ASTM D4327-17 PDF

Full title and description

Standard Test Method for Anions in Water by Suppressed Ion Chromatography — a laboratory test procedure that describes the sequential determination of common inorganic anions (including fluoride, chloride, nitrite, orthophosphate, bromide, nitrate and sulfate) in water samples using suppressed ion chromatography with an anion-exchange column and conductivity detection.

Abstract

This test method (ASTM D4327-17) specifies instrument configuration, eluents/suppression approaches, sample handling, calibration and quality-control procedures for quantitative and qualitative determination of seven common anions in environmental and process waters. It permits modern eluent-generation and electrolytic suppression/ regeneration systems and reports practical detection limits in the low mg/L to sub‑mg/L range for many analytes.

General information

• Status: Published as ASTM D4327-17 (catalog records vary; some databases list reapproval/confirmation while others show withdrawn/cancelled notices — users should confirm the current active/withdrawn status with ASTM International).
• Publication date: 2017 (approved/issued December 2017, often cited as D4327-17).
• Publisher: ASTM International (American Society for Testing and Materials).
• ICS / categories: Chemical analysis / water quality — commonly indexed under ICS 71.040.40 (chemical analysis).
• Edition / version: D4327-17 (designation indicates the 2017 approval).
• Number of pages: 13 pages (standard document length in public catalogs).

Scope

The method covers sequential determination of fluoride (F−), chloride (Cl−), nitrite (NO2−), orthophosphate (HPO4−2), bromide (Br−), nitrate (NO3−), and sulfate (SO4−2) in water matrices using suppressed ion chromatography. The upper and lower quantitation limits depend on total anion concentration, injection volume and detector sensitivity; dilution or smaller injection loops may be used to extend working ranges. The method also approves the use of modern reagent-free (electrolytically generated) eluents and electrodialytic suppression/regeneration systems.

Key topics and requirements

• Analytes: F−, Cl−, NO2−, HPO4−2 (ortho‑phosphate), Br−, NO3−, SO4−.
• Technique: Suppressed ion chromatography with anion‑exchange column and conductivity detection; order of elution depends on column/eluents.
• Eluents and suppression: Accepts carbonate or hydroxide eluents and permits electrolytically generated eluents and electrolytic suppression/regeneration (reagent‑free systems).
• Sensitivity and limits: Catalog examples report single‑lab detection/quantitation down to ~0.01 mg/L for some anions under specific conditions; practical limits depend on injection volume and detector full‑scale settings.
• Quality control: Calibration with standards, method blanks, spikes and recovery checks; determination of upper limits and required dilutions described in annex/appendices.
• Applicability: Drinking water, raw waters, treated waters and many wastewaters — users must verify matrix compatibility and possible interferences (coeluting organic acids, water dip effects for fluoride, etc.).

Typical use and users

Environmental and contract analytical laboratories, water and wastewater utilities, regulatory agencies, research institutions and industrial process control laboratories use this method for routine monitoring, compliance testing and method development when ion chromatography is the chosen analytical technique.

Related standards

Preceding edition: ASTM D4327-11 (superseded by the 2017 edition). Related ion‑chromatography and anion methods include other ASTM and EPA methods for specific anions (e.g., single‑analyte methods for sulfate, nitrate, etc.) and methods for wet deposition or atmospheric samples that use suppressed ion chromatography. Users often consult complementary methods when matrix or regulatory requirements demand single‑analyte procedures or different sample preparation.

Keywords

anions, ion chromatography, suppressed ion chromatography, fluoride, chloride, nitrite, nitrate, bromide, phosphate, sulfate, water analysis, ASTM D4327-17.

FAQ

Q: What is this standard?

A: ASTM D4327-17 is the Standard Test Method for Anions in Water by Suppressed Ion Chromatography, describing procedures to separate and quantify common inorganic anions in water using suppressed IC.

Q: What does it cover?

A: It covers instrument configuration, eluents and suppression options (including reagent‑free eluent generation), sample handling, calibration, QC and procedures for measuring fluoride, chloride, nitrite, orthophosphate, bromide, nitrate and sulfate in water. Limits and upper ranges are determined experimentally and may be extended by dilution or smaller injection volumes.

Q: Who typically uses it?

A: Environmental/contract labs, water and wastewater utilities, regulators, industrial labs and researchers who perform routine or compliance anion analyses by ion chromatography.

Q: Is it current or superseded?

A: The standard was approved in 2017 as D4327-17. Public catalogs show both confirmations/reapprovals and withdrawn/cancelled notices in some databases; because third‑party listings can differ, confirm the document's current active/withdrawn status directly with ASTM International before relying on it for regulatory compliance.

Q: Is it part of a series?

A: It is part of ASTM water/chemical‑analysis test methods (committee D19 on water) and belongs to the broader family of anion and ion‑chromatography standards; earlier editions (for example D4327-11) are related.

Q: What are the key keywords?

A: Anions, suppressed ion chromatography, anion exchange, conductivity detector, fluoride, chloride, nitrite, nitrate, bromide, phosphate, sulfate, water analysis.