ISO 21826-1:2022
Iron ores — Determination of total iron content using the EDTA photometric titration method — Part 1: Microwave digestion method

Standard No.

ISO 21826-1:2022

Release Date

2022

Published By

International Organization for Standardization (ISO)

Latest

ISO 21826-1:2022

Scope

This document specifies a photometric titration method using EDTA for the determination of the total iron content of iron ores. This method is applicable to a concentration range of a mass fraction of 37,00 % to 72,00 % of total iron in natural iron ores, iron ore concentrates and agglomerates, including sinter products. This method does not apply as a referee method.

ISO 21826-1:2022 Referenced Document

• ISO 1042 Laboratory glassware - One-mark volumetric flasks
• ISO 2596 Iron ores - Determination of hygroscopic moisture in analytical samples - Gravimetric, Karl Fischer and mass-loss methods
• ISO 3082 Iron ores - Sampling and sample preparation procedures
• ISO 385 Laboratory glassware - Burettes
• ISO 648 Laboratory glassware - Single-volume pipettes
• ISO 7764 Iron ores - Preparation of predried test samples for chemical analysis

ISO 21826-1:2022 history

• 2022 ISO 21826-1:2022 Iron ores — Determination of total iron content using the EDTA photometric titration method — Part 1: Microwave digestion method