ISO/TR 16043:2015 PDF

Name: ISO/TR 16043:2015 — Iron ores — Determination of chlorine content — X-ray fluorescence spectrometric method
SKU: ISO/TR 16043:2015
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Iron ores — Determination of chlorine content — X-ray fluorescence spectrometric method

Название (английский):

ISO/TR 16043:2015

Iron ores — Determination of chlorine content — X-ray fluorescence spectrometric method

Статус документа:: Действующий
Формат:: Электронный (PDF)
Количество страниц:: 18
Дата публикации:: 20 октября 2015 г.
Издание:: ISO TR 16043 edition 1 version 1
ICS:: 73.060.10

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Описание (английский):

ISO/TR 16043:2015 sets out a wavelength dispersive X-ray fluorescence procedure for the determination of chlorine in iron ores. The method is applicable to a concentration range of 0,027 % to 1,15 % of chlorine in iron ores regardless of mineralogical type. It is not intended that this method be used for the purpose of trade in iron ores due to the precision of the method.

Abstract

Похожие стандарты

Упомянутые в описании и другие стандарты ISO

Overview

ISO/TR 16043:2015 - "Iron ores - Determination of chlorine content - X-ray fluorescence spectrometric method" is a Technical Report that describes a wavelength-dispersive X-ray fluorescence (WDXRF) procedure for measuring total chlorine in iron ores. The method covers chlorine concentrations from 0.027 % to 1.15 % and is applicable irrespective of iron ore mineralogy. It was published as a Technical Report (not a full International Standard) because inter-laboratory precision was judged insufficient for trade purposes.

Key topics and technical requirements

Analytical principle: Preparation of fused borate glass discs (fusion/casting) to remove particle-size effects; measurement by wavelength-dispersive XRF.

Sample preparation: Fusion of test portion with a borate flux (Flux A or Flux B) to form glass discs; strict control of flux contamination and use of the same flux batch for calibration, blanks and samples.

Calibration and reagents: Calibration based on linear relationship between chlorine concentration and fluorescent intensity; chlorine introduced via sodium chloride stock solution (13.2 g/L). Use of high-purity reagents (e.g., Fe2O3 pre-treatment at 1 000 °C where specified).

Apparatus and materials: Platinum (or Pt-alloy) crucibles and moulds, analytical balances (4 decimal places), conventional or high-frequency furnaces or commercial disc-making machines. Fluxes dried at 500 °C and stored in desiccators.

Measurement details: Applicable to both simultaneous and sequential WDXRF instruments; background correction (net line intensities), selection of analytical lines/crystals/collimators and counting times are described.

Quality and precision: The report includes guidance on repeatability, between-laboratory precision, background equivalent concentration (BEC) acceptability, trueness checks and reporting. The method is explicitly not intended for trade due to its precision limitations.

Applications and users

ISO/TR 16043:2015 is useful for:

Analytical laboratories performing chlorine determination in iron ores (QA/QC and internal control).

Mining and metallurgical companies monitoring feedstock composition and potential chlorine-related impacts on downstream processing.

Instrument manufacturers and method developers validating WDXRF procedures for chlorides in mineral matrices.

Research and laboratory personnel needing a documented WDXRF protocol for total chlorine (complements ISO 9516-1 and ISO 9517).

Related standards

ISO 9517 - Determination of water-soluble chloride in iron ores (complements range and applicability).

ISO 9516-1 - Related iron ore analysis methods (context within ISO/TC 102 work).

Keywords: ISO/TR 16043:2015, iron ores, chlorine determination, X-ray fluorescence, wavelength-dispersive XRF, fused glass discs, borate flux, chlorine content, analytical method.

ISO/TR 16043:2015 PDF

Abstract

Похожие стандарты

Overview

Key topics and technical requirements

Applications and users

Related standards

Технические детали

SIST ISO 9516-1:2006

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