WHA1001090
Whatman® qualitative filter paper, Grade 1
circles, diam. 90 mm, pack of 100
Synonym(s):
Whatman filter, Whatman paper, Z240079, paper filter
About This Item
material
cellulose filters
circles
packaging
pack of 100
manufacturer/tradename
Whatman 1001-090
Whatman Article No. 28413914 (US reference)
parameter
0.25 psi wet burst
150 sec/100 mL speed (Herzberg)
diam.
90 mm
thickness
180 μm
ash
≤0.06%
pore size
11 μm (Particle retention)
basis weight
87 g/m2
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General description
The most widely used filter paper for routine applications with medium retention and flow rate. These cellulose filters are used in qualitative analytical techniques to determine and identify materials. Prepleated qualitative filters are also available, which give improved flow rate and increased loading capacity compared to equivalent flat filters.
Features and Benefits
- Qualitative analytical separations for precipitates such as lead sulfate, calcium oxalate (hot), and calcium carbonate
- Agricultural soil analysis and seed testing procedures
- Industrial food processing techniques to extract liquid or separate solid foodstuffs from associated liquid
- Air pollution monitoring by collecting atmospheric dust from airflow and photometrically measuring the stain-intensity
- Gas detection by quantitative chromogenesis with optical reflectance
Other Notes
Legal Information
Regulatory Information
Certificates of Analysis (COA)
Search for Certificates of Analysis (COA) by entering the products Lot/Batch Number. Lot and Batch Numbers can be found on a product’s label following the words ‘Lot’ or ‘Batch’.
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