These 55 mm diameter very slow filtering, purple dot filter paper discs are used for quantitative & gravimetric analyses as well as for pressure or vacuum filtration.
They are made out of 100 %...
Use for quantitative air pollution analysis as a paper tape for impregnation when determining gaseous compounds at high flow rates or for quantitative air pollution analysis. Whatman™ Quantitative...
Whatman® Grade 113 filter paper has a particle filtration size of 30 ?m at 98% efficiency. It is a fast, open filter paper with creped surface and high loading capacity ? making it highly suited for...