ISO 12985-2:2018

INTERNATIONAL ISO
STANDARD 12985-2
Second edition
2018-05
Carbonaceous materials used in the
production of aluminium — Baked
anodes and cathode blocks —
Part 2:
Determination of apparent density
and of open porosity using a
hydrostatic method
Produits carbonés utilisés pour la production de l'aluminium —
Anodes cuites et blocs cathodiques —
Partie 2: Détermination de la masse volumique apparente et de la
porosité ouverte par une méthode hydrostatique
Reference number
©
ISO 2018
© ISO 2018
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Contents Page
Foreword .iv
1 Scope . 1
2 Normative references . 1
3 Terms and definitions . 1
4 Principle . 1
5 Reagents . 1
6 Apparatus . 2
7 Sampling . 2
8 Procedure. 2
8.1 Determination of dry sample mass . 2
8.2 Determination of the volume. 2
9 Calculation . 3
10 Precision . 3
10.1 Apparent density . 3
10.1.1 Repeatability . 3
10.1.2 Reproducibility . 3
10.2 Open porosity . 3
10.2.1 Repeatability . 3
10.2.2 Reproducibility . 4
11 Test report . 4
Bibliography . 5
Foreword
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bodies (ISO member bodies). The work of preparing International Standards is normally carried out
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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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URL: www .iso .org/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 12985-2:2000, of which it constitutes a
minor revision.
A list of all parts in the ISO 12985 series can be found on the ISO website.
iv © ISO 2018 – All rights reser
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