ISO 10203:2017 PDF

Name: ISO 10203:2017 — Iron ores — Determination of calcium — Flame atomic absorption spectrometric method
SKU: ISO 10203:2017
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Iron ores — Determination of calcium — Flame atomic absorption spectrometric method

Название (английский):

ISO 10203:2017

Iron ores — Determination of calcium — Flame atomic absorption spectrometric method

Статус документа:: Действующий
Формат:: Электронный (PDF)
Количество страниц:: 14
Дата публикации:: 29 марта 2017 г.
Издание:: ISO IS 10203 edition 4 version 1
ICS:: 73.060.10

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Описание (английский):

ISO 10203:2017 specifies a flame atomic absorption spectrometric method for the determination of the mass fraction of calcium in iron ores. This method is applicable to mass fractions of calcium between 0,010 % and 8,00 % in natural iron ores, iron ore concentrates, and agglomerates, including sinter products.

Abstract

Похожие стандарты

Стандарты, упомянутые в описании

Overview

ISO 10203:2017 specifies a flame atomic absorption spectrometric (AAS) method for the determination of the mass fraction of calcium in iron ores. The method applies to calcium mass fractions from 0.010 % to 8.00 % and covers natural iron ores, iron ore concentrates, and agglomerates (including sinter products). The standard describes sample preparation, reagent and apparatus requirements, calibration, measurement, and expression of results.

Key Topics

Scope and applicability: Designed for routine calcium analysis in mining and metallurgical quality-control laboratories for ores and concentrates.

Analytical principle: Test portions are decomposed with hydrochloric and nitric acids, silica is dehydrated and removed (including HF treatment), residues fused with sodium carbonate, and the dissolved final solution is measured by flame AAS using a dinitrogen oxide–acetylene burner. Absorbance values are compared with prepared calcium calibration solutions.

Reagents and standards: Includes formulations for background solution, lanthanum chloride matrix modifier, and a 25 μg Ca/ml calcium standard. Key reagents listed: Na2CO3, HCl, HNO3, HF, H2SO4, LaCl3, and certified high‑purity iron for background.

Apparatus and performance criteria: Requires platinum crucibles, a muffle furnace (~1 100 °C), and an atomic absorption spectrometer with N2O/acetylene burner. Instrument performance criteria include minimum sensitivity (absorbance ≥ 0.3 for highest calibration point), linearity checks, and stability limits.

Sampling and sample prep: Laboratory sample particle size −100 μm (or −160 μm when combined water/oxidizable compounds are significant) prepared per ISO 3082 and ISO 7764; predrying and hygroscopic moisture addressed via ISO 2596.

Quality control: Blank tests, check tests, calibration solutions, repeatability and between‑laboratory precision, and procedures for acceptance of analytical values are included.

Applications

Routine QA/QC of iron ore feedstocks for steelmaking and pelletizing plants.

Certification testing for iron ore concentrates, sinter products, and agglomerates.

Metallurgical lab analyses where control of calcium content affects process performance (e.g., slag chemistry, sinter quality).

Regulatory and contractual compliance testing where standardized, traceable calcium measurements are required.

Related standards

ISO 3082 - Sampling and sample preparation procedures (iron ores)

ISO 7764 - Preparation of predried test samples for chemical analysis

ISO 2596 - Determination of hygroscopic moisture in analytical samples

ISO 3696 - Water for analytical laboratory use

ISO 648, ISO 1042 - Laboratory glassware specifications

ISO 80000-1 - Quantities and units

Keywords: ISO 10203:2017, iron ores, calcium determination, flame atomic absorption spectrometry, AAS, calcium in ores, ore analysis, lab method, QA/QC.

ISO 10203:2017 PDF

Abstract

Похожие стандарты

Overview

Key Topics

Applications

Who uses this standard

Related standards

Технические детали

BS ISO 3082:2017

Iron ores. Sampling and sample preparation procedures.

ISO 7764:1985

Iron ores — Preparation of predried test samples for chemical analysis

SIST ISO 25964-2:2013

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SIST EN ISO 3696:1998

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