ASTM D513-16
(Test Method)Standard Test Methods for Total and Dissolved Carbon Dioxide in Water
Standard Test Methods for Total and Dissolved Carbon Dioxide in Water
SIGNIFICANCE AND USE
4.1 Carbon dioxide is a respiration product of plants and animals and a decomposition product of organic matter and certain minerals. The atmosphere averages about 0.04 vol % of CO2. Surface waters generally contain less than 10 mg/L, except at local points of abnormal organic or mineral decomposition; however, underground water, particularly deep waters, may contain several hundred mg/L.
4.2 When dissolved in water, CO2 contributes significantly to corrosion of water-handling systems. This is particularly troublesome in steam condensate systems. Loss of CO2 from an aqueous system can disturb the carbonate equilibrium and result in calcite encrustation of confining surfaces. Scaling of water heaters is a good example. Because of the delicate balance between corrosion and encrustation tendencies, much care must be given to control of CO2 and related species in water systems. Recarbonation of municipal supplies during final stages of softening and amine neutralization of steam condensate are applied for these purposes.
SCOPE
1.1 These test methods cover the measurement of total or dissolved carbon dioxide present as carbon dioxide (CO2), carbonic acid, bicarbonate ion, and carbonate ion in water:
Range
Sections
Test Method A (Gas Sensing Electrode)
2 to 800 mg/L
8 to 15
Test Method B (CO2 Evolution, Coulometric Titration)
5 to 800 mg/L
16 to 24
1.2 Carbon dioxide may also be detected from carbonates present in particulates in samples.
1.3 Test Method A is applicable to various natural waters and brines.
1.4 Test Method B is applicable to natural waters, brines, and various industrial waters as delineated in 16.4.
1.5 It is the user's responsibility to ensure the validity of these test methods on waters of untested matrices.
1.6 Several test methods were discontinued from this standard in 1988. Refer to Appendix X1 for historical information.
1.7 The values stated in SI units are to be regarded as standard. No other units of measurement are included in this standard.
1.8 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.
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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: D513 − 16
Standard Test Methods for
1
Total and Dissolved Carbon Dioxide in Water
This standard is issued under the fixed designation D513; 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* D1129 Terminology Relating to Water
D1193 Specification for Reagent Water
1.1 These test methods cover the measurement of total or
D1293 Test Methods for pH of Water
dissolved carbon dioxide present as carbon dioxide (CO ),
2
D2777 Practice for Determination of Precision and Bias of
carbonic acid, bicarbonate ion, and carbonate ion in water:
Applicable Test Methods of Committee D19 on Water
Range Sections
D3370 Practices for Sampling Water from Closed Conduits
Test Method A (Gas Sensing Electrode) 2 to 800 mg/L 8 to 15
Test Method B (CO Evolution, Coulometric 5 to 800 mg/L 16 to 24 D5847 Practice for Writing Quality Control Specifications
2
Titration)
for Standard Test Methods for Water Analysis
1.2 Carbon dioxide may also be detected from carbonates
E200 Practice for Preparation, Standardization, and Storage
present in particulates in samples. of Standard and Reagent Solutions for ChemicalAnalysis
1.3 Test Method A is applicable to various natural waters
3. Terminology
and brines.
3.1 Definitions:
1.4 Test Method B is applicable to natural waters, brines,
3.1.1 For definitions of terms used in this standard, refer to
and various industrial waters as delineated in 16.4.
Terminology D1129.
1.5 It is the user’s responsibility to ensure the validity of
these test methods on waters of untested matrices. 4. Significance and Use
1.6 Several test methods were discontinued from this stan- 4.1 Carbon dioxide is a respiration product of plants and
dard in 1988. Refer to Appendix X1 for historical information.
animals and a decomposition product of organic matter and
certain minerals.The atmosphere averages about 0.04 vol % of
1.7 The values stated in SI units are to be regarded as
CO . Surface waters generally contain less than 10 mg/L,
2
standard. No other units of measurement are included in this
except at local points of abnormal organic or mineral decom-
standard.
position; however, underground water, particularly deep
1.8 This standard does not purport to address all of the
waters, may contain several hundred mg/L.
safety concerns, if any, associated with its use. It is the
4.2 When dissolved in water, CO contributes significantly
responsibility of the user of this standard to establish appro- 2
to corrosion of water-handling systems. This is particularly
priate safety and health practices and determine the applica-
troublesome in steam condensate systems. Loss of CO from
bility of regulatory limitations prior to use. 2
an aqueous system can disturb the carbonate equilibrium and
2. Referenced Documents
result in calcite encrustation of confining surfaces. Scaling of
2
water heaters is a good example. Because of the delicate
2.1 ASTM Standards:
balance between corrosion and encrustation tendencies, much
D1066 Practice for Sampling Steam
care must be given to control of CO and related species in
2
1
water systems. Recarbonation of municipal supplies during
These test methods are under the jurisdiction of ASTM Committee D19 on
Water and are the direct responsibility of Subcommittee D19.05 on Inorganic
final stages of softening and amine neutralization of steam
Constituents in Water.
condensate are applied for these purposes.
Current edition approved June 15, 2016. Published June 2016. Originally
ɛ1
approved in 1938. Last previous edition approved in 2011 as D513 – 11 . DOI:
5. Purity of Reagents
10.1520/D0513-16.
2
For referenced ASTM standards, visit the ASTM website, www.astm.org, or
5.1 Reagent grade chemicals shall be used in all tests.
contact ASTM Customer Service at service@astm.org. For Annual Book of ASTM
Unless otherwise indicated, it is intended that all reagents shall
Standards volume information, refer to the standard’s Document Summary page on
the ASTM website. conform to the specifications of the Committee on Analytical
*A Summary of Changes section appears at the end of this standard
Copyright © ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959. United States
1
---------------------- Page: 1 ----------------------
D513 − 16
3
Reagents of the American Chemical Society. Other grades 8.2 Samples containing 2 to 800 mg/L total CO can be
2
may be used, provided it is first ascertained that the reagent
...
This document is not an ASTM standard and is intended only to provide the user of an ASTM standard an indication of what changes have been made to the previous version. Because
it may not be technically possible to adequately depict all changes accurately, ASTM recommends that users consult prior editions as appropriate. In all cases only the current version
of the standard as published by ASTM is to be considered the official document.
´1
Designation: D513 − 11 D513 − 16
Standard Test Methods for
1
Total and Dissolved Carbon Dioxide in Water
This standard is issued under the fixed designation D513; 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
ε NOTE—This test method was changed editorially in February 2012.
1. Scope*
1.1 These test methods cover the measurement of total or dissolved carbon dioxide present as carbon dioxide (CO ), carbonic
2
acid, bicarbonate ion, and carbonate ion in water:
Range Sections
Test Method A (Gas Sensing Electrode) 2 to 800 mg/L 8 to 15
Test Method B (CO Evolution, Coulometric Titration) 5 to 800 mg/L 16 to 24
2
Range Sections
Test Method A (Gas Sensing Electrode) 2 to 800 mg/L 8 to 15
Test Method B (CO Evolution, Coulometric 5 to 800 mg/L 16 to 24
2
Titration)
1.2 Carbon dioxide may also be detected from carbonates present in particulates in samples.
1.3 Test Method A is applicable to various natural waters and brines.
1.4 Test Method B is applicable to natural waters, brines, and various industrial waters as delineated in 16.4.
1.5 It is the user’s responsibility to ensure the validity of these test methods on waters of untested matrices.
1.6 Several test methods were discontinued from this standard in 1988. Refer to Appendix X1 for historical information.
1.7 The values stated in SI units are to be regarded as standard. No other units of measurement are included in this standard.
1.8 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.
2. Referenced Documents
2
2.1 ASTM Standards:
D1066 Practice for Sampling Steam
D1129 Terminology Relating to Water
D1193 Specification for Reagent Water
D1293 Test Methods for pH of Water
D2777 Practice for Determination of Precision and Bias of Applicable Test Methods of Committee D19 on Water
D3370 Practices for Sampling Water from Closed Conduits
D5847 Practice for Writing Quality Control Specifications for Standard Test Methods for Water Analysis
E200 Practice for Preparation, Standardization, and Storage of Standard and Reagent Solutions for Chemical Analysis
3. Terminology
3.1 DefinitionsDefinitions:—For
3.1.1 For definitions of terms used in this standard, refer to Terminology D1129. definitions of terms used in these test methods,
refer to Terminology D1129.
1
These test methods are under the jurisdiction of ASTM Committee D19 on Water and are the direct responsibility of Subcommittee D19.05 on Inorganic Constituents
in Water.
Current edition approved April 1, 2011June 15, 2016. Published April 2011June 2016. Originally approved in 1938. Last previous edition approved in 20062011 as
ɛ1
D513 – 06.D513 – 11 . DOI: 10.1520/D0513-11E01.10.1520/D0513-16.
2
For referenced ASTM standards, visit the ASTM website, www.astm.org, or contact ASTM Customer Service at service@astm.org. For Annual Book of ASTM Standards
volume information, refer to the standard’s Document Summary page on the ASTM website.
*A Summary of Changes section appears at the end of this standard
Copyright © ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959. United States
1
---------------------- Page: 1 ----------------------
D513 − 16
4. Significance and Use
4.1 Carbon dioxide is a major respiration product of plants and animals and a decomposition product of organic matter and
certain minerals. The atmosphere averages about 0.04 vol % of CO . Surface waters generally contain less than 10 mg/L, except
2
at local points of abnormal organic or mineral decomposition; however, underground water, particularly deep waters, may contain
several hundred mg/L.
4.2 When dissolved in water, CO contributes significantly to corrosion of water-handling systems. This is particularly
2
troublesome in steam condensate systems. Loss of CO from an aqueous system can disturb the carbonate equilibrium and result
2
in calcite encrustation of confining surfaces. Scaling of water heaters is a good example. Because of the delicate balance between
corrosion and encrustation tendencies, much care must be given to control of CO and related species in water systems.
2
Recarbonation of munici
...
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