ISO/TS 9516-4:2021 PDF

Name: ISO/TS 9516-4:2021 — Iron ores — Determination of various elements by X-ray fluorescence spectrometry — Part 4: Performance-based method using fusion preparation method
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Iron ores — Determination of various elements by X-ray fluorescence spectrometry — Part 4: Performance-based method using fusion preparation method

Название (английский):

ISO/TS 9516-4:2021

Iron ores — Determination of various elements by X-ray fluorescence spectrometry — Part 4: Performance-based method using fusion preparation method

Статус документа:: Действующий
Формат:: Электронный (PDF)
Количество страниц:: 12
Дата публикации:: 30 ноября 2021 г.
Издание:: ISO TS 9516 edition 1 version 1
ICS:: 73.060.10

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Описание (английский):

This document specifies a performance-based method for the chemical analysis of natural and processed iron ores by fused bead wavelength and energy dispersive X-ray fluorescence (XRF). It is applicable to all elements of interest when adequate calibrations have been established.

Abstract

Похожие стандарты

Стандарты, упомянутые в описании

Overview

ISO/TS 9516-4:2021 - “Iron ores - Determination of various elements by X‑ray fluorescence spectrometry - Part 4: Performance‑based method using fusion preparation method” - defines a performance‑based XRF procedure for chemical analysis of natural and processed iron ores. The specification covers both wavelength‑dispersive (WDXRF) and energy‑dispersive (EDXRF) X‑ray fluorescence instruments using fused‑bead sample preparation. It is applicable to all elements of interest (elemental range B to U) provided adequate calibrations are established.

Key topics and technical requirements

Performance‑based approach: Specifies required analytical performance and validation criteria rather than prescribing every operational detail, enabling flexibility for different instruments and laboratories.

Fusion (fused‑bead) sample preparation: Describes preparation of borate glass beads to eliminate particle‑size effects and produce homogeneous specimens for XRF analysis.

Reagents and flux: Requires analytical‑grade reagents; recommends high‑purity lithium/sodium borate fluxes. The document notes pre‑treatment of oxides (e.g., heating to 1 000 °C) and gives typical sample:flux ratios (commonly 1:10).

Sampling and sample preparation: Details laboratory sample definitions, preparation of predried test samples, and handling of ores with combined water or oxidizable compounds.

Instrument measurements: Guidance on choice of analytical lines, voltage/current settings, measuring times, and background measurements for both WDXRF and EDXRF.

Calibration and validation: Procedures for preparing fusion beads for calibration, use of certified reference materials (CRMs) and reference materials (RMs), validation of trueness, and calibration maintenance (monitor discs, duplicate checks).

Quality control and reporting: Requirements for ongoing QC measurements, calculation of results, number of significant figures/decimals, and content of the test report.

Applications and users

ISO/TS 9516-4:2021 is intended for:

Mineral and iron ore laboratories performing routine and forensic chemical analysis.

Mining and beneficiation operations conducting quality control of feedstocks and products.

Producers, traders and consumers of iron ore who require consistent elemental assays.

Accredited testing laboratories and instrument manufacturers developing calibrations and validation protocols for XRF fused‑bead methods.

Practical benefits include faster multi‑element screening, reduced sample heterogeneity versus pressed powders, and compatibility with laboratory QA/QC programs when CRMs and validated calibrations are used.

Related standards

ISO 9516‑1 (preparative procedures and oxidation state guidance)

ISO 2596 (hygroscopic moisture)

ISO 3082 (sampling and sample preparation procedures)

ISO 7764 (preparation of predried test samples)

ISO Guide 31 and ISO Guide 35 (reference materials guidance)

Keywords: ISO/TS 9516-4:2021, iron ores, XRF, fused bead, fusion preparation, wavelength dispersive XRF, energy dispersive XRF, calibration, certified reference materials, analytical method.

ISO/TS 9516-4:2021 PDF

Abstract

Похожие стандарты

Overview

Key topics and technical requirements

Applications and users

Related standards

Технические детали

SIST ISO 9516-1:2006

Iron ores - Determination of various elements by X-ray fluorescence spectrometry - Part 1: Comprehensive proc…

SIST ISO 25964-2:2013

Information and documentation -- Thesauri and interoperability with other vocabularies -- Part 2: Interoperab…

BS ISO 3082:2017

Iron ores. Sampling and sample preparation procedures.

ISO 7764:1985

Iron ores — Preparation of predried test samples for chemical analysis