Filter Paper, round, Grade 41, 90 mm, 100 pc/PAK

Features:

• Fast filtration
• Filtration speed of 54 s/100 ml

The fastest ashless filter paper, recommended for analytical procedures involving coarse particles and gelatinous precipitates (e.g., iron or aluminum hydroxides). This filter paper is also used for the determination of gaseous components at high flow rates in the quantitative analysis of air pollution as a filter tape for impregnation.
These are very pure filters suitable for a wide range of critical analytical filtration procedures. Whatman quantitative filters from GE Healthcare are designed for gravimetric analysis and the preparation of samples for instrumental analysis. They are available in three formats designed to meet specific needs. The fastest ashless filter paper, recommended for analytical procedures involving coarse particles or gelatinous precipitates (e.g., iron or aluminum hydroxides). Also used in quantitative air pollution analysis as a paper tape for impregnation when determining gaseous compounds at high flow rates. This filter is also available in a disposable filter funnel. This is a convenient, disposable 47 mm filter funnel with a 250 ml capacity. The 47mm Grade 41 filter can be easily removed for further analysis or culturing.
Grade 41: 20 µm

You may find the certificate here: https://www.cytivalifesciences.com/en/de/support/quality/certificates