ASTM D8361-20
(Test Method)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
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
SIGNIFICANCE AND USE
5.1 This test method is used for determination of the carbon content of water from a variety of natural, domestic, and industrial sources. In its most common form, this test method is used to measure organic carbon as a means of monitoring organic pollutants in industrial wastewater. These measurements are also used in monitoring waste treatment processes.
5.2 The relationship of TOC to other water quality parameters such as chemical oxygen demand (COD) and total oxygen demand (TOD) is described in the literature (5).
SCOPE
1.1 This test method covers the catalyzed hydroxyl radical oxidation system for the in-stream, online (Guide D5173) or laboratory analysis of total organic carbon, total carbon and total inorganic carbon in drinking water, wastewater, industrial process water, and effluent water. It is applicable to both dissolved and suspended materials. Suspended materials and particulates up to 2 mm in diameter can be analyzed.
1.2 This test method allows for determination of TOC ≥ 1 mg/L, TC ≥ 1 mg/L, and TIC ≥ 1 mg/L. The lower and upper working ranges are restricted by instrument-dependent conditions (for example, sample volume, amount of each reactant) and can be adjusted for a wider range.
1.3 This test method can be applied for the determination of total carbon (TC) and total inorganic carbon (TIC). Volatile or purgeable organic carbon (VOC, POC) can be determined separately by this test method (see Annex A1).
1.4 This test method allows the measurement of organic and inorganic carbon concentration samples, and samples containing dissolved chlorides up to seawater chloride concentrations.
1.5 The chemical oxidation process, applied in this test method, takes place at ambient pressure and temperature by using hydroxyl radicals. The advantage of catalytic hydroxyl radical oxidation is that it is free from seawater salinity interference.
1.6 The values stated in SI units are to be regarded as standard. No other units of measurement are included in this standard.
1.7 This standard does not purport to address all of the safety concerns, if any, associated with its use. It is the responsibility of the user of this standard to establish appropriate safety, health, and environmental practices and determine the applicability of regulatory limitations prior to use. For specific hazard statements, see Section 9.
1.8 ASTM International takes no position respecting the validity of any patent rights asserted in connection with any item mentioned in this standard. Users of this standard are expressly advised that determination of the validity of any such patent rights, and the risk of infringement of such rights, are entirely their own responsibility.
1.9 This international standard was developed in accordance with internationally recognized principles on standardization established in the Decision on Principles for the Development of International Standards, Guides and Recommendations issued by the World Trade Organization Technical Barriers to Trade (TBT) Committee.
General Information
Standards Content (Sample)
This international standard was developed in accordance with internationally recognized principles on standardization established in the Decision on Principles for the
Development of International Standards, Guides and Recommendations issued by the World Trade Organization Technical Barriers to Trade (TBT) Committee.
Designation: D8361 − 20
Standard Test Method for
Total Organic Carbon in Water by Two Stage Wet Chemical
Catalyzed Hydroxyl Radical Oxidation with Infra-Red
1
Detection of Resulting Carbon Dioxide
This standard is issued under the fixed designation D8361; the number immediately following the designation indicates the year of
original adoption or, in the case of revision, the year of last revision. A number in parentheses indicates the year of last reapproval. A
superscript epsilon (´) indicates an editorial change since the last revision or reapproval.
1. Scope mine the applicability of regulatory limitations prior to use.
For specific hazard statements, see Section 9.
1.1 This test method covers the catalyzed hydroxyl radical
1.8 ASTM International takes no position respecting the
oxidation system for the in-stream, online (Guide D5173)or
validity of any patent rights asserted in connection with any
laboratory analysis of total organic carbon, total carbon and
item mentioned in this standard. Users of this standard are
total inorganic carbon in drinking water, wastewater, industrial
expressly advised that determination of the validity of any such
process water, and effluent water. It is applicable to both
patent rights, and the risk of infringement of such rights, are
dissolved and suspended materials. Suspended materials and
entirely their own responsibility.
particulates up to 2 mm in diameter can be analyzed.
1.9 This international standard was developed in accor-
1.2 This test method allows for determination of TOC ≥ 1
dance with internationally recognized principles on standard-
mg/L, TC ≥ 1 mg/L, and TIC ≥ 1 mg/L. The lower and upper
ization established in the Decision on Principles for the
working ranges are restricted by instrument-dependent condi-
Development of International Standards, Guides and Recom-
tions (for example, sample volume, amount of each reactant)
mendations issued by the World Trade Organization Technical
and can be adjusted for a wider range.
Barriers to Trade (TBT) Committee.
1.3 This test method can be applied for the determination of
total carbon (TC) and total inorganic carbon (TIC). Volatile or
2. Referenced Documents
purgeable organic carbon (VOC, POC) can be determined
2
2.1 ASTM Standards:
separately by this test method (see Annex A1).
D1129 Terminology Relating to Water
1.4 Thistestmethodallowsthemeasurementoforganicand
D1193 Specification for Reagent Water
inorganic carbon concentration samples, and samples contain-
D2777 Practice for Determination of Precision and Bias of
ing dissolved chlorides up to seawater chloride concentrations.
Applicable Test Methods of Committee D19 on Water
1.5 The chemical oxidation process, applied in this test
D3694 Practices for Preparation of Sample Containers and
method, takes place at ambient pressure and temperature by
for Preservation of Organic Constituents
using hydroxyl radicals. The advantage of catalytic hydroxyl
D4453 Practice for Handling of High Purity Water Samples
radical oxidation is that it is free from seawater salinity
D5173 Guide for On-Line Monitoring of Total Organic
interference.
Carbon in Water by Oxidation and Detection of Resulting
1.6 The values stated in SI units are to be regarded as Carbon Dioxide
standard. No other units of measurement are included in this
D5847 Practice for Writing Quality Control Specifications
standard. for Standard Test Methods for Water Analysis
1.7 This standard does not purport to address all of the
2.2 Other Standard:
safety concerns, if any, associated with its use. It is the
EN 1484 Water analysis guidelines for the determination of
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responsibility of the user of this standard to establish appro-
total organic carbon and dissolved organic carbon
priate safety, health, and environmental practices and deter-
2
For referenced ASTM standards, visit the ASTM website, www.astm.org, or
1
This test method is under the jurisdiction of ASTM Committee D19 on Water contact ASTM Customer Service at service@astm.org. For Annual Book of ASTM
and is the direct responsibility of Subcommittee D19.03 on Sampling Water and Standards volume information, refer to the standard’s Document Summary page on
Water-Formed Deposits,Analysis of Water for Power Generation and Process Use, the ASTM website.
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On-Line Water Analysis, and Surveillance of Water. WaterAnalysis Guidelines for the Determination of Total Organic Carbon and
Current edition approved Dec. 1, 2020. Published December 2020. DOI: Dissolved Organic Carbon, European Standard EN 1484, European Committee for
10.1520/D8361-20. Standardization, May 1997.
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