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ISO 21687:2007

Carbonaceous materials used in the production of aluminium — Determination of density by gas pyknometry (volumetric) using helium as the analysis gas — Solid materials

Feb 28, 2007

General information

90.93     Jan 4, 2022

ISO

ISO/TC 226

International Standard

71.100.10  

English  

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Scope

ISO 21687:2007 specifies a method for the determination of the density of green and calcined petroleum coke and similar solid materials (e.g. electrodes). ISO 21687:2007 is also suitable for hydrocarbons with a high-temperature boiling range and for other solid materials.
This method is not suitable for graphitized material.

Life cycle

NOW

PUBLISHED
ISO 21687:2007
90.93 Standard confirmed
Jan 4, 2022