ASTM D6529-11
(Test Method)Standard Test Method for Operating Performance of Continuous Electrodeionization Systems on Feeds from 50–1000 μS/cm (Withdrawn 2020)
Standard Test Method for Operating Performance of Continuous Electrodeionization Systems on Feeds from 50<span class='unicode'>–</span>1000 <span class='unicode'>μ</span>S/cm (Withdrawn 2020)
SIGNIFICANCE AND USE
The CEDI devices can be used to produce deionized water from feeds of pretreated water. This test method permits the relatively rapid measurement of key performance capabilities of CEDI devices using standard sets of conditions. The data obtained can be analyzed to provide information on whether changes may have occurred in operating characteristics of the device independently of any variability in feed water characteristics or operating conditions. Under specific circumstances, this test method may also provide sufficient information for plant design.
SCOPE
1.1 This test method covers the determination of the operating characteristics of continuous electrodeionization (CEDI) devices using synthetic feed solutions and is not necessarily applicable to natural waters. This test method is a procedure applicable to solutions with a conductivity range from approximately 50 to 1000 μS/cm.
1.2 This test method covers the determination of operating characteristics under standard test conditions of CEDI devices where the electrically active transfer media therein is predominantly unregenerated. This results in more rapid achievement of steady state and shorter test time than when performing a test which requires the active media be predominantly regenerated.
1.3 This test method is not necessarily indicative of the following:
1.3.1 Long-term performance on feed waters containing foulants or sparingly soluble solutes, or both,
1.3.2 Performance on feeds of brackish water, sea water, or other high-salinity feeds,
1.3.3 Performance on synthetic industrial feed solutions, pharmaceuticals, or process solutions of foods and beverages, or,
1.3.4 Performance on feed waters less than 50 μS/cm, particularly performance relating to organic solutes, colloidal or particulate matter, or biological or microbial matter.
1.4 This test method, subject to the limitations previously described, can be applied as either an aid to predict expected deionization performance for a given feed water quality, or as a test method to determine whether performance of a given device has changed over some period of time. It is ultimately, however, the user's responsibility to ensure the validity of this test method for their specific applications.
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 or regulatory limitations prior to use.
General Information
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Designation: D6529 − 11
Standard Test Method for
Operating Performance of Continuous Electrodeionization
1
Systems on Feeds from 50–1000 µS/cm
This standard is issued under the fixed designation D6529; 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 1.5 This standard does not purport to address all of the
safety concerns, if any, associated with its use. It is the
1.1 This test method covers the determination of the oper-
responsibility of the user of this standard to establish appro-
ating characteristics of continuous electrodeionization (CEDI)
priate safety and health practices and determine the applica-
devices using synthetic feed solutions and is not necessarily
bility or regulatory limitations prior to use.
applicable to natural waters. This test method is a procedure
1.6 This international standard was developed in accor-
applicable to solutions with a conductivity range from approxi-
dance with internationally recognized principles on standard-
mately 50 to 1000 µS/cm.
ization established in the Decision on Principles for the
1.2 This test method covers the determination of operating
Development of International Standards, Guides and Recom-
characteristics under standard test conditions of CEDI devices
mendations issued by the World Trade Organization Technical
where the electrically active transfer media therein is predomi-
Barriers to Trade (TBT) Committee.
nantly unregenerated. This results in more rapid achievement
of steady state and shorter test time than when performing a
2. Referenced Documents
test which requires the active media be predominantly regen-
2
2.1 ASTM Standards:
erated.
D1125 Test Methods for Electrical Conductivity and Resis-
1.3 This test method is not necessarily indicative of the
tivity of Water
following:
D1129 Terminology Relating to Water
1.3.1 Long-term performance on feed waters containing
D1193 Specification for Reagent Water
foulants or sparingly soluble solutes, or both,
D1293 Test Methods for pH of Water
1.3.2 Performance on feeds of brackish water, sea water, or
D2777 Practice for Determination of Precision and Bias of
other high-salinity feeds,
Applicable Test Methods of Committee D19 on Water
1.3.3 Performance on synthetic industrial feed solutions,
D4189 Test Method for Silt Density Index (SDI) of Water
pharmaceuticals, or process solutions of foods and beverages,
or,
3. Terminology
1.3.4 Performance on feed waters less than 50 µS/cm,
3.1 Definitions—Fordefinitionsofgeneraltermsusedinthis
particularly performance relating to organic solutes, colloidal
test method, refer to Terminology D1129.
or particulate matter, or biological or microbial matter.
3.2 Definitions of Terms Specific to This Standard:
1.4 This test method, subject to the limitations previously
3.2.1 cell—an independently fed ion-depleting chamber
described, can be applied as either an aid to predict expected
formed by two adjacent ion-exchange membranes, or by a
deionization performance for a given feed water quality, or as
membrane and an adjacent electrode.
a test method to determine whether performance of a given
device has changed over some period of time. It is ultimately,
3.2.2 continuous electrodeionization (CEDI) device—a de-
however, the user’s responsibility to ensure the validity of this
vice that removes ionized and ionizable species from liquids
test method for their specific applications.
using electrically active media and using an electrical potential
to influence ion transport, where the ionic transport properties
of the active media are a primary sizing parameter. The CEDI
1
This test method is under the jurisdiction of ASTM Committee D19 on
Waterand is the direct responsibilities of Subcommittee D19.08 on Membranes and
Ion Exchange Materials.
2
Current edition approved Oct. 15, 2011. Published October 2011. Originally For referenced ASTM standards, visit the ASTM website, www.astm.org, or
approved in 2000. Last previous edition approved in 2000 as D6529 – 00 which was contact ASTM Customer Service at service@astm.org. For Annual Book of ASTM
withdrawn January 2008 and reinstated in October 2011. This reinstatement date Standards volume information, refer to the standard’s Document Summary page on
matches the year date after the designation. DOI: 10.1520/D6529-11. the ASTM website.
Copyright © ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959. United States
1
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D6529 − 11
devices typically comprise semipermeable ion-exchange mem- unpressurized, ported to be capable of occas
...
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.
Designation:D 6529–00 Designation: D6529 – 11
Standard Test Method for
Operating Performance of Continuous Electrodeionization
1
Systems on Feeds from 50–1000 µS/cm
This standard is issued under the fixed designation D6529; 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
1.1 This test method covers the determination of the operating characteristics of continuous electrodeionization (CEDI) devices
using synthetic feed solutions and is not necessarily applicable to natural waters. This test method is a procedure applicable to
solutions with a conductivity range from approximately 50 to 1000 µS/cm.
1.2 This test method covers the determination of operating characteristics under standard test conditions of CEDI devices where
theelectricallyactivetransfermediathereinispredominantlyunregenerated.Thisresultsinmorerapidachievementofsteadystate
and shorter test time than when performing a test which requires the active media be predominantly regenerated.
1.3 This test method is not necessarily indicative of the following:
1.3.1 Long-term performance on feed waters containing foulants or sparingly soluble solutes, or both,
1.3.2 Performance on feeds of brackish water, sea water, or other high-salinity feeds,
1.3.3 Performance on synthetic industrial feed solutions, pharmaceuticals, or process solutions of foods and beverages, or,
1.3.4 Performance on feed waters less than 50 µS/cm, particularly performance relating to organic solutes, colloidal or
particulate matter, or biological or microbial matter.
1.4 This test method, subject to the limitations previously described, can be applied as either an aid to predict expected
deionization performance for a given feed water quality, or as a test method to determine whether performance of a given device
has changed over some period of time. It is ultimately, however, the user’s responsibility to ensure the validity of this test method
for their specific applications.
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 or regulatory
limitations prior to use.
2. Referenced Documents
2
2.1 ASTM Standards:
D1125 Test Methods for Electrical Conductivity and Resistivity of Water
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
D4189 Test Method for Silt Density Index (SDI) of Water
3. Terminology
3.1 Definitions—For definitions of general terms used in this test method, refer to Terminology D 1129D1129.
3.2 Definitions of Terms Specific to This Standard:
3.2.1 cell—an independently fed ion-depleting chamber formed by two adjacent ion-exchange membranes, or by a membrane
and an adjacent electrode.
3.2.2 continuous electrodeionization (CEDI) device—a device that removes ionized and ionizable species from liquids using
electrically active media and using an electrical potential to influence ion transport, where the ionic transport properties of the
active media are a primary sizing parameter. The CEDI devices typically comprise semipermeable ion-exchange membranes and
1
This test method is under the jurisdiction ofASTM Committee D19.08 D19 on Water and is the direct responsibilities of Subcommittee D19.08 on Membranes and Ion
Exchange Materials.
Current edition approved March 10, 2000. Published May 2000.
Current edition approved Oct. 15, 2011. Published May 2000. Originally approved in 2000. Last previous edition approved in 2009 as D6529—00 which was withdrawn
January 2008 and reinstated in October 2011. This reinstatement date matches the year date after the designation. DOI: 10.1520/D6529-11.
2
For referencedASTM standards, visit theASTM website, www.astm.org, or contactASTM 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.
Copyright © ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959, United States.
1
---------------------- Page: 1 ----------------------
D6529 – 11
permanentlychargedion-e
...
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