7cm 9cm 11cm 12.5cm 15cm 18cm Qualitative Filter Paper for Chemical Analysis

Cotton fiber qualitative filter paper for chemical analysis; pore sizes 80-120um, 30-50um, 1-3um; fast/medium/slow filtration speed; 100 circles/pack; for gravimetric analysis

Specifications: material: cotton fiber; diameter: 7cm, 11cm, 12.5cm, 15cm, 18cm; Pore size: 80-120um / 30-50um / 1-3um; Package: 100 circles/pack