The range of Whatman filtration aids are available in two forms and pack sizes.
ASHLESS FLOC - Bulky mass of dry dispersed cellulose fibres which assist coagulation by forming a more flocculent suspension. Ash content is 0.015% by weight.
ASHLESS CLIPPINGS - These are offcuts for maceration to make a pure filter pulp, which settles under suction in a funnel to form a thick, highly retentive filter bed.