ISO 9285:1997

Name: ISO 9285:1997 — Abrasive grains and crude — Chemical analysis of fused aluminium oxide
SKU: ISO 9285:1997
Price: 25 EUR
Availability: InStock

Abrasive grains and crude — Chemical analysis of fused aluminium oxide

Название (английский):

ISO 9285:1997

Abrasive grains and crude — Chemical analysis of fused aluminium oxide

Статус документа:: Действующий
Формат:: Электронный (PDF)
Количество страниц:: 19
Дата публикации:: 22 января 1997 г.
Издание:: ISO IS 9285 edition 1 version 1
ICS:: 25.100.70

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Цена:25 €

Описание (английский):

Deals with the chemical analysis of abrasive grains based on fused aluminium oxide. Describes the gravimetric, colorimetric and the atomic absorption spectrometric determination of the silicon dioxid, iron oxide, titanium oxide, calcium oxide, magnesium oxide, zirconium oxide and aluminium oxide content and the loss on ignition.

Abstract

Standard: ISO 9285:1997 - Abrasive grains and crude - Chemical analysis of fused aluminium oxide

Overview

ISO 9285:1997 specifies standardized chemical analysis methods for abrasive grains and crude materials based on fused aluminium oxide (Al2O3). The standard covers sample preparation, required reagents and apparatus, and detailed procedures for determining loss on ignition and the content of major oxides: silicon dioxide (SiO2), iron oxide (Fe2O3), titanium dioxide (TiO2), calcium oxide (CaO), magnesium oxide (MgO), zirconium oxide (ZrO2) and aluminium oxide (Al2O3). Analytical approaches include gravimetric, colorimetric and atomic absorption spectrometric (AAS) methods. The document also addresses separation steps needed to isolate Fe, Ti, Mg and Ca from aluminium-rich matrices.

Key topics and technical requirements

Scope and applicability: Applies to commercially available fused-alumina abrasive grains and crude (not necessarily altered-by-use material).
Sample preparation: Crushing, sieving (2 mm and 150 µm mesh sizes), coning and quartering to obtain representative 10–20 g test portions; precautions to avoid iron contamination (magnetic separation, alternative mortars).
Loss on ignition: Measured by heating samples in a platinum crucible at 1 100 °C to constant mass.
Silicon dioxide determination: Two routes - a gravimetric silica separation (fusion, acid treatments, HF step) and a colorimetric molybdosilicate method (spectrophotometric read at 700 nm).
Separation procedures: Evaporation and controlled alkalinity adjustments to precipitate and separate aluminium from Fe, Ti, Mg and Ca prior to individual determinations.
Specific determinations: Fe2O3 (colorimetric/gravimetric approaches mentioned), TiO2 (colorimetric), CaO/MgO/ZrO2 (gravimetric), Al2O3 (final determination) and analysis by atomic absorption spectrometry as an alternative for elemental quantification.
Quality control: Blank determinations and standardized reagents (references to ISO 6353 series) and reporting requirements.

Applications and users

ISO 9285 is designed for:

Quality control and incoming inspection in abrasives manufacturing and processing plants.
Analytical laboratories performing certification, material specification compliance and batch release testing for fused aluminium oxide abrasives.
R&D and failure analysis where impurity levels (SiO2, Fe, Ti, Ca, Mg, Zr) affect abrasive performance, life or bonding behavior.
Third‑party test houses and standards compliance auditors needing reproducible, internationally recognized chemical analysis methods.

Practical benefits include consistent reporting, improved comparability between labs, and clearer specification limits for abrasive products.

Related standards

ISO 6353 series - Reagents for chemical analysis
ISO 9138 - Abrasive grains - Sampling and splitting
ISO/TC 29 (technical committee) references and Annex A of ISO 9285 for additional methods

Keywords: ISO 9285, fused aluminium oxide, abrasive grains, chemical analysis, silicon dioxide, iron oxide, titanium dioxide, aluminium oxide, atomic absorption spectrometry, loss on ignition, gravimetric, colorimetric.

Технические детали

Технический комитет: ISO/TC 29/SC 5 - Grinding wheels and abrasives
SKU: ISO 9285:1997

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ISO 9285:1997

Abstract

Похожие стандарты

Overview

Key topics and technical requirements

Applications and users

Related standards

Технические детали

ISO 6353-2:1983

Reagents for chemical analysis — Part 2: Specifications — First series

ISO 9138:2015

Abrasive grains — Sampling and splitting

ISO 8212:1986

Soaps and detergents — Techniques of sampling during manufacture

ISO 20662:2020

Ships and marine technology — Hopper dredger supervisory and control systems

ISO 3021:2023

Adventure tourism — Hiking and trekking activities — Requirements and recommendations

ISO 3826-2:2008

Plastics collapsible containers for human blood and blood components — Part 2: Graphical symbols for use on l…

ISO/IEC 24730-1:2014

Information technology — Real-time locating systems (RTLS) — Part 1: Application programming interface (API)

ISO 8668-5:1992

Aircraft — Terminal junction systems — Part 5: Detail specification for type 3 system