ISO 14427:2024

International
Standard
ISO 14427
Second edition
Carbonaceous materials used in
2024-08
the production of aluminium —
Cold and tepid ramming pastes
— Preparation of unbaked test
specimens and determination of
apparent density after compaction
Produits carbonés utilisés pour la production de l'aluminium —
Pâtes de brasquage froides et tièdes — Préparation d'éprouvettes
non cuites et détermination de la densité apparente après
compactage
Reference number
© ISO 2024
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Published in Switzerland
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Contents Page
Foreword .iv
Introduction .v
1 Scope . 1
2 Normative references . 1
3 Terms and definitions . 1
4 Principle . 1
5 Apparatus and materials . 1
6 Sampling . 2
7 Procedure . 2
8 Expression of results . 2
8.1 Apparent density of unbaked paste .2
8.2 Precision . . .3
9 Test report . 3

iii
Foreword
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This document was prepared by Technical Committee ISO/TC 226, Materials for the production of primary
aluminium.
This second edition cancels and replaces the first edition (ISO 14427:2004), which has been technically
revised.
The main changes are as follows:
— the mass of the falling weight and the ramming rate have been corrected.
Any feedback or questions on this document should be directed to the user’s national standards body. A
complete listing of these bodies can be found at www.iso.org/members.html.

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ISO 14427:20
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