Whatman™ Grade 91 Qualitative Filter Papers
A general purpose creped filter for less critical routine analysis. Widely used to assay sucrose in cane sugar and within pharmaceutical laboratories for routine filtration.
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Grade 91 Qualitative Filter Papers
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Overview
A general purpose creped filter for less critical routine analysis. Widely used to assay sucrose in cane sugar and within pharmaceutical laboratories for routine filtration.
These extremely strong filter papers have a high wet strength due to the addition of a small quantity of chemically stable resin. Normal qualitative applications will not introduce any significant impurities into the filtrate. The resins do, however, contain nitrogen so these grades should not be used in Kjeldahl estimations, etc. Some wet strengthened grades are available in folded (prepleated) forms.
Product specifications
Showing 10 products
Specs
Product
Dimensions
Availability
Price
1091-150
Ø 150 mm
In stock10 available
1091-185
Ø 185 mm
In stock152 available
1091-190
Ø 190 mm
Selling fast5 available
1091-110
Ø 110 mm
Stock on request
1091-125
Ø 125 mm
Stock on request
1091-165
Ø 165 mm
Stock on request
1091-240
Ø 240 mm
Stock on request
1091-330
Ø 330 mm
Discontinued
1091-930
58 x 58 cm
Stock on request
1091-935
61 x 61 cm
Stock on request
Product availability is not guaranteed and subject to change.
