ISO 10143:2019 アルミニウム製造用の炭素質材料—電極用の焼成コークス—顆粒の電気抵抗率の決定 | ページ 2

Foreword

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This document was prepared by Technical Committee ISO/TC 226, Materials for the production of primary aluminium.

This third edition cancels and replaces the second edition, ISO 10143:2014, of which it constitutes a minor revision. The main changes compared to the previous edition are as follows:

• Clause 5, Apparatus, has been updated;
• Clause 10, Test report, has been updated.

1 Scope

This document specifies a method for the determination of the electrical resistivity of granular carbon (calcined or graphitized) used in the manufacture of carbon electrodes for the production of aluminium.

The measurement of electrical resistivity assists in assessing the extent of coke calcination. The electrical resistivity of the coke aggregate will influence the electrical resistivity of the coke electrodes made from it.

In general, a more highly calcined coke will have a lower electrical resistivity if other factors, such as grain size, are similar.

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.

3 Terms and definitions

No terms and definitions are listed in this document.

ISO and IEC maintain terminological databases for use in standardization at the following addresses: