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ISO 23028:2019

Aluminium oxide primarily used for the production of aluminium -- Preparation and storage of test samples

General information
Valid from 23.07.2019
Directives or regulations
None
Standard history
Status
Date
Type
Name
23.07.2019
Main
01.09.1976
Main
This document describes methods for the sample preparation of smelter-grade aluminium oxide. It covers the reduction of a bulk sample between 1 kg and 20 kg to produce a sample that is suitable for chemical and physical analysis. The reduced sample produced will be representative of the initial bulk sample. The bulk sample is considered to be from one source. The methods are suitable for dry, free-flowing aluminium oxide. As the moisture content will influence many physical analyses, the method aims to minimize the exposure of the sample to the atmosphere to avoid water absorption.
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