HeyWin Quantitative Filter Paper Science,90mm,Pack of 100,Used for Chemical Analysis Experiment,also and Funnel Science(Diameter 90mm)

Quantitative filter paper science diameter: 90 mm,compatible with HeyWin porcelain buchner funnel of 100mm Ash content: ≤0.01%,the ash weight of each filter paper after ashing is a fixed value, is mainly used for ashing and weighing experiments after filtration possesses a pore size of between 15-20µm,filter papers remove particles > 20 µm Medium speed: 35 - 70 sec HeyWin Team always adhere to the principle of customer first, and serve with heart. If you encounter problems with the product, please contact us immediately, we will give you a satisfactory answer within 24 hours