Description
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.
Grade 41 (20-25µm)
The fastest ashless filter paper, recommended for analytical procedures involving coarse particles or gelatinous precipitates. Typical applications include:
- quantitative air pollution analysis
![Whatman® qualitative filter paper, Grade 4, circles [Pack of 100]](https://idealmedical.co.za/wp/wp-content/uploads/2023/11/980-Whatman-Grade-4-200x200.jpg)
![Whatman® application specific filter, prepleated qualitative filter paper, Grade 2555 1/2, circles [Pack of 100]](https://idealmedical.co.za/wp/wp-content/uploads/2022/05/414-whatmann-2555-200x200.jpg)
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