WHA1004930
Whatman® qualitative filter paper, Grade 4
sheets, W × L 580 mm × 580, pack of 100
Synonym(s):
Z752363
Sign Into View Organizational & Contract Pricing
All Photos(1)
About This Item
UNSPSC Code:
41104900
NACRES:
NB.24
Recommended Products
material
cellulose
sheets
feature
Grade 4
packaging
pack of 100
manufacturer/tradename
Whatman 1004-930
Whatman Article No. 28414031 (US reference)
parameter
0.22 psi wet burst
37 sec/100 mL speed (Herzberg)
W × L
580 mm × 580
thickness
205 μm
ash
≤0.06%
pore size
20-25 μm (Particle retention)
basis weight
92 g/m2
Looking for similar products? Visit Product Comparison Guide
General description
Whatman Grade 4 Qualitative Filter Papers are a standard grade, high flow rate filter paper.
Excellent retention: captures coarse particles and gelatinous precipitates such as ferric hydroxide and aluminum hydroxide. Fast filtration: useful for routine clean-up of biological fluids or organic extracts during analysis
Grade 4 Qualitative Filter Papers (20-25 µm particle retention) are available in a variety of sizes and formats including circles, sheets, and rolls. They are also available as prepleated filters, which give improved flow rate and increased loading capacity compared to equivalent flat filters.
Excellent retention: captures coarse particles and gelatinous precipitates such as ferric hydroxide and aluminum hydroxide. Fast filtration: useful for routine clean-up of biological fluids or organic extracts during analysis
Grade 4 Qualitative Filter Papers (20-25 µm particle retention) are available in a variety of sizes and formats including circles, sheets, and rolls. They are also available as prepleated filters, which give improved flow rate and increased loading capacity compared to equivalent flat filters.
Features and Benefits
- Useful in qualitative analytical separations when Fast flow is required and the collection of fine particles is not critical.
- These cellulose filters are used in qualitative analytical techniques to determine and identify materials (e.g., in air pollution monitoring).
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
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’.
Already Own This Product?
Find documentation for the products that you have recently purchased in the Document Library.
Customers Also Viewed
Our team of scientists has experience in all areas of research including Life Science, Material Science, Chemical Synthesis, Chromatography, Analytical and many others.
Contact Technical Service