描述
- Fast filtering with excellent retention of coarse particles and gelatinous precipitates
- Compliments No. 1 for air pollution monitoring when high flow rates are important
- Low retentivity, 20-25 µm
Whatman4712N20PK 1004090 Grade 4 Qualitative Filter Paper, 90 mm Thick and Max Volume 1621 ml/m (Pack of 100)
