Whatman quantitative filters are designed for gravimetric analysis and the preparation of sample for instrumental analysis. Ashless filter papers with 0.007% ash maximum are very pure filters ideal for a wide range of critical analytical filtration procedures. All ashless papers are sold as packs of 100.
Grade 44 (3µm)
Thin version of Grade 42 retaining very fine particles but with lower ash weight per sample and almost twice the flow rate.
To help you choose the right filter for your application please click on the image below that will take you to the application guide for:
There is also a link to the Cytiva Filter Paper Selector Guide
How do you choose the right size filter paper for your funnel? Use the table below to see what size filter paper you should use Gravity filtration using a filter paper inside a filtration funnel is used to remove precipitates from a liquid. The remaining liquid is known as the filtrate. For standard shaped filter funnels where the walls are at 58 or 60° the table below shows the r...
When looking for filters there are a lot of different options available to suit different applications. It is important to ensure you choose the best type for your work, but what do the different terms mean? Paper or Cellulose Filters - these are manufactured from cellulose fibres and are used for general filtration. The particle retention level can go down to 2.5 µm. This type of filter pap...
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Grade 14 [44] Quantitative filter paper (ashless) Diameter 70mm Pack 100
£17.67 excl. VAT
£21.20 inc. VAT
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