ISO 14420:2020

INTERNATIONAL ISO
STANDARD 14420
Second edition
2020-03
Carbonaceous products for the
production of aluminium — Baked
anodes and shaped carbon products
— Determination of the coefficient of
linear thermal expansion
Produits carbonés utilisés pour la production de l'aluminium —
Anodes cuites et produits carbonés formés — Détermination du
coefficient de dilatation thermique
Reference number
ISO 14420:2020(E)
©
ISO 2020

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ISO 14420:2020(E)

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ISO 14420:2020(E)

Contents Page
Foreword .iv
Introduction .v
1 Scope . 1
2 Normative references . 1
3 Terms and definitions . 1
4 Principle . 2
5 Apparatus . 2
6 Specimens . 3
7 Procedure. 3
7.1 Calibration . 3
7.2 Measurement . 3
8 Evaluation . 3
9 Precision . 4
10 Test report . 4
Bibliography . 5
© ISO 2020 – All rights reserved iii

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ISO 14420:2020(E)

Foreword
ISO (the International Organization for Standardization) is a worldwide federation of national standards
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electrotechnical standardization.
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described in the ISO/IEC Directives, Part 1. In particular, the different approval criteria needed for the
different types of ISO documents should be noted. This document was drafted in accordance with the
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iso/ foreword .html.
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 14420:2005), of which it constitutes a
minor revision.
The main changes to the previous edition are as follows:
— 5.4 has been revised to remove micrometer calliper;
— the formulae in Clause 9, previously Clause 10, have been revised;
— Clause 10, previously Clause 9, has been revised according to ISO/IEC Directives Part 2.
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
iv © ISO 2020 – All rights reserved

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ISO 14420:2020(E)

Introduction
This document is based on DIN 51909:2009.
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INTERNATIONAL STANDARD ISO 14420:2020(E)
Carbonaceous products for the production of
aluminium — Baked anodes and shaped carbon products
— Determination of the coefficient of linear thermal
expansion
1 Scope
This document specifies a method to determine the coefficient of linear thermal expansion of
carbonaceous or graphite materials (solid materials) for the production of aluminium between 20 °C
and 300 °C. It applies to baked anodes and shaped carbon products.
2 Normative references
The following documents are referred to in the text in such a way that some or all of their content
constitutes requirements of this document. For dated references, only the edition cited applies. For
undated references, the latest edition of the referenced document (including any amendments) applies.
ISO 13385-1, Geometrical product specifications (GPS) — Dimensional measuring equipment — Part 1:
Design and metrological characteristics of callipers
DIN 1333, Presentation of numerical data
3 Terms and definitions
For the purposes of this document, the following terms and definitions apply.
ISO and IEC maintain terminological databases for use in standardization at the following addresses:
— ISO Online browsing platform: available at https:// www .iso .org/ obp
— IEC Electropedia: available at http:// www .electropedia .org/
3.1
...