BS ISO 15906:2007

This standard BS ISO 15906:2007 Carbonaceous materials for the production of aluminium. Baked anodes. Determination of the air permeability is classified in these ICS categories:

• 71.100.10 Materials for aluminium production

This International Standard describes a method for the measurement of the air permeability of baked anodes, by determining the resistance to airflow of a specimen of specified volume at room temperature, within the range of air permeability between 0,01 nPm (nanoperms) and 10 nPm.

“Green” anodes are considered to be impermeable to gas. Therefore, this test is most applicable to “baked” carbon material.

NOTE This method can also be used for measuring other carbon materials (e.g. microporous carbon materials), but precision statements are not available for other carbon materials.