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ASTM D6317-98(2009)

(Test Method)

Standard Test Method for Low Level Determination of Total Carbon, Inorganic Carbon and Organic Carbon in Water by Ultraviolet, Persulfate Oxidation, and Membrane Conductivity Detection

Standard Test Method for Low Level Determination of Total Carbon, Inorganic Carbon and Organic Carbon in Water by Ultraviolet, Persulfate Oxidation, and Membrane Conductivity Detection

SIGNIFICANCE AND USE
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 impurities in high purity process water used in industries such as nuclear power, pharmaceutical, and electronics.
SCOPE
1.1 This test method covers the determination of total carbon (TC), inorganic carbon (IC), and total organic carbon (TOC) in water in the range from 10 to 1000 μg/L of carbon. This method is for laboratory or grab sample applications and has been subjected to an interlaboratory study under the guidelines of D2777. Test Method D5997 can be used for on-line determinations. The test method utilizes persulfate or ultraviolet oxidation of organic carbon, or both coupled with a CO2  selective membrane to recover the CO2  into deionized water. The change in conductivity of the deionized water is measured and related to carbon concentration in the oxidized sample. Inorganic carbon is determined in a similar manner without the oxidation step. In both cases, the sample is acidified to facilitate CO2  recovery through the membrane. The relationship between the conductivity measurement and carbon concentration is described by a set of chemometric equations for the chemical equilibrium of CO2, HCO3–, and H+, and the relationship between the ionic concentrations and the conductivity. The chemometric model includes the temperature dependence of the equilibrium constants and the specific conductances resulting in linear response of the method over the stated range of TOC. See Test Method D4519 for a discussion of the measurement of CO2  by conductivity.
1.2 This test method has the advantage of a very high sensitivity detector that allows very low detection levels on relatively small volumes of sample. Also, use of two measurement channels allows determination of CO2  in the sample independently of organic carbon. Isolation of the conductivity detector from the sample by the CO2  selective membrane results in a very stable calibration, with minimal interferences.  
1.3 This test method was used successfully with reagent water spiked with various organic materials. It is the user's responsibility to ensure the validity of this test method for waters of untested matrices.  
1.4 In addition to laboratory analyses, this test method may be adapted to on line monitoring. See Test Method D5997.
1.5 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 and health practices and determine the applicability of regulatory limitations prior to use.

General Information

Status
Historical
Publication Date
30-Sep-2009
ICS
13.060.50 - Examination of water for chemical substances
Technical Committee
D19 - Water
Drafting Committee
D19.03 - Sampling Water and Water-Formed Deposits, Analysis of Water for Power Generation and Process Use, On-Line Water Analysis, and Surveillance of Water
Current Stage
Ref Project

Relations

Replaced By
ASTM D6317-15 - Standard Test Method for Low Level Determination of Total Carbon, Inorganic Carbon and Organic Carbon in Water by Ultraviolet, Persulfate Oxidation, and Membrane Conductivity Detection
Effective Date
01-May-2015

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ASTM D6317-98(2009) - Standard Test Method for Low Level Determination of Total Carbon, Inorganic Carbon and Organic Carbon in Water by Ultraviolet, Persulfate Oxidation, and Membrane Conductivity DetectionASTM D6317-98(2009) - Standard Test Method for Low Level Determination of Total Carbon, Inorganic Carbon and Organic Carbon in Water by Ultraviolet, Persulfate Oxidation, and Membrane Conductivity Detection
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ASTM D6317-98(2009) - Standard Test Method for Low Level Determination of Total Carbon, Inorganic Carbon and Organic Carbon in Water by Ultraviolet, Persulfate Oxidation, and Membrane Conductivity Detection
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Standards Content (Sample)

NOTICE: This standard has either been superseded and replaced by a new version or withdrawn.
Contact ASTM International (www.astm.org) for the latest information
Designation: D6317 − 98(Reapproved 2009)
Standard Test Method for
Low Level Determination of Total Carbon, Inorganic Carbon
and Organic Carbon in Water by Ultraviolet, Persulfate
1
Oxidation, and Membrane Conductivity Detection
This standard is issued under the fixed designation D6317; 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 responsibility to ensure the validity of this test method for
waters of untested matrices.
1.1 This test method covers the determination of total
carbon (TC), inorganic carbon (IC), and total organic carbon 1.4 In addition to laboratory analyses, this test method may
(TOC) in water in the range from 10 to 1000 µg/L of carbon. be adapted to on line monitoring. See Test Method D5997.
This method is for laboratory or grab sample applications and
1.5 This standard does not purport to address all of the
has been subjected to an interlaboratory study under the
safety concerns, if any, associated with its use. It is the
guidelines of D2777. Test Method D5997 can be used for
responsibility of the user of this standard to establish appro-
on-line determinations. The test method utilizes persulfate or
priate safety and health practices and determine the applica-
ultraviolet oxidation of organic carbon, or both coupled with a
bility of regulatory limitations prior to use.
CO selective membrane to recover the CO into deionized
2 2
water. The change in conductivity of the deionized water is
2. Referenced Documents
measured and related to carbon concentration in the oxidized
2
2.1 ASTM Standards:
sample. Inorganic carbon is determined in a similar manner
D1129 Terminology Relating to Water
without the oxidation step. In both cases, the sample is
D1192 Guide for Equipment for Sampling Water and Steam
acidifiedtofacilitateCO recoverythroughthemembrane.The
2 3
in Closed Conduits (Withdrawn 2003)
relationshipbetweentheconductivitymeasurementandcarbon
D1193 Specification for Reagent Water
concentration is described by a set of chemometric equations
D2777 Practice for Determination of Precision and Bias of
– +
for the chemical equilibrium of CO , HCO , and H , and the
2 3
Applicable Test Methods of Committee D19 on Water
relationship between the ionic concentrations and the conduc-
D3370 Practices for Sampling Water from Closed Conduits
tivity. The chemometric model includes the temperature de-
D4210 Practice for Intralaboratory Quality Control Proce-
pendence of the equilibrium constants and the specific conduc-
dures and a Discussion on Reporting Low-Level Data
tancesresultinginlinearresponseofthemethodoverthestated
3
(Withdrawn 2002)
range of TOC. See Test Method D4519 for a discussion of the
D5997 Test Method for On-Line Monitoring of Total
measurement of CO by conductivity.
2
Carbon, Inorganic Carbon in Water by Ultraviolet, Persul-
1.2 This test method has the advantage of a very high
fate Oxidation, and Membrane Conductivity Detection
sensitivity detector that allows very low detection levels on
D4519 Test Method for On-Line Determination of Anions
relatively small volumes of sample.Also, use of two measure-
and Carbon Dioxide in High Purity Water by Cation
ment channels allows determination of CO in the sample
2 Exchange and Degassed Cation Conductivity
independently of organic carbon. Isolation of the conductivity
detector from the sample by the CO selective membrane
3. Terminology
2
results in a very stable calibration, with minimal interferences.
3.1 Definitions—For definitions of terms used in this test
1.3 This test method was used successfully with reagent
method, refer to Terminology D1129.
water spiked with various organic materials. It is the user’s
3.2 Definitions of Terms Specific to This Standard:
1
This test method is under the jurisdiction of ASTM Committee D19 on Water
2
and is the direct responsibility of Subcommittee D19.03 on Sampling Water and For referenced ASTM standards, visit the ASTM website, www.astm.org, or
Water-Formed Deposits, Analysis of Water for Power Generation and Process Use, contact ASTM Customer Service at service@astm.org. For Annual Book of ASTM
On-Line Water Analysis, and Surveillance of Water. Standards volume information, refer to the standard’s Document Summary page on
Current edition approved Oct. 1, 2009. Published November 2009. Originally the ASTM website.
3
approved in 1998. Last previous edition approved in 2004 as D6317 – 98 (2004). The last approved version of this historical standard is referenced on
DOI: 10.1520/D6317-98R09. www.astm.org.
Copyright © ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA
...

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1.1 This test method covers a protocol for capturing, extracting and quantifying the cellular adenosine triphosphate (cATP) content associated with microorganisms normally found in laboratory cultures and waters in plankton and periphyton samples from waters.  
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5.1 Chlorine is added to potable water, waste water, and industrial water for a variety of purposes. Some of these purposes are:  
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5.1 This test method has been developed by U.S. EPA Region 5 Chicago Regional Laboratory (CRL).  
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1.1 This test method covers the determination of hardness in water by titration with potentiometric detection via optical sensor. This test method is applicable to waters that are free of chemicals that will complex calcium or magnesium. The lower detection limit of this test method is approximately 2 mg/L to 5 mg/L as CaCO3; the upper limit can be extended to all concentrations by sample dilution. It is possible to differentiate between hardness due to calcium ions and that due to magnesium ions by this test method.  
1.2 This test method is applicable to both colorless and colored water samples including groundwater, surface water, wastewater, and drinking water.  
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Standard Test Method for Determination of Select Pesticides in Water by Multiple Reaction Monitoring Liquid Chromatography Tandem Mass Spectrometry

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5.2 This method has been single-laboratory validated in reagent water and surface waters (Tables 12-14).
SCOPE
1.1 This test method covers a method for analysis of selected pesticides in a water matrix by filtration followed with liquid chromatography/electrospray ionization tandem mass spectrometry analysis. The samples are prepared in 20 % methanol, filtered, and analyzed by liquid chromatography/tandem mass spectrometry. This method was developed for an agricultural run-off study, not for low level analysis of pesticides in drinking water. This method may be modified for lower level analysis. The analytes are qualitatively and quantitatively determined by this method. This method adheres to multiple reaction monitoring (MRM) mass spectrometry.  
1.2 A full collaborative study to meet the requirements of Practice D2777 has not been completed. This standard contains single-operator precision and bias based on single-operator data. Publication of standards that have not been fully validated is done to make the current technology accessible to users of standards, and to solicit additional input from the user community.  
1.3 A reporting limit check sample (RLCS) is analyzed during every batch to ensure that if an analyte was present in a sample at or near the reporting limit it would be positively identified and accurately quantitated within set quality control limits. A method detection limit (MDL) study was not done for this method, the method detection limits would be much lower than the reporting limits in this method and would be irrelevant. A RLCS was determined to be more applicable for this standard. If this method is adapted to report much lower or near the MDL then a MDL study would be warranted.  
1.4 Units—The values stated in SI units are to be regarded as standard. No other units of measurement are included in this standard.  
1.5 The Reporting Range for the target analytes are listed in Table 1.  
1.5.1 The reporting limit in this test method is the minimum value below which data are documented as non-detects. The reporting limit is calculated from the concentration of the Level 1 calibration standard as shown in Table 6 after taking into account an 8 mL water sample volume and a final diluted sample volume of 10 mL (80 % water/20 % methanol).  
1.6 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.  
1.7 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.

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