ASTM D8361
Standard Test Method for Total Organic Carbon in Water by Two Stage Wet Chemical Catalyzed Hydroxyl Radical Oxidation with Infra-Red Detection of Resulting Carbon Dioxide
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About This Item
ASTM D8361 is a technical standard for measuring total organic carbon in water using a two-stage wet chemical catalyzed hydroxyl radical oxidation process with infra-red detection of the resulting carbon dioxide. It provides a structured approach to carbon analysis in water testing, helping users obtain consistent results from a defined oxidation and detection method. This makes the standard useful for laboratories and quality programs that need a reliable ASTM standard for TOC measurement.
Purpose of ASTM D8361
The purpose of ASTM D8361 is to define a test method for determining total organic carbon in water by converting organic material through catalyzed hydroxyl radical oxidation and then measuring the carbon dioxide produced with infra-red detection. As described by the official title, the method focuses on analytical measurement rather than treatment or process control. It is intended to support repeatable testing, clear method selection, and a common technical basis for evaluating organic carbon levels in water samples.
Common use cases of ASTM D8361
This standard is commonly used in laboratory water analysis where total organic carbon needs to be measured with a defined oxidation and detection workflow. It may be selected for quality control testing, method comparison, or routine monitoring of water samples in analytical settings. ASTM D8361 is also relevant when a standardized approach is needed for procurement, specification review, or compliance-oriented testing tied to water chemistry and carbon measurement.
Why ASTM D8361 matters
ASTM D8361 matters because it helps create consistency in TOC testing by describing a specific analytical method for converting organic carbon and detecting the resulting carbon dioxide. That consistency supports better comparison of results across laboratories, instruments, and testing programs. For organizations that rely on water analysis data, the standard can reduce ambiguity, improve confidence in reported results, and support sound decisions in quality control and product evaluation.
- Water total organic carbon testing
- Two-stage wet chemical oxidation method
- Infra-red carbon dioxide detection
- Laboratory quality control and comparison
- Standardized analytical workflow
- Publication Date: 2020-12-30
- Publisher: ASTM
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