The method and results obtained from this apparatus depend upon the rate at which air flows under a given pressure gradient through a bed of powder of known density and voids content, in order to determine the surface area of the individual particles.

 

Specifications:

The complete equipment comprises of one Air permeability Cell Lea and Nurse type for areas 500 to 10000sq.cm/gm. Complete with perforated plate one capillary tube, one plunger for compaction of sample and a wooden case.

 

Accessories:

Air source, Comprising one Pressure chamber fitted with a valve, regulator, connecting tube, a foot pump and two drying towers. Manometer liquid in 500 ml bottles.