ASTM D3087-26 PDF

Full title and description

Standard Test Method for Operating Performance of Anion-Exchange Materials for Strong Acid Removal — procedures and acceptance criteria for bench-scale evaluation of anion-exchange resins/beds used to remove strong inorganic acids (hydrochloric and sulfuric) from water streams; includes cyclic backwash, regeneration, rinse and exhaustion steps to simulate service conditions and determine operating capacity and exhaustion end points.

Abstract

This standard describes a laboratory test method to measure the operating performance and exhaustion capacity of anion-exchange materials under simulated service cycles for strong acid removal. The method uses a packed bed column subjected to repeated cycles of backwash, base regeneration, rinse and exhaustion; resistivity (or titration) and pH measurements are used to define exhaustion end points and interpret resin condition and fouling. The procedure is applicable to both new and previously used materials for quality control, supplier comparison and troubleshooting.

General information

• Status: Published / Current (newly issued edition designated D3087‑26).
• Publication date: 1 January 2026 (designation D3087‑26).
• Publisher: ASTM International (ASTM).
• ICS / categories: Industrial classification and water treatment / ion-exchange materials (references list ICS code entries used for related documents).
• Edition / version: D3087‑26 (2026 edition).
• Number of pages: 4 pages (typical short-method format).

Scope

The scope covers a controlled laboratory test for determining the operating capacity and exhaustion behaviour of anion-exchange materials when used to remove strong acids (notably HCl and H2SO4) from water. It establishes test conditions (column geometry, bed height, temperature, flow rates, backwash and regeneration cycles), analytical end points (resistivity preferred; titration as alternative) and interpretation guidance for comparing new and used materials and diagnosing performance loss or fouling. The method explicitly states unit conventions and safety responsibilities for users.

Key topics and requirements

• Test assembly and apparatus: transparent vertical column, specified inside diameter and bed support arrangement.
• Sample preparation and bed packing: specified bed height, liquid overlay and procedures to avoid drying of resin.
• Cycle sequence: backwash, base regeneration (NaOH), rinse, exhaustion and optional titration or resistivity monitoring for end-point definition.
• Operating conditions: controlled temperature (≈25 ± 5 °C), specified flow rates and backwash expansion targets.
• Analytical end points and interpretation: resistivity preferred; titration and pH observations as complementary data for assessing exhaustion and fouling.
• Applicability: intended for both new and used anion-exchange materials and for comparison against reference samples.

Typical use and users

Typical users include resin manufacturers, water treatment system OEMs, plant process engineers, laboratory quality-control personnel, and consultants assessing ion-exchange bed performance and lifecycle. Uses include supplier acceptance testing, QC on incoming materials, failure analysis, benchmarking of resin types and evaluation of regeneration procedures.

Related standards

Referenced and related ASTM practices and test methods commonly cited with this test include D1067 (acidity/alkalinity of water), D1125 (electrical conductivity/resistivity of water), D1129 (terminology relating to water), D1193 (reagent water), D2687 (sampling particulate ion‑exchange materials) and D5391 (conductivity/resistivity of flowing high‑purity water). Historical prior editions (D3087‑17 and earlier) contain background and normative references that remain relevant for method context.

Keywords

anion-exchange, ion-exchange resin, strong acid removal, exhaustion capacity, operating performance, resistivity end point, regeneration, backwash, water treatment.

FAQ

Q: What is this standard?

A: ASTM D3087‑26 is a standardized laboratory test method that specifies how to evaluate the operating performance and exhaustion capacity of anion‑exchange materials used to remove strong acids from water.

Q: What does it cover?

A: It covers apparatus, sample preparation, cyclic operating procedures (backwash, regeneration, rinse, exhaustion), measurement techniques (resistivity preferred; titration alternative), end‑point definitions and interpretation guidance for both new and used anion‑exchange materials.

Q: Who typically uses it?

A: Resin manufacturers, water treatment equipment makers, plant/process engineers, QC laboratories and consultants performing quality checks, supplier comparisons, failure analysis and lifetime assessments of anion‑exchange beds.

Q: Is it current or superseded?

A: The document is provided as the 2026 edition (D3087‑26) and is the current published edition as of 1 January 2026; previous editions include D3087‑17 and earlier versions (D3087‑91 and reapprovals). Work to revise earlier editions was active through 2025. Users should confirm the edition and any later revisions before relying on the procedure.

Q: Is it part of a series?

A: D3087 is one in a family of ASTM standards and test methods related to water analysis and ion‑exchange materials; it cross‑references several ASTM water and sampling standards and fits within committee D19 activity on membranes and ion‑exchange materials.

Q: What are the key keywords?

A: Anion‑exchange, ion exchange, anion resin, strong acid removal, exhaustion capacity, resistivity, regeneration, backwash.