ASTM D4658-15 PDF

Full title and description

ASTM D4658-15 — Standard Test Method for Sulfide Ion in Water. This method uses a sulfide ion‑selective electrode (potentiometric) to determine free sulfide in aqueous samples; applicable over the range 0.04 to 4000 mg/L and intended for groundwater, wastewater and other water matrices where sulfide causes odor or corrosion concerns.

Abstract

Provides procedures, apparatus and reagents for potentiometric measurement of sulfide ion in water using an ion‑selective electrode. Precision data in the standard were developed using reagent water; users are advised to verify performance for other matrices. The standard includes safety notes regarding potential release of hydrogen sulfide when samples are acidified.

General information

• Status: Withdrawn (early January 2024; withdrawn by ASTM, no direct replacement indicated).
• Publication date: Current edition approved March 15, 2015 (published April 2015).
• Publisher: ASTM International (Committee D19 on Water; Subcommittee D19.05 on Inorganic Constituents in Water).
• ICS / categories: 13.060.50 (Examination of water for chemical substances).
• Edition / version: D4658-15 (revises D4658-09).
• Number of pages: 5 pages.

Scope

This test method specifies a potentiometric procedure using a sulfide ion‑selective electrode to determine sulfide ion concentration in water. The method is applicable from 0.04 to 4000 mg/L sulfide. Precision statements in the text were developed with reagent water; applicability to other sample types must be confirmed by the user. Safety provisions note that acidification can liberate hydrogen sulfide gas, which is highly toxic and requires appropriate precautions.

Key topics and requirements

• Measurement principle: potentiometric determination with a sulfide ion‑selective electrode.
• Applicable range: nominally 0.04–4000 mg/L sulfide.
• Required apparatus: pH/millivolt meter or specific ion meter, sulfide ion‑selective electrode, double‑junction reference electrode (recommended), and standard volumetric glassware.
• Reagents and solutions: alkaline buffers and stabilizing reagents (examples in the standard include NaOH, ascorbic acid, disodium EDTA, and sulfide standards/preparations); reagent‑grade chemicals required.
• Quality and precision notes: precision data supplied were from reagent water; users must validate for environmental or complex matrices and follow the QC guidance referenced in related ASTM practices.
• Health & safety: warnings about H2S generation on acidification and required protective measures and ventilation.
• DOI and editorial data: DOI 10.1520/D4658-15; Summary of Changes and references to related ASTM documents included in the full text.

Typical use and users

Used by environmental and water‑testing laboratories, wastewater treatment facilities, hydrogeologists, consulting engineers and regulatory agencies for monitoring sulfide levels that affect odor control, corrosion assessment and compliance testing. Specialized laboratories that operate ion‑selective electrodes and follow ASTM water‑analysis QA/QC procedures are the primary users.

Related standards

Previous edition: ASTM D4658-09. The standard references and is referenced by several ASTM documents and guides on ion‑selective electrodes, spiking practices and water analysis QC (examples include references to D4127 terminology, D5810 and D5847 practices). Listings in standards catalogs also indicate cross‑references from more recent related ASTM water standards. Note: D4658-15 was withdrawn in early January 2024 in accordance with ASTM committee regulations requiring review within eight years of approval.

Keywords

sulfide, sulfide ion, ion‑selective electrode, potentiometric, water analysis, wastewater, groundwater, H2S, ASTM D4658, inorganic constituents.

FAQ

Q: What is this standard?

A: ASTM D4658-15 is a Standard Test Method that describes a potentiometric procedure using a sulfide ion‑selective electrode to measure sulfide ion in water samples.

Q: What does it cover?

A: It covers scope, apparatus, reagents, calibration and measurement procedures for sulfide determination over the range ~0.04 to 4000 mg/L, plus notes on precision, interferences and safety (notably H2S hazards).

Q: Who typically uses it?

A: Environmental and analytical chemistry laboratories, wastewater operators, consultants and agencies that monitor sulfide for odor, corrosion control or regulatory reasons. Laboratories using ion‑selective electrode techniques will find it directly applicable.

Q: Is it current or superseded?

A: D4658-15 was withdrawn in early January 2024 (withdrawal recorded by ASTM and in standards catalogs). The withdrawal means it is no longer an active ASTM standard; check with ASTM or national standards bodies for any replacement or alternative test methods prior to use.

Q: Is it part of a series?

A: It is part of ASTM Committee D19 (Water) standards and sits alongside other water‑analysis methods and practices (for example methods and guides for ion‑selective electrodes, spiking practices and QC). It directly revises and replaces earlier edition D4658-09.

Q: What are the key keywords?

A: Sulfide, sulfide ion, ion‑selective electrode, potentiometric, water analysis, H2S.