ISO 2597-1-2006 PDF

Full title and description

St ISO 2597-1-2006 — Iron ores — Determination of total iron content — Part 1: Titrimetric method after tin(II) chloride reduction. This standard specifies a volumetric (titrimetric) procedure using potassium dichromate after reduction of iron(III) to iron(II) with tin(II) chloride for determining total iron in iron ores, concentrates and agglomerates within a defined concentration range.

Abstract

ISO 2597-1:2006 describes a titrimetric method for determination of total iron in natural iron ores, iron ore concentrates and agglomerates (including sinter) by reducing trivalent iron with tin(II) chloride and titrating with potassium dichromate. The procedure is intended for total iron contents from about 30 % to 72 % (mass fraction) and includes guidance on sample preparation, reagents, apparatus, calculation of results and a suggested procedure for removal of mercury from waste solutions.

General information

• Status: Published (international standard; confirmed current by ISO review process).
• Publication date: 2006-05 (Edition 2 — published April/May 2006; effective/confirmed in subsequent ISO reviews, most recently confirmed in 2022).
• Publisher: International Organization for Standardization (ISO).
• ICS / categories: 73.060.10 (Iron ores — chemical analysis).
• Edition / version: Edition 2 (2006).
• Number of pages: 13.

Scope

Specifies a titrimetric method for the determination of total iron content in natural iron ores, iron ore concentrates and agglomerates (including sinter products). The method uses reduction of Fe(III) by Sn(II) followed by titration of the reduced iron with potassium dichromate; it is applicable to total iron contents in the mass-fraction range of approximately 30 % to 72 %. The standard also gives related requirements for sampling references, sample preparation and includes an informative annex addressing removal of mercury from waste solutions.

Key topics and requirements

• Principle: chemical reduction of Fe(III) to Fe(II) with tin(II) chloride and back-titration with potassium dichromate.
• Applicable range: about 30 % to 72 % total iron (mass fraction) in typical iron ore materials.
• Requirements for reagents and apparatus (including volumetric glassware, standard solutions, indicators and reducing agents such as SnCl2).
• Sample preparation and corrections linked to ISO sampling and moisture procedures (see related standards).
• Precision, calculation and expression of results with specified formulae and reporting requirements.
• Environmental/safety note: guidance (informative) on removal of mercury from waste solutions to reduce effluent contamination.
• Limitations and interferences: chemical interferences and the appropriate treatment to ensure accurate titration results (described in procedure and notes).

Typical use and users

Used by metallurgical and assay laboratories, mine-site quality control and quality assurance teams, ore processing and beneficiation plants, and national reference laboratories for routine and contractual analysis of iron ores and concentrates. Laboratories use this method for compliance testing, product specification checks and process control where the iron content falls within the method’s specified range.

Related standards

Part of the ISO 2597 series on iron ores analysis. Closely related/commonly referenced documents include ISO 2597-2 (Part 2: titrimetric methods after titanium(III) chloride reduction — updated 2019), ISO 3082 (sampling and sample preparation procedures), ISO 2596 (hygroscopic moisture for analytical samples) and ISO 1042 (laboratory volumetric glassware).

Keywords

Iron ores, total iron, titration, potassium dichromate, tin(II) chloride, chemical analysis, ISO 2597-1, ore concentrates, sinter, assay, QC/QA.

FAQ

Q: What is this standard?

A: ISO 2597-1:2006 is an international standard specifying a titrimetric method for determining total iron in iron ores using Sn(II) reduction and potassium dichromate titration.

Q: What does it cover?

A: It covers principle and procedure, reagents and apparatus, sample preparation references, calculation of results, applicable concentration range (≈30–72 % Fe by mass) and includes guidance on handling waste (mercury removal).

Q: Who typically uses it?

A: Mining and metallurgical laboratories, assay services, producers and purchasers of iron ore, accreditation bodies and other testing laboratories performing routine and contractual iron assays.

Q: Is it current or superseded?

A: ISO 2597-1:2006 (Edition 2, 2006) is published and was reviewed/confirmed by ISO’s review process (last confirmation noted in 2022), so this edition remains current as published. For complementary methods and mercury‑free alternatives see ISO 2597-2 (latest edition 2019).

Q: Is it part of a series?

A: Yes — it is Part 1 of the ISO 2597 series (iron ores — determination of total iron content). Part 2 (ISO 2597-2) provides alternative/related titrimetric procedures and later editions address mercury‑free methods.

Q: What are the key keywords?

A: Iron ores; total iron; titrimetric method; potassium dichromate; tin(II) chloride; assay; ISO 2597-1; ore concentrates; sinter; chemical analysis.