Whatman™ Quantitative Filter Papers, Ashless, Grade 44
Cytiva's Whatman Grade 44 quantitative paper is a thin version of Grade 42 ashless paper. The thinness reduces the overall ash content, making Grade 44 well suited for analyses relying on ash-free dry weight.
Whatman™ Quantitative Filter Papers, Ashless, Grade 44
Cytiva's Whatman Grade 44 quantitative paper is a thin version of Grade 42 ashless paper. The thinness reduces the overall ash content, making Grade 44 well suited for analyses relying on ash-free dry weight.
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Overview
Cytiva's Whatman Grade 44 quantitative paper is a thin version of Grade 42 ashless paper. The thinness reduces the overall ash content, making Grade 44 well suited for analyses relying on ash-free dry weight.
- Accurate ash free dry mass measurements
- Fine nominal particle retention rating of 3 µm
- Filtration speed (Herzberg 995 s)
- Typical thickness of 180 µm
Cytiva's business offers other ashless grades with different particle retention ratings, as well as hardened ashless grades to ensure accurate measurement during analyses of samples that are strongly acidic/alkali.
Fast gravimetric analysis of fine particles
Gravimetric analysis can be time-consuming when filtration of fine particles is required. Because of its reduced thickness, Grade 44 ashless filter paper from Cytiva provides faster filtration of fine particles when compared with thicker papers of similar retention rating, such as Whatman Grade 42 paper.
Looking for a filter paper, membrane filter, or syringe filter? Let Cytiva help you find the optimal filter for your needs to ensure reliable analysis.
Product specifications
Showing 7 products
Whatman™ Grade 44 quantitative filter paper, ashless, thin, 90 mm circle (100/Pk)
1444-090
In stock17 available
Whatman™ Grade 44 quantitative filter paper, ashless, thin, 110 mm circle (100/Pk)
1444-110
In stock23 available
Whatman™ Grade 44 quantitative filter paper, ashless, thin, 125 mm circle (100/Pk)
1444-125
In stock41 available
Whatman™ Grade 44 quantitative filter paper, ashless, thin, 150 mm circle (100/Pk)
1444-150
In stock29 available
Whatman™ Grade 44 quantitative filter paper, ashless, thin, 185 mm circle (100/Pk)
1444-185
In stock81 available
Whatman™ Grade 44 quantitative filter paper, ashless, thin, 70 mm circle (100/Pk)
1444-070
Selling fast4 available
Whatman™ Grade 44 quantitative filter paper, ashless, thin, 240 mm circle (100/Pk)
1444-240
Stock on request
Product availability is not guaranteed and subject to change.
