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ASTM D6529-00

(Test Method)

Standard Test Method for Operating Performance of Continuous Electrodeionization Systems on Feeds from 50-1000 uS/cm (Withdrawn 2009)

Standard Test Method for Operating Performance of Continuous Electrodeionization Systems on Feeds from 50-1000 uS/cm (Withdrawn 2009)

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 S/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 S/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.
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.
WITHDRAWN RATIONALE
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.
Formerly under the jurisdiction of Committee D19 on Water, this practice was withdrawn in January 2009 in accordance with section 10.5.3.1 of the Regulations Governing ASTM Technical Committees, which requires that standards shall be updated by the end of the eighth year since the last approval date.

General Information

Status
Historical
Publication Date
09-Mar-2000
Withdrawal Date
27-Jan-2009
ICS
25.220.20 - Surface treatment
Technical Committee
D19 - Water
Drafting Committee
D19.08 - Membranes and Ion Exchange Materials
Current Stage
Ref Project

Relations

Referred By
ASTM D1193-06(2018) - Standard Specification for Reagent Water
Effective Date
10-Mar-2000

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ASTM D6529-00 - Standard Test Method for Operating Performance of Continuous Electrodeionization Systems on Feeds from 50-1000 uS/cm (Withdrawn 2009)ASTM D6529-00 - Standard Test Method for Operating Performance of Continuous Electrodeionization Systems on Feeds from 50-1000 uS/cm (Withdrawn 2009)
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ASTM D6529-00 - Standard Test Method for Operating Performance of Continuous Electrodeionization Systems on Feeds from 50-1000 uS/cm (Withdrawn 2009)
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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: D 6529 – 00
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 D 6529; 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 (e) indicates an editorial change since the last revision or reapproval.
1. Scope 2. Referenced Documents
2
1.1 This test method covers the determination of the oper- 2.1 ASTM Standards:
ating characteristics of continuous electrodeionization (CEDI) D 1125 Test Methods for Electrical Conductivity and Re-
devices using synthetic feed solutions and is not necessarily sistivity of Water
applicable to natural waters. This test method is a procedure D 1129 Terminology Relating to Water
applicable to solutions with a conductivity range from approxi- D 1193 Specification for Reagent Water
mately 50 to 1000 µS/cm. D 1293 Test Methods for pH of Water
1.2 This test method covers the determination of operating D 2777 Practice for Determination of Precision and Bias of
characteristics under standard test conditions of CEDI devices Applicable Test Methods of Committee D19 on Water
where the electrically active transfer media therein is predomi- D 4189 Test Method for Silt Density Index (SDI) of Water
nantly unregenerated. This results in more rapid achievement
3. Terminology
of steady state and shorter test time than when performing a
3.1 Definitions—For definitions of general terms used in
test which requires the active media be predominantly regen-
erated. this test method, refer to Terminology D 1129.
3.2 Definitions of Terms Specific to This Standard:
1.3 This test method is not necessarily indicative of the
following: 3.2.1 cell—an independently fed ion-depleting chamber
formed by two adjacent ion-exchange membranes, or by a
1.3.1 Long-term performance on feed waters containing
foulants or sparingly soluble solutes, or both, membrane and an adjacent electrode.
3.2.2 continuous electrodeionization (CEDI) device—a de-
1.3.2 Performance on feeds of brackish water, sea water, or
other high-salinity feeds, vice that removes ionized and ionizable species from liquids
using electrically active media and using an electrical potential
1.3.3 Performance on synthetic industrial feed solutions,
to influence ion transport, where the ionic transport properties
pharmaceuticals, or process solutions of foods and beverages,
or, of the active media are a primary sizing parameter. The CEDI
devices typically comprise semipermeable ion-exchange mem-
1.3.4 Performance on feed waters less than 50 µS/cm,
particularly performance relating to organic solutes, colloidal branes and permanently charged ion-exchange media. Ex-
amples include continuous deionization, electrodiaresis, and
or particulate matter, or biological or microbial matter.
1.4 This test method, subject to the limitations previously packed-bed or filled-cell electrodialysis.
3.2.3 current effıciency—the ratio, expressed in percent, of
described, can be applied as either an aid to predict expected
deionization performance for a given feed water quality, or as the net transfer of ionized and ionizable solutes per unit cell
within a CEDI device, expressed in chemical equivalents
a test method to determine whether performance of a given
device has changed over some period of time. It is ultimately, transferred per unit time, to the number of coulombs trans-
ferred from an external dc power source to each electrode pair,
however, the user’s responsibility to ensure the validity of this
test method for their specific applications. expressed in faradays per unit time. Calculation of current
efficiency is described in 9.2.
1.5 This standard does not purport to address all of the
safety concerns, if any, associated with its use. It is the
4. Summary of Test Method
responsibility of the user of this standard to establish appro-
4.1 This test method is used to determine performance
priate safety and health practices and determine the applica-
capabilities of CEDI devices with regard to extent of ion
bility or regulatory limitations prior to use.
1 2
This test method is under the jurisdiction of ASTM Committee D19.08 on For referenced ASTM standards, visit the ASTM website, www.astm.org, or
Water and is the direct responsibilities of Subcommittee D19.08 on Membranes and contact ASTM Customer Service at service@astm.org. For Annual Book of ASTM
Ion Exchange Materials. Standards volume information, refer to the standard’s Document Summary page on
Current edition approved March 10, 2000. Published May 2000. the ASTM website.
Copyright © ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA
...

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5.1 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.
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5.1 The water-break test as described in this test method is rapid, nondestructive, and may be used for control and evaluation of processes for the removal of hydrophobic contaminants. A water-break “free” test is commonly used for in-process verification of the absence of surface contaminants on metal surfaces that may interfere with subsequent surface treatments such as priming, conversion coating, anodizing, plating, or adhesive bonding  
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5.4.1 Devices for in situ measurement of contact angle are available. These devices are limited to a small measurement surface area and may not reflect the cleanliness condition of a larger surface. For larger surface areas, localized contact angle measurement, or other quantitative inspection, combined with water-break testing may be useful.  
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Note 2: This test method is not appropriate where line o...
SCOPE
1.1 This test method covers the detection of the presence of hydrophobic (nonwetting) films on surfaces and the presence of hydrophobic organic materials in processing environments. When properly conducted, the test will enable detection of molecular layers of hydrophobic organic contaminants. On very rough or porous surfaces, the sensitivity of the test may be significantly decreased.  
1.2 Units—The values stated in SI units are to be regarded as standard. The values given in parentheses after SI units are provided for information only and are not considered standard.  
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4.1 Water can cause the degradation of coatings, so knowledge of how a coating resists water is helpful in predicting its service life. Failure in water fog tests may be caused by a number of factors, including a deficiency in the coating itself, contamination of the substrate, or inadequate surface preparation. The test is therefore useful for evaluating coatings alone or complete coating systems.  
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SCOPE
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SCOPE
1.1 This practice covers procedures for determining discontinuities using two types of test equipment:  
1.1.1 Test Method A—Low Voltage Wet Sponge, and  
1.1.2 Test Method B—High Voltage Spark Testers.  
1.2 This practice addresses metallic substrates. For concrete surfaces, refer to Practice D4787.  
1.3 The values stated in SI units are to be regarded as the standard. The values given in parentheses are for information only.  
1.4 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.  
1.5 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.

  • Standard
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    English language
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  • Standard
    6 pages
    English language
    sale 15% off