ISO 9683-1:2006 PDF

Name: ISO 9683-1:2006 — Iron ores — Determination of vanadium — Part 1: BPHA spectrophotometric method
SKU: ISO 9683-1:2006
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Iron ores — Determination of vanadium — Part 1: BPHA spectrophotometric method

Название (английский):

ISO 9683-1:2006

Iron ores — Determination of vanadium — Part 1: BPHA spectrophotometric method

Статус документа:: Действующий
Формат:: Электронный (PDF)
Количество страниц:: 12
Дата публикации:: 1 декабря 2006 г.
Издание:: ISO IS 9683 edition 1 version 1
ICS:: 73.060.10

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Описание (английский):

ISO 9683-1:2006 specifies a spectrophotometric method using N-benzoyl-phenylhydroxylamine (BPHA) for the determination of the mass fraction of vanadium in iron ores. This method is applicable to mass fractions of vanadium between 0,005 and 0,5 % in natural iron ores, iron ore concentrates and agglomerates, including sinter products.

Abstract

Похожие стандарты

Стандарты, упомянутые в описании

Overview

ISO 9683-1:2006 specifies a BPHA spectrophotometric method for the determination of vanadium mass fraction in iron ores. The method covers natural iron ores, iron ore concentrates and agglomerates (including sinter), and is applicable to vanadium contents from 0.005 % to 0.5 % (mass fraction). The standard defines the analytical principle, required reagents and apparatus, sampling and sample preparation, calibration, precision guidance and reporting requirements.

Key topics and technical requirements

Analytical principle: Fusion with sodium peroxide, acid leach, oxidation to pentavalent vanadium, complexation with N‑benzoyl‑phenylhydroxylamine (BPHA), chloroform extraction and spectrophotometric measurement at approximately 535 nm.

Applicable range: 0.005–0.5 % V in iron ores, concentrates and sinter products.

Sample preparation: Laboratory sample particle size −100 µm (or −160 µm for ores with significant combined water/oxidizable compounds) following ISO 3082 and ISO 7764. Predried test samples at 105 °C ± 2 °C.

Test portion & replication: Typical test portion ~0.5 g (weighed to 0.0002 g); analyses carried out at least in duplicate with independent repetitions and appropriate recalibration.

Quality control: Each run requires a blank test and an analysis of a certified reference material of similar ore type. Calibration uses prepared vanadium standards and background solution.

Reagents & apparatus: Requires BPHA reagent, potassium permanganate, sodium nitrite, urea, chloroform, sodium peroxide, orthophosphoric/sulfuric/hydrochloric acids; apparatus includes zirconium or vitreous carbon crucibles, muffle furnace (420 °C ± 10 °C) and a spectrophotometer.

Safety: The method involves hazardous reagents and operations (e.g., chloroform, high‑temperature fusion); users must apply appropriate lab safety practices.

Applications and users

ISO 9683-1:2006 is designed for:

Mining and mineral processing laboratories performing vanadium assays in iron ore feedstocks and concentrates.

Quality assurance/quality control (QA/QC) teams monitoring ore composition for smelting, blending and trading.

Analytical service laboratories providing certified results for commercial transactions, regulatory reporting and process control.

Research groups studying vanadium distribution in ore deposits or metallurgical behavior.

Practical benefits include a standardized, validated spectrophotometric procedure suited to routine laboratory workflows, clear guidance on sampling/preparation and built‑in QC (blanks, CRMs, calibration and precision data).

Related standards

ISO 9683 (Part 2 under preparation - Flame atomic absorption spectrometric method)

ISO 3082 (sampling and sample preparation), ISO 7764 (predried test samples), ISO 3696 (laboratory water), ISO 648 / ISO 1042 (glassware).

Keywords: ISO 9683-1:2006, vanadium determination, BPHA spectrophotometric method, vanadium in iron ore, spectrophotometry, iron ores QA/QC.

ISO 9683-1:2006 PDF

Abstract

Похожие стандарты

Overview

Key topics and technical requirements

Applications and users

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

ISO 9683:1991

Iron ores — Determination of vanadium content — BPHA spectrophotometric method

SIST EN ISO 3696:1998

Water for analytical laboratory use - Specification and test methods (ISO 3696:1987)

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