Qualitative Filter Paper, 270 mm dia, Cellulose, Grade 1573 1/2

A medium fast filter paper with high wet strength. Time-saving Whatman™ qualitative grades are offered in this convenient form, which gives major advantages over flat circles.

Diameter	:	270 mm
Grade	:	Grade 1573 1/2
Material	:	Cellulose
Grade Type	:	Folded (Prepleated)
Type	:	Qualitative
Filtration Speed	:	25 sec
Format	:	Circle
Nominal Basis Weight	:	88 g/m2
Particle Retention in Liquid	:	25 µm Max.
Properties	:	Fast, Smooth
Thickness	:	170 µm

This paper has the same chemical resistance characteristics as Grade 1573Savings in time required to quadrant-fold circles to fit conical filter funnels in repetitive or multiple analysesDecreased overall filtration time because of the extra surface area exposed; the normal slow down of filtration speed due to the loading of particulate is postponedIncreased total loading capacity as more filter area is availableMaintains flow rate due to the reduction in filter paper contact with funnel side and the self-supporting shape of the filter itselfThe prepleating does not significantly affect any of the technical data and the same figures may be used for the flat circles