The Fineness Blaine Air Apparatus is used to determine the particle size of Portland cement, limes and similar powders expressed in terms of their specific surface.

It comprises of a stainless steel cell, perforated disc, and plunger. A U-tube glass manometer is fitted to the steel stand. Manometer Liquid, 250 ml.

The set is complete with rubber aspirator and a pack of 100 pcs filter paper