Foreword

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This document was prepared by Technical Committee ISO/TC 102, Iron ore and direct reduced iron, Subcommittee SC 2, Chemical analysis.

This second edition cancels and replaces the first edition (ISO/TS 9516-2:2024), which has been technically revised.

The main changes are as follows:

change to conditions for drying flux;
change to frequency of monitor measurements;
removal of Annex D and replacement with reference to ISO TR 18231;
corrections to internal references.

A list of all parts in the ISO 9516 series can be found on the ISO website.

Any feedback or questions on this document should be directed to the user’s national standards body. A complete listing of these bodies can be found at www.iso.org/members.html.

1 Scope

This document sets out a wavelength dispersive X-ray fluorescence procedure for the determination of various elements in iron ores. The method is applicable to iron ores regardless of mineralogical type.

2 Normative references

3 Terms and definitions

4 Principle

5 Reagents and materials

5.1

5.2

5.3

5.4

5.5

5.6

5.7

5.8

5.9

5.10

5.11

5.12

5.13

5.14

6 Apparatus

6.1

6.2

6.3

6.4

6.5

6.6

6.7

6.8

6.9

6.10

7 Sampling and samples

7.1 Laboratory sample

7.2 Preparation of test samples

8 Procedure

8.1 General

8.2 Number of determinations

8.3 Check analysis and blank test

8.4 Preparation of discs

8.5 Measurement

8.6 Drift correction

9 Calculation of results

9.1 General

9.2 Calibration equation

9.3 Calculation of alpha coefficient

9.4 Correction for sample, flux and oxidizer mass

9.5 Calculation of calibration

9.6 Calculation of concentrations

10 General treatment of results

10.1 Background equivalent concentration (BEC)

10.2 Determination of analytical result

10.3 Check for trueness

10.4 Calculation of the final result

10.5 Oxide factors

11 Test report

Bibliography