CMS09-805-D Paper Filter Whatman 1001/090 9Cm Dia 100/pk
- Whatman Qualitative Grade Plain Circle Filter Paper, Grade 1. 9 cm diameter. For general-purpose use, air-pollution monitoring and soil chemical analysis. Particle retention: > 11 micrometers. Medium porosity. Filtration speed: ASTM - 40 sec.; Herzberg - 150 sec. Smooth surface. 100/pk.
