HeyWin Qualitative Filter Paper 125mm,Pack of 100,Used for Fliter Science Experiment,also Funnel (125mm)

Material: composed of high-quality coarse cellulose, excellent workmanship, bleaching, non toxic, non heating, heat resistance Filter paper diameter: 125mm, pack of 100 Qualitative filter paper possesses a pore size of between 15-20µm,filter papers remove particles > 20 µm,ash content: ≤0.15% Medium flow: Qualitative filter paper works better and helps in the experiment due to the correct flow rate,filtration Speed: 35 – 70 seconds,our paper’s medium retention and flow rate provide a wide array of uses not only biological and chemical fields, but it is also excellent for use in classroom settings 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