stonylab Qualitative Filter Paper Circles, Cellulose Filter Paper in 56mm Cap with 20 Micron Particle Holding Medium Filtration Speed, Pack of 100 (56mm Diameter)

Ottimi filtri perfetti per imbuti da laboratorio , poi Stonylab ... non si sbaglia . Grazie.

All’s good

+++1A, kann ich nur empfehlen. Immer gite Qualität. ä Qualität +++1A.

very good quality and durability. It can withstand even most alkali or oxine compounds

These 56mm filters fit perfectly in a CoorsTek 60240 porcelain buchner funnel. I could not get them to fit with Stonylab porcelain buchner filters. They work best with cold water extractions, from my experience, but i have used water alcohol mixtures, solvents such as chloroform, and vacuum filtration of small amounts of concentrated acids, and they seem to hold up well. They work well for filtering fine charcoal, and other fine particulates. I use them almost daily!