Filter Paper, round, Grade 43, 110 mm, 100 pc/PAK

Whatman Grade 43 is equivalent to Schleicher & Schuell 589/1 and Munktell 388
Properties: -Medium fast filtration-Filtration speed of 155 s/100 ml-The retention rate of this grade is between that of Grades 40 and 41 and is twice as fast as Grade 40. Typical applications include: foodstuffs analysis; soil analysis; particle collection for air pollutant measurements for subsequent XRF methods, and inorganic analysis in the construction, mining and steel industries.
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. Intermediate in retention between Grades 40 and 41, and twice as fast as Grade 40. Typical applications include: foodstuffs analysis; soil analysis; particle collection in air pollution monitoring for subsequent analysis by X-Ray fluorescence (XRF) techniques; and inorganic analysis in the construction, mining, and steel industries. Grade 43: 16 µm

Here you can find the certificate: https://www.cytivalifesciences.com/en/de/support/quality/certificates