What Is ASTM D6238 Total Oxygen Demand Water?
ASTM D6238-13 is a standardized test method used to determine the total oxygen demand (TOD) in water samples. TOD represents the amount of oxygen required to oxidize organic and inorganic substances present, providing a rapid and comprehensive measure of overall water contamination. It is widely used for assessing water quality and pollution levels.
The method utilizes high-temperature combustion to oxidize substances in the sample, with oxygen consumption measured to quantify demand. Compared to conventional methods, it offers faster results and broader detection of oxidizable materials, making it suitable for monitoring and control of water quality.
Applications and Benefits of ASTM D6238 Total Oxygen Demand Water Testing
Scope
ASTM D6238-13 defines procedures for measuring total oxygen demand in water using combustion-based techniques, ensuring accurate and reproducible results for various water types.
- Applicable to potable, surface, and wastewater samples
- Measures both organic and inorganic oxidizable substances
- Uses high-temperature combustion oxidation
- Suitable for rapid water quality assessment
- Provides quantitative oxygen demand values
Applications
- Water quality monitoring
- Pollution assessment studies
- Industrial discharge evaluation
- Environmental compliance monitoring
- Process control in treatment systems
- Research and laboratory analysis
Benefits
- Rapid determination of oxygen demand
- Measures total oxidizable content
- High accuracy and reproducibility
- Suitable for diverse water samples
- Supports environmental monitoring
- Reduces analysis time compared to traditional methods
Our ASTM D6238 Testing Procedure
Sample Introduction
Water sample is injected into the combustion system under controlled conditions.
1High-Temperature Oxidation
Sample is combusted to oxidize all organic and inorganic substances.
2Oxygen Consumption Measurement
Oxygen used during oxidation is precisely measured by the instrument.
3Result Calculation
Total oxygen demand is calculated based on oxygen consumption data.
4ASTM D6238 Test Parameters and Requirements
| Parameter | Details |
|---|---|
| Property Measured | Total oxygen demand representing oxidizable substances present in water. |
| Material Type | Water samples including potable, surface, and wastewater. |
| Method | High-temperature combustion with oxygen consumption measurement. |
| Measurement Unit | Reported in milligrams per liter (mg/L) of oxygen demand. |
| Output | Quantitative TOD value indicating total oxidizable load. |
| Sensitivity | High sensitivity for detecting low to high contamination levels. |
- Total Oxygen Demand analyzer
- High-temperature combustion furnace
- Oxygen detection system
- Sample injection system
- Calibration gas setup
- Analytical balance
Equipment and Instrumentation Used for ASTM D6238 Testing
What You Receive: Test Report, Data, and Certification
- Total oxygen demand value (mg/L)
- Detailed analytical report
- Sample identification and conditions
- Calibration and QC data
- Instrument output records
- Compliance and interpretation data
ASTM D6238 Total Oxygen Demand Water FAQs
ASTM D6238-13 is used to determine total oxygen demand in water, providing a rapid and comprehensive measure of all oxidizable substances, which helps assess overall water pollution and quality effectively.
Total oxygen demand indicates the total amount of oxygen required to oxidize organic and inorganic compounds present in water, reflecting the overall pollution load and contamination level of the sample.
Unlike COD and BOD, TOD measures total oxidizable substances using combustion, providing faster and more complete oxidation results, including compounds that may not be fully captured in conventional chemical or biological methods.
The method is applicable to various water types, including drinking water, surface water, industrial wastewater, and treated effluents, making it versatile for different monitoring and analysis requirements.
TOD testing provides a quick and comprehensive measure of pollution, helping identify contamination levels, evaluate treatment efficiency, and support environmental compliance and regulatory monitoring programs.
Total Oxygen Demand (TOD) testing measures the amount of oxygen required to oxidize substances in water and wastewater. A sample is injected into a high-temperature combustion chamber, typically around 900°C, where oxidizable compounds react with oxygen. An oxygen sensor measures the decrease in oxygen concentration, which is used to calculate TOD. The results help assess wastewater pollution levels and monitor industrial treatment processes.
Why Choose Infinita Lab for Total Oxygen Demand Water Testing?
When your Total Oxygen Demand Water results have to hold up - for compliance, a customer audit, or an engineering decision - ASTM D6238 accuracy and an unbiased third-party report matter more than price. Infinita Lab routes your ASTM D6238 total oxygen demand water testing to ISO/IEC 17025-accredited U.S. partner labs with hands-on method experience, so you get defensible data, transparent reporting, and turnaround times built around your project deadline - not ours.
Looking for an Accredited Partner for ASTM D6238 Total Oxygen Demand Water Testing?
Send query us at hello@infinitalab.com or call us at (888) 878-3090 to learn more about our services and how we can support you.
