ASTM D2022-89 (2024) PDF

Full title and description

ASTM D2022-89(2024) — Standard Test Methods of Sampling and Chemical Analysis of Chlorine-Containing Bleaches. This standard specifies procedures for sampling and performing chemical analyses on chlorine-containing bleaching agents, including sodium hypochlorite solutions, calcium hypochlorite, and chloroisocyanuric acids and their salts. It defines validated titrimetric and gravimetric methods used to determine available chlorine, total chlorine, related impurities and moisture/water content.

Abstract

ASTM D2022-89(2024) provides standardized test methods for collection of representative samples and for chemical determinations relevant to chlorine-containing bleaches. Procedures include iodometric and arsenite-iodometric titrations for available chlorine, tests for sodium chlorate, total chlorine, sodium chloride, total alkalinity (as Na2O), free alkali (as NaOH), moisture, and water, with separate sections addressing soda (sodium hypochlorite) solutions, calcium hypochlorite, and chloroisocyanuric compounds. The standard also highlights sample handling, stability considerations and safety precautions for handling reactive chlorine reagents.

General information

• Status: Active — reapproved/updated 2024
• Publication date: November 1, 2024 (current reapproval of the D2022-89 series)
• Publisher: ASTM International
• ICS / categories: 71.100.99 (Other products of the chemical industry) — Soaps, detergents and related chemical specialties
• Edition / version: D2022-89(2024) — originally approved 1989; multiple reapprovals/revisions (notably R95, R08/R16, reissued 2024)
• Number of pages: 9

Scope

This standard covers sampling and chemical analysis methods for chlorine-containing bleaches. It is organized into method blocks for: (a) sodium hypochlorite (soda bleach) solutions — sampling; available chlorine; sodium chlorate; total chlorine; sodium chloride; total alkalinity as Na2O; free alkali as NaOH; (b) calcium hypochlorite — sampling; available chlorine; water; and (c) chloroisocyanuric acids and their derived salts — sampling; available chlorine by iodometric‑thiosulfate and arsenite‑iodometric methods; and moisture. The standard does not replace safety or regulatory requirements and users are advised to follow appropriate safety data sheets and local regulations.

Key topics and requirements

• Sampling protocols and sample preservation for unstable bleach solutions (avoid light/heat; use dark containers; analyse promptly).
• Determination of available chlorine by iodometric (thiosulfate) titration and arsenite‑iodometric methods.
• Methods for analysis of sodium chlorate, total chlorine, and sodium chloride in sodium hypochlorite solutions.
• Procedures to determine total alkalinity (reported as Na2O) and free alkali (as NaOH) in hypochlorite solutions.
• Water and moisture determination procedures for calcium hypochlorite and chloroisocyanuric materials.
• Notes on reagent standards, dilution techniques, and calculation/reporting conventions for assay results.
• Safety considerations and reminder to consult Material Safety Data Sheets (MSDS) for reagents and materials.

Typical use and users

Used by industrial and commercial chemical laboratories, quality control and production teams at manufacturers of bleach and disinfectant products, pool and water treatment laboratories, regulatory and inspection agencies, and contract testing labs. Typical applications include product specification testing, batch release testing, routine QC, stability investigations, and regulatory compliance sampling.

Related standards

ASTM D2022 is developed under ASTM Committee D12 (Soaps and Other Detergents) and is published in Annual Book Volume 15.04. It is associated with and referenced by related test methods and standards dealing with disinfectants, reagent specifications and sampling practices (examples: other ASTM D12 series methods, reference methods for reagents and titrations, and standards that reference D2022 such as certain product test standards). Users should consult national catalogues or the ASTM database for the most directly linked standards in their application (for example, standards that reference or are referenced by D2022 and sector-specific methods).

Keywords

bleach, chlorine, sodium hypochlorite, calcium hypochlorite, chloroisocyanuric acids, available chlorine, iodometric titration, arsenite‑iodometric, sampling, moisture, water content, sodium chlorate, total chlorine, alkalinity, free alkali, quality control

FAQ

Q: What is this standard?

A: ASTM D2022-89(2024) is a collection of standardized test methods for sampling and chemically analysing chlorine-containing bleaches — covering sodium hypochlorite solutions, calcium hypochlorite, and chloroisocyanuric acids and salts.

Q: What does it cover?

A: It covers sampling procedures and specific chemical analyses including available chlorine (by iodometric and arsenite‑iodometric titrations), sodium chlorate, total chlorine, sodium chloride, total alkalinity (as Na2O), free alkali (as NaOH), water content and moisture, plus guidance on sample handling and safety.

Q: Who typically uses it?

A: Industrial and contract testing laboratories, manufacturers of bleaching and disinfectant products, pool and water treatment laboratories, and regulatory/inspection bodies use it for routine QC, batch release testing and compliance verification.

Q: Is it current or superseded?

A: The document series D2022-89 has been maintained through periodic reapprovals. The current reapproved/reissued version is D2022-89(2024), published in 2024; users should verify they hold the 2024 reapproval when requiring the latest text.

Q: Is it part of a series?

A: Yes — D2022 is part of the ASTM D12 suite of standards for soaps, detergents and related chemical specialties (Annual Book Volume 15.04) and sits with other D12 methods and subcommittee D12.12 analytical/specification methods.

Q: What are the key keywords?

A: Bleach; chlorine; hypochlorite; available chlorine; iodometric titration; arsenite‑iodometric; sodium chlorate; moisture; sampling; alkalinity; quality control.