WHA1091930
Whatman® qualitative filter paper, Grade 91, creped
sheets, W × L 580 mm × 580 mm, pack of 500
Synonym(s):
Whatman filter, Z699624, filter paper, paper filter
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About This Item
UNSPSC Code:
41104900
NACRES:
NB.24
material
cellulose
sheets
feature
Grade 91
packaging
pack of 500
manufacturer/tradename
Cytiva
Whatman 1091-930
Whatman Article No. 28417542 (US reference)
parameter
2 psi wet burst
70 sec/100 mL speed (Herzberg)
W × L
580 mm × 580 mm
thickness
205 μm
pore size
10 μm (Particle retention)
basis weight
71 g/m2
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General description
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.
Grade 91: 10 μm (credped filter paper)
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.
Grade 91: 10 μm (credped filter paper)
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.
Features and Benefits
- 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.
Other Notes
Field of Use : For internal research use only. Products are not intended for diagnostic use or resale.
Legal Information
Whatman is a registered trademark of Cytiva
Regulatory Information
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