Lab Filter Paper

Fast filter paper:The maximum pore size (UM):20-25,filtration rate (s) <35, ash content (%) less than 0.15,quantitative (g/㎡) 80 ± 4；
Medium speed filter paper:The maximum pore size (UM):15-20,filtration rate (s): 35-70, ash content (%) less than 0.15,quantitative (g/㎡) 80 ± 4；
Slow filter paper:The maximum pore size (UM) 10-15: filtration rate (s) 70-140, ash content (%) less than 0.15,quantitative (g/㎡) 80 ± 4；
Size Specifications:
Shape:circular / square, 5.5cm, 7cm, 9cm, 11cm, 12.5cm, 15cm, 18cm, 24cm, 30cm*30cm, 60cm*60cm, 80cm*80cm and so on, special specifications can be customized.