Carbonaceous materials used in the production of aluminium — Determination of density by gas pyknometry (volumetric) using helium as the analysis gas — Solid materials
NORMA vydána dne 28.2.2007
Označení normy: ISO 21687:2007
Datum vydání normy: 28.2.2007
Počet stran: 6
Přibližná hmotnost: 18 g (0.04 liber)
Země: Mezinárodní technická norma
Kategorie: Technické normy ISO
Description / Abstract: 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.