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ASTM D2187-17
Standard Test Methods and Practices for Evaluating Physical and Chemical Properties of Particulate Ion-Exchange Resins (Withdrawn 2026)
Standard Test Methods and Practices for Evaluating Physical and Chemical Properties of Particulate Ion-Exchange Resins (Withdrawn 2026)
D2187-17
ASTM|D2187-17|en-US
Standard Test Methods and Practices for Evaluating Physical and Chemical Properties of Particulate Ion-Exchange Resins (Withdrawn 2026)
Standard
D2187 Standard Test Methods and Practices for Evaluating Physical and Chemical Properties of Particulate Ion-Exchange Resins (Withdrawn 2026)>
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Significance and Use
7.1 The ionic form of an ion-exchange material affects both its equivalent mass and its equilibrium water content. These in turn influence the numerical values obtained in exchange capacity determinations, in density measurements, and in the size of the particles. To provide a uniform basis for comparison, therefore, the sample should be converted to a known ionic form before analysis. This procedure provides for the conversion of cation-exchange materials to the sodium form and anion-exchange materials to the chloride form prior to analysis. These forms are chosen since they permit samples to be weighed and dried without concern for air contamination or decomposition. If other ionic forms are used this fact should be noted in reporting the results.
Scope
1.1 These test methods cover the determination of the physical and chemical properties of ion-exchange resins when used for the treatment of water. They are intended for use in testing both new and used materials. The following thirteen test methods are included:
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| Sections |
| Test Practice A—Pretreatment | 6 – 10 |
| Test Method B—Water Retention Capacity | 11 – 18 |
| Test Method C—Backwashed and Settled Density | 19 – 26 |
| Test Method D—Particle Size Distribution | 27 – 35 |
| Test Method E—Salt-Splitting Capacity of Cation-Exchange Resins | 36 – 45 |
| Test Method F—Total Capacity of Cation-Exchange Resins | 46 – 55 |
| Test Method G—Percent Regeneration of Hydrogen-Form Cation-Exchange Resins | 56 – 64 |
| Test Method H—Total and Salt-Splitting Capacity of Anion-Exchange Resins | 65 – 73 |
| Test Practice I—Percent Regeneration of Anion Exchange Resins | 74 – 82 |
| Test Practice J—Ionic Chloride Content of Anion-Exchange Resins | 83 – 90 |
| Test Method K—Carbonate Content of Anion-Exchange Resins | 91 – 99 |
| Test Method L—Sulfate Content of Anion Exchange Resins | 100 – 108 |
| Test Practice M—Total Anion Capacity of Anion-Exchange Resins | 109 – 117 |
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. Specific precautionary statements are given in Section 10.8.
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.