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Qualitative Standard Filter Paper | Cytiva/Whatman
The Industry Standard for High-Purity Filtration
- Qualitative filter papers are general-purpose filters used for a wide range of applications in and out of the laboratory.
- Made from cellulose fiber, these filters are manufactured from high-quality cotton linters treated to maximize alpha cellulose.
- Alpha cellulose is the most stable form of cellulose, with the highest degree of polymerization, ensuring high quality and consistency.
- Grades are based on properties such as particle retention, thickness, and weight.
- Unlike quantitative filter papers (e.g., ashless grades that can be burned off for analytical applications), qualitative papers are designed for general-purpose use.
Whatman™ Grade 1 Qualitative Filter Papers, Circles (100/PK)Standard grade medium flow rate cellulose filter papers Learn MoreAs low as $12.37Part Number: 1001-Dxx-Series
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Whatman™ Grade 2 Qualitative Filter Papers, Circles (100/PK)Standard grade cellulose filter papers Learn MoreAs low as $14.39Part Number: 1002-Dxx-Series
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Whatman™ Grade 3 Qualitative Filter Papers, Circles (100/PK)Standard grade filter for use in Büchner funnels Learn MoreAs low as $26.89Part Number: 1003-Dxx-Series
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Whatman™ Grade 4 Qualitative Filter Papers, Circles (100/PK)Standard grade high flow rate cellulose filter papers Learn MoreAs low as $14.62Part Number: 1004-Dxx-Series
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Whatman™ Grade 5 Qualitative Filter Papers, Circles (100/PK)Standard grade clarifying filter excellent for cloudy suspensions, water and soil analysis Learn MoreAs low as $28.55Part Number: 1005-Dxx-Series
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Whatman™ Grade 6 Qualitative Filter Papers, Circles (100/PK)Standard grade filter for boiler water analysis Learn MoreAs low as $21.35Part Number: 1006-Dxx-Series
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