ASTM D3375-18
(Test Method)Standard Test Method for Column Capacity of Particulate Mixed Bed IonExchange Materials
Standard Test Method for Column Capacity of Particulate Mixed Bed Ion<brk/>Exchange Materials
SIGNIFICANCE AND USE
5.1 This test method can be used to evaluate unused mixed bed ion exchange materials for conformance to specifications. When a representative sample of the mixed bed can be obtained from an operating unit, this test method can be used to evaluate the regeneration efficiency by comparison with the same data obtained with new material from the same manufactured lots, or retained samples of the in-place products.
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 cation exchange material has been regenerated to the hydrogen form with acid and the anion exchange material has been regenerated with alkali to the hydroxide or free-base form. In certain applications a cation exchange material in the potassium, ammonium, or other monovalent form may be encountered. Such materials may be tested following this procedure using Test Water A (Test Methods D1782) as the influent and substituting the hardness end point (Test Methods D1782) for the end points prescribed herein.
5.4 In most cases the product tested will be properly mixed and will contain the correct proportions of anion and cation exchange materials. However, if the pH as well as the conductivity of the effluent is measured, the test method will indicate which of the components is present in excess; an acid effluent at breakthrough indicating an excess of regenerated cation exchange groups and an alkaline effluent an excess of regenerated anion exchange groups. In such cases the volumes of the two components obtained in the final backwash will indicate whether this imbalance arises from improper regeneration or from an improper ratio of the two components. It should be noted, however, that not all units are charged with a balanced ratio of anion-exchanging and cation-exchanging groups. Hence, wherever possible, a field sample should be evaluated in comparison with a retained sample ...
SCOPE
1.1 This test method covers the determination of the performance of particulate mixed bed ion exchange materials in the regenerated form when used for deionization. It is intended for use in testing unused mixed bed materials and samples of regenerated mixed beds from operating units.
1.2 The values stated in SI units are to be regarded as standard. The values given in parentheses are mathematical conversions to inch-pound units that are provided for information only and are not considered 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, health, and environmental 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.
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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: D3375 − 18
Standard Test Method for
Column Capacity of Particulate Mixed Bed Ion Exchange
1
Materials
This standard is issued under the fixed designation D3375; 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 late Cation-Exchange Materials
D2687 Practices for Sampling Particulate Ion-Exchange Ma-
1.1 This test method covers the determination of the perfor-
terials
mance of particulate mixed bed ion exchange materials in the
regenerated form when used for deionization. It is intended for
3. Terminology
use in testing unused mixed bed materials and samples of
regenerated mixed beds from operating units. 3.1 Definitions—For definitions of terms related to water,
refer to Terminology D1129.
1.2 The values stated in SI units are to be regarded as
standard. The values given in parentheses are mathematical
4. Summary of Test Method
conversions to inch-pound units that are provided for informa-
4.1 This test method consists of exhausting a column of
tion only and are not considered standard.
regenerated mixed bed ion exchange material to a specific end
1.3 This standard does not purport to address all of the
point with an influent solution of known composition and
safety concerns, if any, associated with its use. It is the
volume.
responsibility of the user of this standard to establish appro-
priate safety, health, and environmental practices and deter-
5. Significance and Use
mine the applicability of regulatory limitations prior to use.
5.1 This test method can be used to evaluate unused mixed
1.4 This international standard was developed in accor-
bed ion exchange materials for conformance to specifications.
dance with internationally recognized principles on standard-
When a representative sample of the mixed bed can be
ization established in the Decision on Principles for the
obtained from an operating unit, this test method can be used
Development of International Standards, Guides and Recom-
to evaluate the regeneration efficiency by comparison with the
mendations issued by the World Trade Organization Technical
Barriers to Trade (TBT) Committee. same data obtained with new material from the same manu-
factured lots, or retained samples of the in-place products.
2. Referenced Documents
5.2 This test method provides for the calculation of capacity
2
2.1 ASTM Standards: in terms of the volume of water treated to a conductivity end
D1125 Test Methods for Electrical Conductivity and Resis- point.
3
tivity of Water (Withdrawn 2023)
5.3 The test method as written assumes that the cation
D1129 Terminology Relating to Water
exchange material has been regenerated to the hydrogen form
D1193 Specification for Reagent Water
with acid and the anion exchange material has been regener-
D1293 Test Methods for pH of Water
ated with alkali to the hydroxide or free-base form. In certain
D1782 Test Methods for Operating Performance of Particu-
applications a cation exchange material in the potassium,
ammonium, or other monovalent form may be encountered.
Such materials may be tested following this procedure using
1
This test method is under the jurisdiction of ASTM Committee D19 on Water
Test Water A (Test Methods D1782) as the influent and
and is the direct responsibility of Subcommittee D19.08 on Membranes and Ion
substituting the hardness end point (Test Methods D1782) for
Exchange Materials.
the end points prescribed herein.
Current edition approved May 1, 2018. Published May 2018. Originally
approved in 1975. Last previous edition approved in 2016 as D3375 – 16. DOI:
5.4 In most cases the product tested will be properly mixed
10.1520/D3375-18.
2
and will contain the correct proportions of anion and cation
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
exchange materials. However, if the pH as well as the
Standards volume information, refer to the standard’s Document Summary page on
conductivity of the effluent is measured, the test method will
the ASTM website.
3
indicate which of the components is present in excess; an acid
The last approved version of this historical standard is referenced on
www.astm.org. effluent at breakthrough indicating an excess of regenerated
Copyright © ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959. United States
1
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D3375
...
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: D3375 − 16 D3375 − 18
Standard Test Method for
Column Capacity of Particulate Mixed Bed Ion
1
Exchange Materials
This standard is issued under the fixed designation D3375; 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 particulate mixed bed ion exchange materials in the
regenerated form when used for deionization. It is intended for use in testing unused mixed bed materials and samples of
regenerated mixed beds from operating units.
1.2 The values stated in SI units are to be regarded as standard. The values given in parentheses are mathematical conversions
to inch-pound units that are provided for information only and are not considered 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 safety, health, and healthenvironmental 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
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
D1782 Test Methods for Operating Performance of Particulate Cation-Exchange Materials
D2687 Practices for Sampling Particulate Ion-Exchange Materials
3. Terminology
3.1 Definitions—For definitions of terms related to water, refer to Terminology D1129.
4. Summary of Test Method
4.1 This test method consists of exhausting a column of regenerated 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 materials for conformance to specifications. When
a representative sample of the mixed bed can be obtained from an operating unit, this test method can be used to evaluate the
regeneration efficiency by comparison with the same data obtained with new material from the same manufactured lots, or retained
samples of the in-place products.
5.2 This test method provides for the calculation of capacity in terms of the volume of water treated to a conductivity end point.
1
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 July 1, 2016May 1, 2018. Published July 2016May 2018. Originally approved in 1975. Last previous edition approved in 20072016 as
D3375 – 95a (2007).D3375 – 16. DOI: 10.1520/D3375-16.10.1520/D3375-18.
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.
Copyright © ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959. United States
1
---------------------- Page: 1 ----------------------
D3375 − 18
5.3 The test method as written assumes that the cation exchange material has been regenerated to the hydrogen form with acid
and the anion exchange material has been regenerated with alkali to the hydroxide or free-base form. In certain applications a
cation exchange material in the potassium, ammonium, or other monovalent form may be encountered. Such materials may be
tested following this procedure using Test Water A (Test Methods D1782) as the influent and substituting the hardness end point
(Test Methods D1782) for the end points prescribed herein.
5.4 In most cases the product tested will be properly mixed and will contain the correct proportions of anion and cation
exchange materials. However, if the pH as well as the conductivity of the effluent is measured, the test method will indicate which
of the components is presen
...
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