ISO 18843:2015

Aluminium oxide primarily used for the production of aluminium — Method for the determination of flow time

ISO 18843:2015 sets out a method for determining the amount of time taken for a given quantity of smelter-grade alumina to flow by gravity through a precisely constructed standard funnel. NOTE Variations in the apparatus and other test variables can create significant inter-laboratory differences in results. (See Table A.1.)

Oxyde d'aluminium principalement utilisé pour la production d'aluminium — Méthode de détermination du temps d'écoulement

General Information

• Status: Published
• Publication Date: 03-Jun-2015
• ICS: 71.100.10 - Materials for aluminium production
• Technical Committee: ISO/TC 226 - Materials for the production of primary aluminium
• Drafting Committee: ISO/TC 226 - Materials for the production of primary aluminium
• Current Stage: 9093 - International Standard confirmed
• Completion Date: 24-Oct-2022

Standards Content (Sample)

INTERNATIONAL ISO
STANDARD 18843
First edition
2015-06-01
Aluminium oxide primarily used for the
production of aluminium — Method for
the determination of flow time
Oxyde d’aluminium principalement utilisé pour la production
d’aluminium — Méthode de détermination du temps d’écoulement
Reference number
ISO 18843:2015(E)
©
ISO 2015

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ISO 18843:2015(E)

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ISO 18843:2015(E)

Contents Page
Foreword .iv
Introduction .v
1 Scope . 1
2 Normative references . 1
3 Principle . 1
4 Apparatus . 1
5 Sample preparation . 1
6 Procedure. 2
6.1 General . 2
6.2 Number of determinations . 2
6.3 Determination . 2
7 Reporting of results . 2
8 Precision . 2
9 Test report . 3
Annex A (informative) Results of planned trial . 5
Bibliography . 6
© ISO 2015 – All rights reserved iii

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ISO 18843:2015(E)

Foreword
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The committee responsible for this document is ISO/TC 226, Materials for the production of primary aluminium.
iv © ISO 2015 – All rights reserved

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