment.
- Routine laboratory COD determination according to internal SOPs.
- Laboratories requiring batch digestion with a 21-position reactor.
TECHNICAL SPECIFICATIONS — COD100 LABORATORY COD ANALYZER
| Model | COD100 |
| Product type | Laboratory COD analyzer |
| Measurement parameter | Chemical Oxygen Demand (COD) |
| Intended sample types | Water samples, wastewater, surface water and industrial effluent |
| Compliance reference | Designed in line with ISO 15705:2002 and EPA 410.4 |
| Low-range COD | 0–150 mg/L |
| High-range COD | 150–1500 mg/L |
| Detection wavelength — low range | 420 nm |
| Detection wavelength — high range | 620 nm |
| Detection principle | Spectrophotometric measurement after closed tube dichromate digestion |
| Accuracy | ±8% |
| Repeatability | ≤3% |
| Calibration concept | Two-point calibration using standard solutions |
| Memory capacity | Up to 200 sets of data |
| Data export | USB interface |
| Analyzer dimensions / weight | 315 × 225 × 100 mm · approx. 2 kg |
| Reactor accessory | COD100R digestion reactor |
| Reactor capacity | Up to 21 samples simultaneously |
| Reactor temperature range | 100–165 °C |
| Reactor digestion time | 0–120 minutes |
| Technical specification PDF | Open COD100 PDF technical specification |
Final measurement performance depends on reagent chemistry, digestion temperature and time, sample matrix, calibration standards, vial handling, optical cleanliness and laboratory SOP. Final delivered configuration should be confirmed through the official COLO.Science quotation.
Closed tube digestion, optical detection and data management
Standardized COD workflow
COD100 follows a closed tube dichromate digestion concept, where organic compounds are oxidized under acidic conditions and the generated optical signal is used for COD determination.
Dual-range flexibility
The analyzer supports both low-range and high-range COD testing, helping laboratories handle different contamination loads with one compact measurement platform.
GLP-oriented data workflow
Up to 200 data sets and USB export support daily result review, reporting and traceable laboratory documentation.
COD100R REACTOR AND STANDARD DELIVERY
Digest up to 21 samples for efficient COD laboratory workflows
- COD100 laboratory COD analyzer main unit
- COD100R digestion reactor accessory, depending on selected configuration
- 21-position digestion workflow for 16 mm COD tubes / vials
- Adjustable reactor temperature from 100–165 °C
- Configurable digestion time from 0–120 minutes
- USB export and data handling support on the analyzer
Exact delivery set, reactor inclusion, COD vials, reagents, calibration standards and documentation depend on the final quotation.
COLO.SCIENCE KNOWLEDGE
Learn more about COD analysis and water quality testing
Explore COLO.Science resources covering COD measurement, wastewater analysis, closed tube digestion, environmental monitoring and laboratory water quality workflows.
Applications and laboratory value
Environmental laboratories
COD100 supports routine COD determination for environmental water quality control, sample evaluation and laboratory-based compliance workflows.
Water treatment facilities
Suitable for process monitoring and verification tasks where repeatable digestion-based COD analysis is required.
Industrial wastewater monitoring
Useful for laboratories and industrial facilities that need standardized COD testing of effluent streams and process-related water samples.
Surface water testing
Applicable to routine assessment of contamination load and oxygen demand indicators in surface water samples.
How to choose the correct COD100 configuration
When selecting the COD100 laboratory COD analyzer, the expected COD concentration range, sample type, number of samples per batch, required digestion workflow, reporting needs and internal SOP requirements should be defined first.
COLO.Science can help confirm whether the laboratory requires analyzer-only configuration or a complete analyzer plus COD100R digestion reactor setup, including matching reagents, COD tubes, standards and documentation.
COD100 laboratory COD analyzer for routine wastewater and water quality analysis
The COD100 laboratory COD analyzer is useful when a laboratory needs a compact and standardized COD testing platform for water and wastewater samples. Dual range measurement, closed tube digestion, USB data export and optional 21-position digestion support make it practical for routine laboratory workflows.
COD result quality depends on reagent selection, digestion conditions, standard calibration, sample preparation, chloride interference control where relevant, vial handling and method discipline. COD100 provides the measurement platform, while COLO.Science can help define the correct COD100 configuration for the laboratory workflow.
Configuration notice
COD analyzers may be delivered in different configurations depending on selected reactor, reagents, COD tubes, standards, accessories and application requirements. The official quotation defines the final scope of supply. Website content is provided for general product presentation and may not represent the exact delivered configuration. Specifications may change without notice.