ASTM D7513-17

Standard Test Method for Capacity of Mixed Bed Ion Exchange Cartridges

SIGNIFICANCE AND USE
5.1 This test method can be used to evaluate unused mixed bed ion exchange cartridges for conformance to specifications.  
5.2 This test method provides for the calculation of capacity in terms of the volume of water treated to a conductivity end point.  
5.3 The test method as written assumes that the ion exchange resins in the cartridge are either partially or fully converted to the H+ or OH– form. Regeneration of the resins is not part of this method.  
5.4 This test method provides for the calculation of capacity on a cartridge basis.  
5.5 This test method may be used to test different size mixed bed resin cartridges. The flow rate of test water and the frequency of sampling are varied to compensate for the approximate volume of resin in the test cartridge.
SCOPE
1.1 This test method covers the determination of the performance of mixed bed ion exchange resin cartridges in the active form when used for deionization. The test can be used to determine the initial capacity of unused cartridges or the remaining capacity of used cartridges. In this case performance is defined as ion exchange capacity (or throughput) to two defined endpoints. The method does not measure organics and does not attempt to determine the ultimate water quality attainable by the cartridge.  
1.2 The values stated in SI units are to be regarded as standard. No other units of measurement are included in this standard.  
1.3 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  
1.4 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

• Status: Published
• Publication Date: 31-May-2017
• ICS: 71.100.40 - Surface active agents
• Technical Committee: D19 - Water
• Drafting Committee: D19.08 - Membranes and Ion Exchange Materials

Relations

• Replaces: ASTM D7513-09 - Standard Test Method for Capacity of Mixed Bed Ion Exchange Cartridges
• Effective Date: 01-Jun-2017
• Refers: ASTM D1129-13(2020)e2 - Standard Terminology Relating to Water
• Effective Date: 01-May-2020
• Refers: ASTM D3375-16 - Standard Test Method for Column Capacity of Particulate Mixed Bed Ion<brk/>Exchange Materials
• Effective Date: 01-Jul-2016
• Refers: ASTM D1129-10 - Standard Terminology Relating to Water
• Effective Date: 01-Mar-2010
• Refers: ASTM D3375-95a(2007) - Standard Test Method for Column Capacity of Particulate Mixed Bed Ion<br> Exchange Materials (Withdrawn 2016)
• Effective Date: 01-Dec-2007
• Refers: ASTM D1129-06ae1 - Standard Terminology Relating to Water
• Effective Date: 01-Sep-2006
• Refers: ASTM D1129-06a - Standard Terminology Relating to Water
• Effective Date: 01-Sep-2006
• Refers: ASTM D1193-06 - Standard Specification for Reagent Water
• Effective Date: 01-Mar-2006
• Refers: ASTM D1129-06 - Standard Terminology Relating to Water
• Effective Date: 15-Feb-2006
• Refers: ASTM D5391-99(2005) - Standard Test Method for Electrical Conductivity and Resistivity of a Flowing High Purity Water Sample
• Effective Date: 01-Apr-2005
• Refers: ASTM D1125-95(2005) - Standard Test Methods for Electrical Conductivity and Resistivity of Water
• Effective Date: 01-Apr-2005
• Refers: ASTM D1129-04 - Standard Terminology Relating to Water
• Effective Date: 01-Mar-2004
• Refers: ASTM D1129-04e1 - Standard Terminology Relating to Water
• Effective Date: 01-Mar-2004
• Refers: ASTM D1129-03a - Standard Terminology Relating to Water
• Effective Date: 10-Aug-2003
• Refers: ASTM D1129-03 - Standard Terminology Relating to Water
• Effective Date: 10-Mar-2003

Overview

ASTM D7513-17: Standard Test Method for Capacity of Mixed Bed Ion Exchange Cartridges provides a reliable procedure for determining the performance of mixed bed ion exchange resin cartridges, specifically in their active form when used for deionization. Published by ASTM International, this test method is designed to measure the ion exchange capacity of either unused or used cartridges, ensuring that they conform to specifications for treatment applications. The standard focuses on the amount of water a cartridge can process until a defined conductivity endpoint is reached, helping gauge cartridge efficiency and performance.

This method is especially significant for manufacturers, suppliers, and users of mixed bed ion exchange systems, as accurate capacity assessment is crucial for water quality control, system maintenance, and compliance.

Key Topics

• Ion Exchange Capacity: The main parameter measured is the capacity or throughput of a cartridge in terms of the volume of water treated to reach specific conductivity endpoints.
• Cartridge Testing: Provides procedures for testing both unused and partially used mixed bed resin cartridges, evaluating their effectiveness in deionization applications.
• Conductivity Endpoint: Utilizes electrical conductivity as a quantifiable indicator, measuring how much treated water can be produced before conductivity exceeds preset values.
• Test Conditions: The method offers guidance on adjusting test water flow rate and sampling intervals according to cartridge volume, making it applicable to various cartridge sizes.
• Assumptions: Assumes that the resins are in either partially or fully converted (H+ or OH–) forms and does not include procedures for resin regeneration or organic contaminant assessment.

Applications

The ASTM D7513-17 standard is valuable in several practical contexts:

• Quality Control: Ensures new or replacement mixed bed cartridges meet required performance specifications for industrial, laboratory, or municipal applications.
• System Maintenance: Helps users monitor the remaining capacity of in-use cartridges, enabling predictive maintenance and timely cartridge replacement.
• Cartridge Sizing and Selection: Assists suppliers and users in selecting the proper cartridge size based on tested capacities relevant to system requirements.
• Compliance Verification: Supports documentation efforts for regulatory compliance and internal tracking, providing clear, repeatable performance benchmarks.
• Research and Development: Used by manufacturers in developing and refining mixed bed resin formulations for improved deionization performance.

Related Standards

Several ASTM standards are referenced within ASTM D7513-17 to ensure consistency and accuracy in test execution:

• ASTM D1125: Test Methods for Electrical Conductivity and Resistivity of Water
• ASTM D1129: Terminology Relating to Water
• ASTM D1193: Specification for Reagent Water
• ASTM D2777: Practice for Determination of Precision and Bias of Applicable Test Methods of Committee D19 on Water
• ASTM D3375: Test Method for Column Capacity of Particulate Mixed Bed Ion Exchange Materials
• ASTM D5391: Test Method for Electrical Conductivity and Resistivity of a Flowing High Purity Water Sample

These related standards collectively ensure consistent terminology, measurement, and treatment approaches in water quality analysis and ion exchange capacity testing.

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Keywords: mixed bed ion exchange cartridge, ASTM D7513-17, cartridge capacity, deionization, conductivity test, water treatment, resin testing, ion exchange capacity, water quality, ASTM standards.

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: D7513 − 17
Standard Test Method for
Capacity of Mixed Bed Ion Exchange Cartridges
This standard is issued under the fixed designation D7513; 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 D5391 Test Method for Electrical Conductivity and Resis-
tivity of a Flowing High Purity Water Sample
1.1 This test method covers the determination of the perfor-
mance of mixed bed ion exchange resin cartridges in the active
3. Terminology
form when used for deionization. The test can be used to
3.1 Definitions:
determine the initial capacity of unused cartridges or the
3.1.1 For definitions of terms used in this standard, refer to
remainingcapacityof used cartridges. In this case performance
Terminology D1129.
is defined as ion exchange capacity (or throughput) to two
defined endpoints. The method does not measure organics and
4. Summary of Test Method
does not attempt to determine the ultimate water quality
4.1 This test method consists of exhausting a cartridge of
attainable by the cartridge.
mixedbedionexchangematerialtoaspecificendpointwithan
1.2 The values stated in SI units are to be regarded as
influent solution of known composition and volume.
standard. No other units of measurement are included in this
5. Significance and Use
standard.
1.3 This standard does not purport to address all of the 5.1 This test method can be used to evaluate unused mixed
safety concerns, if any, associated with its use. It is the bed ion exchange cartridges for conformance to specifications.
responsibility of the user of this standard to establish appro-
5.2 This test method provides for the calculation of capacity
priate safety and health practices and determine the applica-
in terms of the volume of water treated to a conductivity end
bility of regulatory limitations prior to use
point.
1.4 This international standard was developed in accor-
5.3 The test method as written assumes that the ion ex-
dance with internationally recognized principles on standard-
change resins in the cartridge are either partially or fully
ization established in the Decision on Principles for the
+ –
converted to the H or OH form. Regeneration of the resins is
Development of International Standards, Guides and Recom-
not part of this method.
mendations issued by the World Trade Organization Technical
Barriers to Trade (TBT) Committee. 5.4 This test method provides for the calculation of capacity
on a cartridge basis.
2. Referenced Documents
5.5 Thistestmethodmaybeusedtotestdifferentsizemixed
2.1 ASTM Standards:
bed resin cartridges. The flow rate of test water and the
D1125 Test Methods for Electrical Conductivity and Resis-
frequency of sampling are varied to compensate for the
tivity of Water
approximate volume of resin in the test cartridge.
D1129 Terminology Relating to Water
6. Apparatus
D1193 Specification for Reagent Water
D3375 Test Method for Column Capacity of Particulate
6.1 Test Assembly (Fig. 1), consisting of the following:
Mixed Bed IonExchange Materials
6.1.1 Cartridge, and pressure vessel, if required. Connec-
tions shall be provided at the top and the bottom for the
admission and removal of the ion exchange test water as
This test method is under the jurisdiction of ASTM Committee D19 on Water
described in 7.4.2.
and is the direct responsibility of Subcommittee D19.08 on Membranes and Ion
6.1.2 Test solution tank. Adequate means of regulating and
Exchange Materials.
measuring flow through the cartridge shall be provided. If the
Current edition approved June 1, 2017. Published June 2017. Originally
test flow rate (8.1) can not be obtained by gravity feed, then a
approved in 2009. Last previous edition approved in 2009 as D7513 – 09. DOI:
10.1520/D7513-17.
pump should be used.
For referenced ASTM standards, visit the ASTM website, www.astm.org, or
6.1.3 Measuring circuit and in-line conductivity cells shall
contact ASTM Customer Service at [e-mail]. For Annual Book of ASTM
be as described in Test Methods D1125 or D5391. A continu-
Standards volume information, refer to the standard’s Document Summary page on
the ASTM website. ous recorder is recommended.
Copyright © ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959. United States
D7513 − 17
FIG. 1 Typical Apparatus for Performance Testing of Mixed-Bed Ion Exchange Cartridges
7. Reagents and Materials yellow color. Pipet in 1 mL of K CrO solution (50 g/L) and
2 4
titrate each with standard 0.1 NAgNO solution until the color
7.1 Purity of Reagents—Reagent grade chemicals shall be
of the supernatant solution changes from yellow to red-orange
used in all tests. Unless otherwise indicated, it is intended that
and persists for 30 s with vigorous swirling. Record the
all reagents shall conform to the specifications of the Commit-
averagenumberofmillilitresofAgNO solutionusedto 60.02
tee onAnalytical Reagents of theAmerican Chemical Society,
3 mL.
where such specifications are available. Other grades may be
7.4.2 Calculate the strength of the solution in meq of
used, provided it is first ascertained that the reagent is of
chloride as follows:
sufficiently high purity to permit its use without lessening the
Chloride, meq⁄L 5 V 3N 310 (1)
accuracy of the determination.
7.2 Purity of Water—All reference to water in this test
where:
method shall be understood to mean Reagent Water Type I or
V = millilitres of AgNO solution required for titration, and
II conforming to Specification D1193.
N = normality of the AgNO solution.
7.3 Ammonium Hydroxide Solution (1+19)—Carefully pour
The test solution used should have a concentration of 10 6
50 mL of concentrated ammonium hydroxide (NH4OH, sp gr
0.5 meq/L of chloride.
0.90) into 500 mL of water, stirring constantly. Cool to 25 6
NOTE 1—Because of the large quantities of this reagent that are
5°C and dilute to 1 L with water. Mix well.
required, it is usually made up semi-quantitatively in large batches and
then standardized per the above procedure. If desired, it is acceptable to
7.4 Ion Exchange Test Water D (10 meq/L)—Prepare a test
prepare this reagent quantitatively (as for a primary standard) and then
water containing, in each litre, 0.585 g of oven-dried (105°C)
eliminate the above standardization.
sodium chloride (NaCl). Approximately 25 L of this solution
7.5 Methyl Orange Indicator Solution (1.0 g/L)—Dissolve
are required for a single test.
0.10 g of methyl orange in water and dilute to 100 mL with
7.4.1 To standardize for chloride content, pipet three
water.
100-mL portions. Add one drop of methyl orange indicator
7.6 Nitric Acid (1+9)—Pour one volume of nitric acid
solution and one drop of phenolphthalein indicator solution to
(HNO , sp gr 1.42) into nine volumes of water and mix
each and neutralize, if required, by dropwise addition of
thoroughly.
HNO (1+9)
...

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: D7513 − 09 D7513 − 17
Standard Test Method for
Capacity of Mixed Bed Ion Exchange Cartridges
This standard is issued under the fixed designation D7513; 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 performance of mixed bed ion exchange resin cartridges in the active form
when used for deionization. The test can be used to determine the initial capacity of unused cartridges or the remaining capacity
of used cartridges. In this case performance is defined as ion exchange capacity (or throughput) to two defined endpoints. The
method does not measure organics and does not attempt to determine the ultimate water quality attainable by the cartridge.
1.2 The values stated in SI units are to be regarded as standard. No other units of measurement are included in this standard.
1.3 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
1.4 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.
2. Referenced Documents
2.1 ASTM Standards:
D1125 Test Methods for Electrical Conductivity and Resistivity of Water
D1129 Terminology Relating to Water
D1193 Specification for Reagent Water
D2777 Practice for Determination of Precision and Bias of Applicable Test Methods of Committee D19 on Water
D3375 Test Method for Column Capacity of Particulate Mixed Bed IonExchange Materials
D5391 Test Method for Electrical Conductivity and Resistivity of a Flowing High Purity Water Sample
3. Terminology
3.1 Definitions—Definitions: For definitions of terms related to water, refer to Terminology D1129.
3.1.1 For definitions of terms used in this standard, refer to Terminology D1129.
4. Summary of Test Method
4.1 This test method consists of exhausting a cartridge of mixed bed ion exchange material to a specific end point with an
influent solution of known composition and volume.
5. Significance and Use
5.1 This test method can be used to evaluate unused mixed bed ion exchange cartridges for conformance to specifications.
5.2 This test method provides for the calculation of capacity in terms of the volume of water treated to a conductivity end point.
5.3 The test method as written assumes that the ion exchange resins in the cartridge are either partially or fully converted to
+ -–
the H or OH form. Regeneration of the resins is not part of this method.
5.4 This test method provides for the calculation of capacity on a cartridge basis.
This test method is under the jurisdiction of ASTM Committee D19 on Water and is the direct responsibility of Subcommittee D19.08 on Membranes and Ion Exchange
Materials.
Current edition approved March 15, 2009June 1, 2017. Published April 2009June 2017. Originally approved in 2009. Last previous edition approved in 2009 as D7513
– 09. DOI: 10.1520/D7513-09.10.1520/D7513-17.
For referenced ASTM standards, visit the ASTM website, www.astm.org, or contact ASTM Customer Service at [e-mail]. 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
D7513 − 17
5.5 This test method may be used to test different size mixed bed resin cartridges. The flow rate of test water and the frequency
of sampling are varied to compensate for the approximate volume of resin in the test cartridge.
6. Apparatus
6.1 Test Assembly (Fig. 1) , ), consisting of the following:
6.1.1 Cartridge, and pressure vessel, if required. Connections shall be provided at the top and the bottom for the admission and
removal of the ion exchange test water as described in 7.37.4.2.
6.1.2 Test solution tank. Adequate means of regulating and measuring flow through the cartridge shall be provided. If the test
flow rate (8.1) can not be obtained by gravity feed, then a pump should be used.
6.1.3 Measuring circuit and in-line conductivity cells shall be as described in Test Methods D1125 or D5391. A continuous
recorder is recommended.
7. Reagents and Materials
7.1 Purity of Reagents—Reagent grade chemicals shall be used in all tests. Unless otherwise indicated, it is intended that all
reagents shall conform to the specifications of the Committee on Analytical Reagents of the American Chemical Society, where
such specifications are available. Other grades may be used, provided it is first ascertained that the reagent is of sufficiently high
purity to permit its use without lessening the accuracy of the determination.
7.2 Purity of Water—All reference to water in this test method shall be understood to mean Reagent Water Type I or II
conforming to Specification D1193.
7.3 Ammonium Hydroxide Solution (1+19)—Carefully pour 50 mL of concentrated ammonium hydroxide (NH4OH, sp gr 0.90)
into 500 mL of water, stirring constantly. Cool to 25 6 5°C and dilute to 1 L with water. Mix well.
7.4 Ion Exchange Test Water (10 meq/L, or 500 ppm as CaCOD (10 meq/L)— )—Prepare a test water containing, in each
litre:litre, 0.585 g of oven-dried (105°C) sodium chloride (NaCl). Approximately 25 L of this solution are required for a single test.
7.4.1 0.294 g of calcium chloride dihydrate (CaClTo standardize for chloride content, pipet three 100-mL portions. Add one
drop of methyl orange indicator solution and one drop of phenolphthalein indicator solution to each and neutralize, if required, by
dropwise addition of HNO (1+9) until the color changes from yellow to orange followed by dropwise addition of NH OH (1+19)
3 4
to restore the yellow color. Pipet in 1 mL of K -2HCrO O), solution (50 g/L) and titrate each with standard 0.1 N AgNO solution
2 24 3
until the color of the supernatant solution changes from yellow to red-orange and persists for 30 s with vigorous swirling. Record
the average number of millilitres of AgNO solution used to 60.02 mL.
Reagent Chemicals, American Chemical Society Specifications, American Chemical Society, Washington, DC. For Suggestions on the testing of reagents not listed by
the American Chemical Society, see Annual Standards for Laboratory Chemicals, BDH Ltd., Poole, Dorset, U.K., and the United States Pharmacopeia and National
Formulary, U.S. Pharmacopeial Convention, Inc. (USPC), Rockville, MD.
FIG. 1 Typical Apparatus for Performance Testing of Mixed-Bed Ion Exchange Cartridges
D7513 − 17
7.4.2 0.336 g of oven-dried (105°C) sodium bicarbonate (NaHCOCalculate the strength of the solution in meq of ), and chloride
as follows:
Chloride, meq⁄L5 V 3N 310 (1)
where:
V = millilitres of AgNO solution required for titration, and
N = normality of the AgNO solution.
The test solution used should have a concentration of 10 6 0.5 meq/L of chloride.
NOTE 1—Because of the large quantities of this reag
...